Ukuphelelwa amanzi kodaka kuyingxenye ebalulekile yenqubo yokwelapha indle. Inhloso yayo ukususa amanzi odakeni ngempumelelo, ukuze inani lodaka libe lincane, futhi izindleko zokulahla kanye nendawo yomhlaba kuncishiswe. Kule nqubo, ukukhethwa kweI-Flocculantkuyisihluthulelo, kanye ne-PolyDADMAC, njengendlela ephumelelayoI-flocculant ye-Cationic Polymer, idlala indima ebaluleke kakhulu.
Okokuqala, sidinga ukuqonda ukwakheka kanye nezakhiwo zedaka. Idaka liyidaka eliqinile elikhiqizwa kakhulu ngesikhathi sokwelashwa kwendle. Liqukethe izingxenye eziyinkimbinkimbi njengemfucumfucu ephilayo, amaqembu amagciwane, izinhlayiya ezingaphili kanye nama-colloid. Idaka eliqinile elilengayo kudaka liyashajwa kabi futhi liyaxoshana, kuyilapho amanzi egcwalisa phakathi kwedaka eliqinile, ngakho-ke okuqukethwe kwamanzi okuqala kodaka kungafinyelela ku-95%. Uma loludaka lungalungiswa ngesikhathi, luzobangela ukungcola kwesibili emvelweni. Ngakho-ke, indlela yokwenza ngempumelelo ukususwa kwamanzi kudaka sekuyindaba ebalulekile emkhakheni wokwelashwa kwendle.
Enqubweni yokususa amanzi odakeni,Ama-flocculant okususa amanzi odakaiyisici esibalulekile esithonyayo. I-flocculant ihlanganisa izinhlayiya ezincane kudoti zibe izinhlayiya ezinkulu ngokusebenzisa ukungathathi hlangothi kukagesi, ukubopha i-adsorption, njll., okusheshisa inqubo yayo yokwakheka kwenhlabathi kanye nokuphelelwa amanzi. Njengomkhiqizo wamakhemikhali osetshenziswa ngokukhethekile ekwelapheni amanzi amdaka kanye nokuphelelwa amanzi kodoti, i-PolyDAMAC isebenza kahle ekuphelelweni kwamanzi kodoti ngenxa yesakhiwo sayo esiyingqayizivele sama-molecule kanye nobuningi beshaja.
Isakhiwo sama-molecule se-PolyDADMAC siyinika amandla aphezulu okushisa kanye nezakhiwo ezinhle kakhulu zokumunca. Ngesikhathi senqubo yokuphelelwa amanzi kodaka, i-PolyDADMAC ingamunca ngokushesha ebusweni bezinhlayiya zodaka, inciphise amandla acindezelayo phakathi kwezinhlayiya ngokusebenzisa ukungathathi hlangothi kukagesi, futhi ikhuthaze ukwakheka kwama-floc amakhulu phakathi kwezinhlayiya. Ngesikhathi esifanayo, amaketanga ama-molecule e-PolyDADMAC nawo angakha isakhiwo senethiwekhi esisebenzayo, ebamba izinhlayiya eziningi zodaka ndawonye, ecindezela amanzi aphume phakathi kwezinhlayiya zodaka, futhi akhe amaqoqo okulula ukuwamunca, ukuze umthamo wamanzi wehliswe ube ngu-60-80% noma ngaphansi, futhi umthamo ungancishiswa ngo-75-87%.
Uma kuqhathaniswa nama-flocculant endabuko angaphili, i-PolyDAMAC inesisindo esiphezulu sama-molecule kanye nobuningi bokushaja, okwenza ibe nekhono elinamandla lokufloccula. Ngaphezu kwalokho,I-PolyDADMACIsebenza kahle kakhulu ekuncibilikeni, kulula ukuyisebenzisa, futhi ayikhiqizi ukungcola kwesibili. I-PD ngokwayo ayikhiqizi ukuchitheka kwenhlabathi njenge-alum, ngakho-ke inani le-sludge eyengeziwe lingancishiswa. Lezi zinzuzo zenza i-PolyDADMAC ibe namathuba amaningi okusetshenziswa emkhakheni wokukhipha amanzi e-sludge.
Isakhiwo sama-molecule se-PolyDADMAC siyinika ukushaja okuphezulu kanye nezakhiwo ezinhle kakhulu zokumunca. Amaqembu amaningi e-cationic ku-chain yayo yama-molecule angasabela namaqembu e-anionic ebusweni bezinhlayiya ze-sludge ukuze akhe izibopho ze-ionic ezizinzile, okuholela ekumunceni okuqinile. Lokhu kumunca akusizi nje kuphela ukunciphisa ukuxosha phakathi kwezinhlayiya, kodwa futhi kusiza ekwakheni ama-floc amakhulu.
Ngaphezu kwesakhiwo sama-molecule kanye nezakhiwo zokushaja ze-PolyDADMAC, ukuhlushwa kwayo kanye nomthamo nakho kuyizinto ezibalulekile ezithinta umphumela wokuphelelwa amanzi kodaka. Ngaphakathi kobubanzi obuthile, njengoba ukuhlushwa kwe-PolyDADMAC kwanda noma umthamo ukhuphuka, ukusebenza kokukhipha amanzi kodaka kungathuthukiswa. Kodwa-ke, ukuhlushwa okuphezulu kakhulu noma umthamo kungaholela emphumeleni ophambene, okuholela ekuvikelweni kwe-colloid, okunciphisa umphumela wokuphelelwa amanzi. Ngakho-ke, ekusetshenzisweni okungokoqobo, ukuhlolwa kanye nokwenza ngcono kudingeka kwenziwe ngokuya ngohlelo oluthile lokwelapha indle kanye nezakhiwo zodaka ukuze kunqunywe ukuhlushwa kanye nomthamo we-PolyDADMAC ofanele.
Isikhathi sokuthunyelwe: Septhemba-26-2024