{"id":212474,"date":"2023-07-26T14:06:13","date_gmt":"2023-07-26T14:06:13","guid":{"rendered":"https:\/\/blog.hannaservice.eu\/razumijevanje-vaznosti-bpk-mjerenje-razine-kisika-u-vodi\/"},"modified":"2023-08-16T08:07:34","modified_gmt":"2023-08-16T08:07:34","slug":"razumijevanje-vaznosti-bpk-mjerenje-razine-kisika-u-vodi","status":"publish","type":"post","link":"https:\/\/blog.hannaservice.eu\/hr\/razumijevanje-vaznosti-bpk-mjerenje-razine-kisika-u-vodi\/","title":{"rendered":"Razumijevanje va\u017enosti BPK: mjerenje razine kisika u vodi"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"212474\" class=\"elementor elementor-212474 elementor-212156\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-dfb7e7c elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dfb7e7c\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4e5a4d0\" data-id=\"4e5a4d0\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-124ee90 elementor-widget elementor-widget-html\" data-id=\"124ee90\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t\t<style>.entry-content p {\n    margin-bottom: 0.8em;\n    line-height: 1.6em;\n}\n\n\n<\/style>\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f9cf874 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f9cf874\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-307881b\" data-id=\"307881b\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1aee6fa\" data-id=\"1aee6fa\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2a0fb60 elementor-widget elementor-widget-heading\" data-id=\"2a0fb60\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Biolo\u0161ka potro\u0161nja kisika (BPK), mjera je koli\u010dine otopljenog kisika (DO) koju koriste aerobni mikroorganizmi pri razgradnji organske tvari u vodi.<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6ecd8ae elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6ecd8ae\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-973941e\" data-id=\"973941e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-7fff750 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7fff750\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-86f2bad\" data-id=\"86f2bad\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-44bd017 elementor-widget elementor-widget-heading\" data-id=\"44bd017\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Va\u017enost BPK za otpadne vode<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-81e2968\" data-id=\"81e2968\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1cb366d elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1cb366d\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e2e4042\" data-id=\"e2e4042\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4c8e09b elementor-widget elementor-widget-text-editor\" data-id=\"4c8e09b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>Biolo\u0161ka potro\u0161nja kisika (BPK) zna\u010dajan je parametar u procjeni kvalitete vode jer slu\u017ei kao pokazatelj za odre\u0111ivanje utjecaja ispu\u0161tenih otpadnih voda na okolni ekosustav.<\/strong><\/p>\n<p>\u0160to je vi\u0161a BPK vrijednost, to je ve\u0107a koli\u010dina organske tvari ili &#8220;hrane&#8221; dostupna bakterijama koje konzumiraju kisik. Ako stopa potro\u0161nje DO od strane bakterija prema\u0161uje opskrbu DO iz vodenih biljaka, fotosinteze algi ili difuzije iz zraka, nastaju nepovoljni uvjeti. Smanjenje DO uzrokuje stres za vodene organizme, \u010dine\u0107i okoli\u0161 neprikladnim za \u017eivot. Nadalje, dramati\u010dno iscrpljivanje mo\u017ee dovesti do hipoksije ili anoksi\u010dnog okru\u017eenja.<\/p>\n<p>BPK se tako\u0111er intenzivno koristi u pro\u010di\u0161\u0107avanju otpadnih voda, gdje se razgradnja organskog otpada pomo\u0107u mikroorganizama obi\u010dno koristi kao metoda pro\u010di\u0161\u0107avanja. Propisi i dozvole za otpadne vode biokemijske potrebe za kisikom razlikuju se me\u0111u zemljama i regijama, kao \u0161to je Nacionalni sustav za uklanjanje one\u010di\u0161\u0107enja (NPDES) u Sjedinjenim Dr\u017eavama, koji utvr\u0111uje najve\u0107u dopu\u0161tenu koncentraciju za izravno ispu\u0161tanje u okoli\u0161 ili ispu\u0161tanje u op\u0107inski kanalizacijski sustav.<\/p>\n<p><strong>Kako bi se sigurno ispustile natrag u okoli\u0161, pro\u010di\u0161\u0107ene vode moraju imati dovoljno nizak BPK kako bi se izbjeglo iscrpljivanje zaliha otopljenog kisika (DO) u ekosustavima.<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d69d478 elementor-widget elementor-widget-text-editor\" data-id=\"d69d478\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Neobra\u0111ena otpadna voda obi\u010dno ima koncentraciju DO manju od <strong>20% ili 1-2 mg\/L<\/strong>, dok bi zdravi rije\u010dni ekosustav trebao biti blizu <strong>100% zasi\u0107enja (8-10 mg\/L)<\/strong>.<\/li>\n<li>Ispu\u0161tanje nedovoljno pro\u010di\u0161\u0107ene otpadne vode mo\u017ee uzrokovati da bakterije tro\u0161e kisik br\u017ee nego \u0161to ga vodene biljke, alge i prirodna aeracija mogu nadoknaditi.