Enwere ike itinye flocculant n'ime ọdọ mmiri MBR akpụkpọ ahụ?

Site na mgbakwunye nke polydimethyldiallylammonium chloride (PDMDAAC), polyaluminum chloride (PAC) na ihe mejupụtara flocculant nke abụọ na arụ ọrụ na-aga n'ihu nke membrane bioreactor (MBR), a nyochara ha iji belata MBR. Mmetụta nke imebi akpụkpọ ahụ. Nnwale ahụ na-atụle mgbanwe nke okirikiri ọrụ MBR, oge mmịpụta mmiri sludge capillary (CST), ikike Zeta, sludge volume index (SVI), nkesa sludge floc nha na ọdịnaya polymer extracellular na paramita ndị ọzọ, wee lelee reactor dị ka Mgbanwe nke sludge na-arụ ọrụ n'oge a na-arụ ọrụ, ọnụọgụ atọ mgbakwunye na usoro onunu ogwu bụ nke kacha mma na obere flocculation usoro ekpebiela.

Nsonaazụ ule na-egosi na flocculant nwere ike ibelata mmebi akpụkpọ ahụ nke ọma. Mgbe agbakwunyere flocculants atọ dị iche iche n'otu usoro ọgwụgwọ, PDMDAAC nwere mmetụta kachasị mma na ibelata mmetọ akpụkpọ ahụ, sochiri flocculants composite, yana PAC nwere mmetụta kachasị njọ. N'ule nke mgbakwunye usoro onunu ogwu na ọnọdụ etiti oge, PDMDAAC, composite flocculant, na PAC niile gosiri na mgbakwunye na usoro onunu ogwu dị irè karịa doses n'ibelata mmetọ akpụkpọ ahụ. Dabere na mgbanwe mgbanwe nke nrụgide transmembrane (TMP) na nnwale ahụ, enwere ike ikpebi na mgbe mgbakwunye mbụ nke 400 mg / L PDMDAAC gasịrị, mgbakwunye kacha mma bụ 90 mg / L. Usoro ọgwụgwọ kachasị mma nke 90 mg/L nwere ike ịgbatị ogologo oge ọrụ MBR na-aga n'ihu, nke bụ ugboro 3.4 karịa nke reactor na-enweghị flocculant mgbakwunye, ebe ezigbo mgbakwunye PAC bụ 120 mg/L. Ihe mejupụtara flocculant mejupụtara PDMDAAC na PAC nwere oke nha nke 6:4 nwere ike ọ bụghị naanị ibelata mmebi akpụkpọ ahụ nke ọma, kamakwa belata ụgwọ ọrụ nke iji PDMDAAC naanị kpatara. N'ijikọta usoro uto nke TMP na mgbanwe nke uru SVI, enwere ike ikpebi na usoro kachasị mma nke mgbakwunye flocculant mejupụtara bụ 60mg/L. Mgbe ịgbakwunye flocculant, ọ nwere ike belata 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 na-arụ ọrụ na-agbagharị nke ọma karị, na elu nke modul akpụkpọ ahụ The kpụrụ nyo achicha oyi akwa na-aghọ thinner, ịgbatị ọrụ oge nke MBR n'okpuru mgbe nile eruba. The flocculant enweghị ihe doro anya mmetụta na MBR efluent mmiri mma. The MBR reactor nwere PDMDAAC nwere nkezi ọnụego mwepụ nke 93.1% na 89.1% maka COD na TN, n'otu n'otu. Ọnụ ọgụgụ nke nsị dị n'okpuru 45 na 5mg / L, na-eru ọkwa mbụ A. ọkọlọtọ.

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