Ukusetshenziswa kwe-PAC embonini Yokwenza Amaphepha

I-Polyaluminium Chloride (PAC) iyikhemikhali ebalulekile embonini yokwenza amaphepha, idlala indima ebalulekile ezigabeni ezehlukene zenqubo yokwenza iphepha. I-PAC iyi-coagulant esetshenziswa ngokuyinhloko ukuthuthukisa ukugcinwa kwezinhlayiya ezinhle, izigcwalisi, nemicu, ngaleyo ndlela ithuthukise ukusebenza kahle kanye nekhwalithi yokukhiqizwa kwephepha.

I-Coagulation kanye ne-Flocculation

Umsebenzi oyinhloko we-PAC ekwenzeni iphepha ukuhlanganisa kwayo kanye nezindawo zokuntanta. Phakathi nenqubo yokwenza iphepha, amanzi axutshwa nemicu ye-cellulose ukuze enze udaka. Lolu daka luqukethe inani elikhulu lezinhlayiya ezinhle nezinto eziphilayo ezincibilikisiwe ezidinga ukususwa ukuze kukhiqizwe iphepha eliphezulu. I-PAC, uma yengezwa ku-slurry, inciphisa izindleko ezingezinhle ezinhlayiyeni ezimisiwe, izenze zinqwabelane zibe ama-aggregate amakhulu noma ama-flocs. Le nqubo isiza kakhulu ekukhishweni kwalezi zinhlayiya ezinhle phakathi nenqubo yokukhipha amanzi, okuholela emanzini acacile nokugcinwa kwe-fiber okuthuthukisiwe.

Ukugcina Okuthuthukisiwe kanye Nokuthuthwa kwamanzi

Ukugcinwa kwemicu kanye nezigcwalisi kubalulekile ekwenzeni iphepha njengoba kuthinta ngokuqondile amandla ephepha, ukuthungwa kanye nekhwalithi iyonke. I-PAC ithuthukisa ukugcinwa kwalezi zinto ngokwenza ama-flocs amakhulu angagcinwa kalula ocingweni lomshini wephepha. Lokhu akugcini nje ngokuthuthukisa amandla kanye nekhwalithi yephepha kodwa futhi kunciphisa inani lokulahlekelwa kwempahla eluhlaza, okuholela ekongeni kwezindleko. Ngaphezu kwalokho, ukugeleza kwamanzi okuthuthukisiwe okwenziwa i-PAC kunciphisa okuqukethwe kwamanzi ephepheni, ngaleyo ndlela kunciphisa amandla adingekayo ukuze omiswe futhi kuthuthukise ukusebenza kahle okuphelele kwenqubo yokwenza iphepha.

Ukuthuthukiswa Kwekhwalithi Yephepha

Ukusetshenziswa kwe-PAC ekwenzeni iphepha kunomthelela omkhulu ekuthuthukisweni kwekhwalithi yephepha. Ngokuthuthukisa ukugcinwa kwezinhlawulo nezigcwalisi, i-PAC isiza ekukhiqizeni iphepha elinokwakheka okungcono, ukufana, kanye nezakhiwo ezingaphezulu. Lokhu kuholela ekuphrintekeni okuthuthukisiwe, ukushelela, kanye nokubukeka okuphelele kwephepha, okulenza lifaneleke kakhulu izinhlelo zokusebenza zokuphrinta nokupakisha ezisezingeni eliphezulu.

Ukwehliswa kwe-BOD kanye ne-COD Ekuhlanzeni Amanzi Angcolile Ngokwenza Amaphepha

I-Biochemical Oxygen Demand (BOD) kanye Nesidingo Se-Chemical Oxygen (COD) yizilinganiso zenani lezinto eziphilayo ezikhona emanzini angcolile akhiqizwa inqubo yokwenza iphepha. Amazinga aphezulu e-BOD ne-COD akhombisa izinga eliphezulu lokungcola, okungaba yingozi emvelweni. I-PAC yehlisa ngempumelelo amazinga e-BOD ne-COD ngokuhlanganisa nokukhipha ukungcola okuphilayo emanzini angcolile. Lokhu akusizi nje kuphela ukuhlangabezana nemithethonqubo yezemvelo kodwa futhi kunciphisa izindleko zokuhlanza ezihambisana nokuphathwa kwamanzi angcolile.

Kafushane, i-polyaluminium chloride iyisengezo esibalulekile embonini yokwenza iphepha, enikeza izinzuzo eziningi ezithuthukisa ukusebenza kahle kwenqubo yokwenza iphepha kanye nekhwalithi yomkhiqizo wokugcina. Izindima zayo ekuhlanganiseni nasekuhambiseni amanzi, ukugcinwa okuthuthukisiwe kanye nokukhipha amanzi, ukuncishiswa kwe-BOD ne-COD, kanye nokwenza ngcono isiyonke ikhwalithi yephepha kuyenza ibe yingxenye ebaluleke kakhulu ekwenzeni iphepha kwesimanje.