<\/li>\n<li>Rezultiraju\u0107e niske razine DO mogu opteretiti ekosustav i imati \u0161tetne u\u010dinke na \u017eivot u vodi, poput ubijanja riba i gubitka vrsta.<\/li>\n<li>BOD<sub>5<\/sub> je naj\u010de\u0161\u0107i kontrolni test za odre\u0111ivanje kvalitete ispu\u0161tenih voda, ali je vrlo spor (5 dana) i pru\u017ea samo ograni\u010denu to\u010dnost.<\/li>\n<li>Kada se ustanovi da vode prelaze pragove sukladnosti, prekasno je za poduzimanje korektivnih mjera jer su ve\u0107 ispu\u0161tene.<\/li>\n<li>Op\u0107ine s kombiniranim kanalizacijskim sustavima koji tako\u0111er skupljaju ki\u0161nicu podlo\u017ene su kombiniranim kanalizacijskim preljevima (CSOs) koji mogu ispu\u0161tati vodu s visokim BPK.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c98b675 elementor-widget elementor-widget-text-editor\" data-id=\"c98b675\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Pra\u0107enje BPK-a u stvarnom vremenu postaje sve popularnije. Kontinuirano pra\u0107enje organskih tvari otvara vrata za mnoge nove mogu\u0107nosti kontrole i optimizacije procesa obrade koje mogu rezultirati zna\u010dajnim u\u0161tedama tro\u0161kova, pobolj\u0161anom kvalitetom vode i bezbri\u017enosti uskla\u0111enosti.<\/p>\n<p><strong>Aplikacije za online mjerenje BPK u otpadnim vodama uklju\u010duju:<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-207984e elementor-widget elementor-widget-text-editor\" data-id=\"207984e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Pra\u0107enje kanalizacije<\/li>\n<li>Optimizacija kemijskog doziranja<\/li>\n<li>Optimizacija prozra\u010divanja<\/li>\n<li>Optimizacija doziranja hranjivih tvari<\/li>\n<li>Upravljanje ispu\u0161tanjem industrijskih otpadnih voda<\/li>\n<li>Pra\u0107enje gubitka proizvoda<\/li>\n<li>Napredni tretman pra\u0107enja i za\u0161tite<\/li>\n<li>Optimizacija ponovne upotrebe vode<\/li>\n<li>Kontrola one\u010di\u0161\u0107enja efluenta<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-18f9733 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"18f9733\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-04c18ab\" data-id=\"04c18ab\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-149b2a1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"149b2a1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-abd6037\" data-id=\"abd6037\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8311fa7 elementor-widget elementor-widget-heading\" data-id=\"8311fa7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Ru\u010dna mjerenja za BPK:<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-0a9f264\" data-id=\"0a9f264\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-268efa9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"268efa9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-8ee3319\" data-id=\"8ee3319\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-68cfbf8 elementor-widget elementor-widget-text-editor\" data-id=\"68cfbf8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Standardna metoda 5210B najra\u0161irenija je laboratorijska tehnika za odre\u0111ivanje biolo\u0161ke potro\u0161nje kisika (BPK). U po\u010detku se uzorak analizira i priprema kako bi se stvorili povoljni uvjeti za rast bakterija. Ova priprema mo\u017ee uklju\u010divati \u200b\u200b<strong>pode\u0161avanje pH vrijednosti, uklanjanje zaostalog klora i smanjenje razine otopljenog kisika (DO)<\/strong> u prezasi\u0107enim uzorcima. Uzorak se zatim razrijedi i unese odgovaraju\u0107a koli\u010dina sjemenskih bakterija. Bilje\u017ei se po\u010detna razina DO i uzorak se inkubira na temperaturi od 20\u00b0C tijekom razdoblja od 5 dana.<\/p>\n<p>Kada istekne razdoblje od 5 dana, uzorak se izvadi iz inkubatora i dobije se kona\u010dno o\u010ditanje otopljenog kisika. BPK se izra\u010dunava na temelju smanjenja DO i volumena uzorka, pomo\u0107u sljede\u0107e formule:<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-617036e elementor-widget elementor-widget-text-editor\" data-id=\"617036e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><strong>BOD<sub>5<\/sub> = BOD mg\/L = [(Inicijalni DO &#8211; Finalni DO) \u2013 korekcija sjemena] x faktor razrje\u0111ivanja<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fdc8db elementor-widget elementor-widget-text-editor\" data-id=\"8fdc8db\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Me\u0111utim, oslanjanje isklju\u010divo na prikupljene uzorke uzrokuje zna\u010dajna ka\u0161njenja. Kada se BOD rezultati prime 5-7 dana kasnije, oni obi\u010dno daju ograni\u010denu vrijednost za kontrolu procesa i pobolj\u0161anje performansi postrojenja.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-436783b elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"436783b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa5080e elementor-widget elementor-widget-text-editor\" data-id=\"fa5080e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><strong>Za rje\u0161avanje ovog problema klju\u010dno je da postrojenja za pro\u010di\u0161\u0107avanje otpadnih voda imaju prakti\u010dna i isplativa rje\u0161enja koja pru\u017eaju stalne informacije o sastavu i kvaliteti otpadnih voda.