Site na mgbakwunye nke polydimethyldiallylammonium chloride (PDMDAAC), polyaluminum chloride (PAC) na flocculant nke abụọ ahụ n'ọrụ na-aga n'ihu nke membrane bioreactor (MBR), a nyochara ha iji belata MBR. Mmetụta nke ntụpọ akpụkpọ ahụ. Nnwale a na-atụ mgbanwe nke okirikiri ọrụ MBR, oge nnabata mmiri sludge capillary (CST), ikike Zeta, ndeksi olu sludge (SVI), nkesa nha nke sludge floc na ọdịnaya polymer extracellular na paramita ndị ọzọ, ma lelee reactor ahụ. Dịka mgbanwe nke sludge arụ ọrụ n'oge ọrụ si dị, achọpụtala usoro atọ na usoro dose nke kacha mma na obere dose flocculation.
Nsonaazụ ule ahụ gosiri na ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka akpụkpọ ahụ ghara ịdị mma nke ọma. Mgbe etinyere ihe atọ dị iche iche n'otu dose ahụ, PDMDAAC nwere mmetụta kachasị mma n'ibelata mmetọ akpụkpọ ahụ, soro ya na ihe ndị na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe ghara ịdị mma, PAC nwekwara mmetụta kacha njọ. N'ule nke usoro ọgwụgwọ na usoro ọgwụgwọ, PDMDAAC, ihe ndị na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe ghara ịdị mma, na PAC niile gosiri na usoro ọgwụgwọ ọzọ dị irè karịa usoro ọgwụgwọ ahụ n'ibelata mmetọ akpụkpọ ahụ. Dịka mgbanwe nke nrụgide transmembrane (TMP) si dị na nnwale ahụ, enwere ike ịchọpụta na mgbe etinyere 400 mg/L PDMDAAC mbụ, usoro ọgwụgwọ kachasị mma bụ 90 mg/L. Usoro ọgwụgwọ kachasị mma nke 90 mg/L nwere ike ịgbatị oge ọrụ MBR na-aga n'ihu nke ukwuu, nke bụ ugboro 3.4 karịa nke ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe na-eme ka ihe ghara ịdị mma, ebe usoro ọgwụgwọ ọgwụgwọ kacha mma nke PAC bụ 120 mg/L. Ngwakọta flocculant nke mejupụtara PDMDAAC na PAC nwere oke oke nke 6:4 agaghị ebelata mmerụ ahụ akpụkpọ ahụ nke ọma, kamakwa ọ na-ebelata ọnụ ahịa ọrụ nke ojiji PDMDAAC naanị kpatara. Site na ijikọta usoro uto nke TMP na mgbanwe nke uru SVI, enwere ike ịchọpụta na oke kachasị mma nke mgbakwunye flocculant mejupụtara bụ 60mg/L. Mgbe etinyere flocculant ahụ, ọ nwere ike ibelata uru CST nke ngwakọta sludge, mee ka ikike Zeta nke ngwakọta ahụ dịkwuo elu, belata uru SVI na ọdịnaya nke EPS na SMP. Mgbakwunye nke flocculant na-eme ka sludge flocculate rụọ ọrụ nke ọma, elu nke modulu membrane ahụ. Achịcha nzacha kpụrụ akpụ na-adị gịrịgịrị, na-agbatị oge ọrụ nke MBR n'okpuru mmiri na-aga n'ihu. Flocculant ahụ enweghị mmetụta doro anya na mma mmiri MBR na-ejuputa. Reactor MBR nwere PDMDAAC nwere nkezi ọnụego mwepụ nke 93.1% na 89.1% maka COD na TN, n'otu n'otu. Ọnụọgụgụ nke ihe e tinyere n'ime mmiri dị n'okpuru 45 na 5mg/L, na-eru ọkwa mbụ nke A. ọkọlọtọ.
Ihe e dere na Baidu.
Oge ozi: Nọvemba-22-2021