Flocculant irashobora gushirwa muri MBR membrane pisine?

Hiyongereyeho polydimethyldiallylammonium chloride (PDMDAAC), chloride polyaluminium (PAC) hamwe na flocculant ikomatanya byombi mugikorwa gikomeza cya membrane bioreactor (MBR), barakozweho iperereza kugirango bagabanye MBR. Ingaruka zo kwanduza membrane. Ikizamini gipima impinduka zikorwa rya MBR, gukora sludge capillary igihe cyo gufata amazi (CST), ubushobozi bwa Zeta, indangururamajwi yerekana ingano (SVI), ingano ya floc uduce duto duto hamwe nibice bya polymer bidasanzwe hamwe nibindi bipimo, hanyuma ukareba reaction nkuko bivugwa na impinduka za siliveri zikora mugihe cyo gukora, dosiye eshatu zinyongera nuburyo bwa dosiye nuburyo bwiza hamwe na dosiye nkeya ya flocculation.

Ibisubizo by'ibizamini byerekana ko flocculant ishobora kugabanya neza ububobere bwa membrane. Iyo flocculants eshatu zitandukanye zongewe kumupanga umwe, PDMDAAC yagize ingaruka nziza muguhashya umwanda wa membrane, ikurikirwa na flocculants, kandi PAC yagize ingaruka mbi. Mu igeragezwa rya dosiye yinyongera nuburyo bwo gutandukanya intera, PDMDAAC, flocculant ikomatanya, na PAC byose byerekanaga ko dosiye yinyongera yagize akamaro kuruta kunywa mukugabanya umwanda. Ukurikije impinduka zumuvuduko wa transembrane (TMP) mubushakashatsi, hashobora kwemezwa ko nyuma yo kongerwaho bwa mbere 400 mg / L PDMDAAC, ikinini cyiza cyiyongera ni 90 mg / L. Igipimo cyiza cyinyongera cya 90 mg / L kirashobora kongera igihe kinini cyibikorwa bikomeza bya MBR, bikubye inshuro 3,4 ibyo bya reaktor idafite flocculant yinyongera, mugihe dosiye nziza ya PAC ari 120 mg / L. Igikoresho cya flocculant kigizwe na PDMDAAC na PAC gifite igipimo rusange cya 6: 4 ntigishobora kugabanya gusa ububobere bwa membrane, ariko kandi kigabanya amafaranga yimikorere yatewe no gukoresha PDMDAAC yonyine. Ugereranije imikurire yikura rya TMP nihinduka ryagaciro rya SVI, birashobora kwemezwa ko dosiye nziza yinyongera ya flocculant yuzuye ari 60mg / L. Nyuma yo kongeramo flocculant, irashobora kugabanya agaciro ka CST yimvange ya silige, kongera Zeta ubushobozi bwuruvange, kugabanya agaciro ka SVI nibiri muri EPS na SMP. Kwiyongera kwa flocculant bituma siliveri ikora ikora neza cyane, hamwe nubuso bwa module ya module Imiterere ya filteri ya cake cake iba yoroheje, ikongerera igihe cyo gukora MBR mugihe gihoraho. Flocculant nta ngaruka zigaragara zifite ku bwiza bw’amazi ya MBR. Imashini ya MBR hamwe na PDMDAAC ifite impuzandengo yo gukuraho 93.1% na 89.1% kuri COD na TN. Ubwinshi bwimyanda iri munsi ya 45 na 5mg / L, igera kurwego rwa mbere A isohoka. bisanzwe.

Amagambo yavuye muri Baidu.