<\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-cb30211 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"cb30211\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-84b6839\" data-id=\"84b6839\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-099aa68 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"099aa68\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-db5240a\" data-id=\"db5240a\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4fca9b3 elementor-widget elementor-widget-heading\" data-id=\"4fca9b3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-large\">Automatske metode pra\u0107enja BPK<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5a4b479\" data-id=\"5a4b479\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9063d1f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9063d1f\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-a1cab3f\" data-id=\"a1cab3f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-249f302 elementor-widget elementor-widget-text-editor\" data-id=\"249f302\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong><em>Hanna Instruments je odgovor za sve va\u0161e potrebe opreme za titraciju!<\/em><\/strong><\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-9a66771 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"9a66771\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4a61168\" data-id=\"4a61168\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59122b1 elementor-widget elementor-widget-heading\" data-id=\"59122b1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">HI98198<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-070ce22 elementor-widget elementor-widget-text-editor\" data-id=\"070ce22\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Opti\u010dki mjera\u010d otopljenog kisika<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ad4bc3e elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ad4bc3e\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-inner-column elementor-element elementor-element-c4490ed\" data-id=\"c4490ed\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fe9f252 elementor-widget elementor-widget-text-editor\" data-id=\"fe9f252\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Opti\u010dki mjera\u010d otopljenog kisika HI98198 \u010dini mjerenje koncentracije otopljenog kisika vrlo jednostavnim. Opti\u010dka DO tehnologija ne zahtijeva minimalni protok, tako da ima manje odstupanja u va\u0161im o\u010ditanjima.<\/p>\n<p>Savr\u0161ena za teren ili laboratorij, sonda Quick Connect ne zahtijeva membrane, otopinu za punjenje i vrijeme zagrijavanja, tako da mo\u017eete mjeriti bez oklijevanja.<\/p>\n<p>Va\u0161 mjera\u010d dolazi kompletno opremljen u robusnom kov\u010degu za jednostavan transport.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0872820 elementor-hidden-desktop elementor-hidden-tablet elementor-widget elementor-widget-text-editor\" data-id=\"0872820\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Opti\u010dka DO tehnologija za brza i stabilna o\u010ditanja, \u010dak i u zahtjevnim okru\u017eenjima.<\/li>\n<li>Digitalna sonda s tehnologijom Smart Cap eliminira skupe, zamorne membrane i otopine.<\/li>\n<li>Vodootporno, robusno ku\u010di\u0161te s oznakom IP67 \u010dini ovaj prijenosni mjera\u010d idealnim za upotrebu na terenu.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-97339d5\" data-id=\"97339d5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bc3de9a elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"bc3de9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"720\" height=\"720\" src=\"https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI98198_C-Brighter.jpg\" class=\"attachment-full size-full wp-image-212179\" alt=\"\" srcset=\"https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI98198_C-Brighter.jpg 720w, https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI98198_C-Brighter-300x300.jpg 300w, https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI98198_C-Brighter-600x600.jpg 600w, https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI98198_C-Brighter-150x150.jpg 150w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6f1a048 elementor-align-center elementor-mobile-align-justify elementor-widget elementor-widget-button\" data-id=\"6f1a048\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-lg\" href=\"https:\/\/www.hannainst.hr\/opticki-mjerac-otopljenog-kisika-hi98198-product\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">HI98198 - KUPI<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-67a5614 elementor-hidden-mobile elementor-widget elementor-widget-text-editor\" data-id=\"67a5614\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Opti\u010dka DO tehnologija za brza i stabilna o\u010ditanja, \u010dak i u zahtjevnim okru\u017eenjima.