1. Kev faib tawm ntawm kev siv tshuab lim dej lom neeg thiab nws qhov zoo thiab qhov tsis zoo: Txoj kev kho kab mob lom ntawm cov dej phwj tuaj feem ntau yog muab faib ua cov txheej txheem activated sludge rau kev ncua kev loj hlob thiab cov txheej txheem biofilm rau kev loj hlob txuas. Qhov zoo ntawm cov txheej txheem activated sludge yog cov txheej txheem paub tab, cov txheej txheem tsis yooj yim kho, thiab cov dej ntws zoo yog qhov zoo, thiab cov dej phwj tuaj kho feem ntau siv cov txheej txheem activated sludge, thiab qhov tsis zoo yog qhov ntim ntawm cov tshuaj tiv thaiv. qauv yog qhov loj, qhov seem sludge yog ntau, thiab cov sludge yog yooj yim swell.
Qhov zoo ntawm txoj kev biofilm yog qhov muaj zog tiv thaiv kev cuam tshuam, lub ntim reactor me me, cov sludge expansion yuav tsis tshwm sim, thiab cov seem sludge tsawg dua, thiab qhov tsis zoo yog tias cov dej ntws tawm tsis zoo me ntsis, tshwj xeeb tshaj yog thaum dej. Qhov zoo thiab qhov muaj nuj nqis hloov pauv zoo heev, biofilm yog decapitated loj, thiab cov dej zoo hloov pauv tau zoo heev.
2. Ib txwm A / O lossis A2 / O biological denitrification txoj kev xav: ammonia nitrogen hauv cov kav dej hauv tsev tau hloov mus rau nitrate thiab nitrite los ntawm cov kab mob autotrophic nitrifying nrog oxygen raws li electron txais thaum lub sij hawm nitrification, thiab tom qab ntawd cov nitrate thiab nitrite raug txo kom muaj roj. los ntawm heterotrophic denitrifying kab mob los denitrify cov dej phwj tuaj. Vim hais tias cov kab mob nitrifying muaj zog aerobic, cov txheej txheem nitrification yuav tsum yog aerobic, thaum cov kab mob denitrifying siv cov pa oxygen raws li tus neeg txais hluav taws xob los ua pa tawm aerobic hauv cov xwm txheej aerobic, thiab tsuas yog nyob rau hauv lub xeev anaerobic lawv siv nitrate lossis nitrite raws li electron txais. kom tau txais lub zog los ua ke lub cev ntawm tes, yog li cov kab mob denitrifying ib txwm tuaj yeem nqa tawm denitrification hauv ib puag ncig anoxic. Cov txheej txheem biological denitrification tsim raws li cov kev xav saum toj no cais cov anaerobic (facultative) tank los ntawm lub tank aerobic, uas ua rau cov txheej txheem tsis zoo xws li cov txheej txheem ntev, kev lag luam siab, kev ua haujlwm nyuaj thiab kev ua haujlwm, thiab yuav tsum tau ntxiv carbon. qhov chaw rau lub tank denitrification.
3. MBBR technology: MBBR yog ib hom tshiab ntawm high-efficiency reactor uas sib txuas qhov zoo ntawm activated sludge method thiab biofilm txoj kev, thiab overcomes lub shortcomings ntawm ob, thiab nws cov core technology yog: xaiv ib tug suspended biological carrier nrog zoo heev kev ua tau zoo thiab Ntxiv cov kab mob aerobic denitrification hauv thaj chaw aeration, kom paub txog aerobic nitrification thiab denitrification hauv lub sijhawm thiab qhov chaw, thiab tawg los ntawm tsoos A / O lossis A2 / O biological denitrification theory thiab thev naus laus zis.