<\/li>\n<li>Digitalna sonda s tehnologijom Smart Cap eliminira skupe, zamorne membrane i otopine.<\/li>\n<li>Vodootporno, robusno ku\u010di\u0161te s oznakom IP67 \u010dini ovaj prijenosni mjera\u010d idealnim za upotrebu na terenu.<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-98594e1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"98594e1\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-4d3803d\" data-id=\"4d3803d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78ff6d5 elementor-widget elementor-widget-heading\" data-id=\"78ff6d5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\">HI6421<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-899b8f7 elementor-widget elementor-widget-text-editor\" data-id=\"899b8f7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Napredni stolni mjera\u010d otopljenog kisika s opti\u010dkom DO sondom (opdo\u00ae)<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-b123f68 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"b123f68\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-66 elementor-inner-column elementor-element elementor-element-074d2e7\" data-id=\"074d2e7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-69f4b3b elementor-widget elementor-widget-text-editor\" data-id=\"69f4b3b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>HI6421 je aerodinami\u010dni stolni mjera\u010d s velikim zaslonom osjetljivim na dodir, koji se sastoji od ku\u0107i\u0161ta i integriranog modula <strong>dizajniranog za mjerenje otopljenog kisika u slatkoj i slanoj vodi<\/strong>.<\/p>\n<p>HI6421 uklju\u010duje Hanninu <a href=\"https:\/\/www.hannaservice.eu\/rugged-optical-dissolved-oxygen-probe-hi764113-product\"><strong>HI764113 opti\u010dku sondu za otopljeni kisik (opdo\u00ae)<\/strong><\/a> koja se temelji na <strong>principu ga\u0161enja fluorescencije<\/strong>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ee11d34 elementor-hidden-desktop elementor-hidden-tablet elementor-widget elementor-widget-text-editor\" data-id=\"ee11d34\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Imobilizirani luminofor na bazi Pt pobu\u0111en je svjetlo\u0161\u0107u plave LED diode i emitira crvenu svjetlost <\/li>\n<li>Kako kisik stupa u interakciju s luminoforom, smanjuje se intenzitet i \u017eivotni vijek luminiscencije <\/li>\n<li>\u017divotni vijek luminiscencije mjeri se fotodetektorom i koristi se za izra\u010dunavanje koncentracije otopljenog kisika<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-046cbce\" data-id=\"046cbce\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7f0590c elementor-widget__width-initial elementor-widget elementor-widget-image\" data-id=\"7f0590c\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"720\" height=\"720\" src=\"https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI6421P-Left-Low.jpg\" class=\"attachment-full size-full wp-image-212186\" alt=\"\" srcset=\"https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI6421P-Left-Low.jpg 720w, https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI6421P-Left-Low-300x300.jpg 300w, https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI6421P-Left-Low-600x600.jpg 600w, https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2023\/07\/HI6421P-Left-Low-150x150.jpg 150w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b840978 elementor-align-center elementor-mobile-align-justify elementor-widget elementor-widget-button\" data-id=\"b840978\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-lg\" href=\"https:\/\/www.hannainst.hr\/advanced-dissolved-oxygen-meter-with-optical-do-probe-opdor-hi6421-product\" target=\"_blank\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">HI6421 - KUPI<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-f466e74 elementor-hidden-mobile elementor-widget elementor-widget-text-editor\" data-id=\"f466e74\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<ul>\n<li>Imobilizirani luminofor na bazi Pt pobu\u0111en je svjetlo\u0161\u0107u plave LED diode i emitira crvenu svjetlost <\/li>\n<li>Kako kisik stupa u interakciju s luminoforom, smanjuje se intenzitet i \u017eivotni vijek luminiscencije <\/li>\n<li>\u017divotni vijek luminiscencije mjeri se fotodetektorom i koristi se za izra\u010dunavanje koncentracije otopljenog kisika<\/li>\n<\/ul>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-0dafa63 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"0dafa63\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-7e0bc4a\" data-id=\"7e0bc4a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cfc8037 elementor-widget elementor-widget-text-editor\" data-id=\"cfc8037\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<h3 style=\"text-align: center;\"><strong>Imate pitanje?<\/strong><\/h3>\n<p style=\"text-align: center;\">Obratite se na\u0161oj tehni\u010dkoj slu\u017ebi na <a class=\"keychainify-checked\" href=\"mailto:info@hannaservice.eu\"><strong>info@hannainst.hr<\/strong><\/a> ili pomo\u0107u na\u0161eg <strong><a href=\"https:\/\/www.hannaservice.eu\/contact-us\" target=\"_blank\" rel=\"noopener\" data-wplink-edit=\"true\">kontakt obrasca<\/a><\/strong>.<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-45cdbbf elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"45cdbbf\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-9599fb3\" data-id=\"9599fb3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0220f9a elementor-widget elementor-widget-text-editor\" data-id=\"0220f9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><strong>IZVORI:<\/strong><\/p>\n<p style=\"padding-left: 40px;\"><a href=\"https:\/\/www.researchgate.net\/profile\/Sulivan-Jouanneau-2\">Sulivan Jouanneau<\/a>, <em>Methods for assessing biochemical oxygen demand (BOD)<\/em>, November 2013<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2ad3b05 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2ad3b05\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-d586a43\" data-id=\"d586a43\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-3aeaa18 elementor-widget elementor-widget-image\" data-id=\"3aeaa18\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"252\" height=\"74\" src=\"https:\/\/blog.hannaservice.eu\/wp-content\/uploads\/2022\/08\/Logo-Hanna-Inst.jpg\" class=\"attachment-large size-large wp-image-177341\" alt=\"\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-67b6171 elementor-widget elementor-widget-text-editor\" data-id=\"67b6171\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>With Great Product<br \/>Come Great Results<\/p>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-207f3ef\" data-id=\"207f3ef\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-a6e7efc elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a6e7efc\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-600ebbc\" data-id=\"600ebbc\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-9c06b4b elementor-widget elementor-widget-heading\" data-id=\"9c06b4b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Servis <\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-40825b7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"40825b7\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-8b5544a\" data-id=\"8b5544a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-fcd9fa6 elementor-widget elementor-widget-heading\" data-id=\"fcd9fa6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Trening<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f420710 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f420710\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-ba8d3f6\" data-id=\"ba8d3f6\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7821cc6 elementor-widget elementor-widget-heading\" data-id=\"7821cc6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Popravak<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-8fe4ae9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8fe4ae9\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-8c4d98f\" data-id=\"8c4d98f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8d809f1 elementor-widget elementor-widget-heading\" data-id=\"8d809f1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Odr\u017eavanje<\/h2>\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>Biolo\u0161ka potro\u0161nja kisika (BPK), mjera je koli\u010dine otopljenog kisika (DO) koju koriste aerobni mikroorganizmi pri [&hellip;]<\/p>\n","protected":false},"author":17,"featured_media":212160,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"default","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center 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center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[382],"tags":[],"class_list":["post-212474","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-industrija-hr"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Razumijevanje va\u017enosti BPK: mjerenje razine kisika u vodi - Hanna Instruments Hrvatska<\/title>\n<meta name=\"description\" content=\"Biolo\u0161ka potro\u0161nja kisika zna\u010dajan je parametar u procjeni kvalitete vode. Hanna Instruments je odgovor za sve va\u0161e potrebe opreme za titraciju!\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blog.hannaservice.eu\/hr\/razumijevanje-vaznosti-bpk-mjerenje-razine-kisika-u-vodi\/\" \/>\n<meta property=\"og:locale\" content=\"hr_HR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kako odabrati pravu elektrodu za svoj uzorak?\" \/>\n<meta property=\"og:description\" content=\"UZORCI MOGU BITI TE\u0160KI, ALI MJERENJE MO\u017dE BITI LAKO. Dobivanje ispravnih i stabilnih vrijednosti mo\u017ee, me\u0111utim, biti te\u0161ko, posebno u nekim uzorcima (kao \u0161to su hrana, zemlja, kreme, boje, uzorci s visokim pH, itd.). Va\u017eno je razumjeti \u0161to pH zna\u010di kako radi pH elektroda i kako mjerenje mo\u017ee biti lak\u0161e kori\u0161tenjem prave elektrode. Niste sigurni koja bi elektroda bila najbolja za va\u0161 uzorak? 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