1. Nhazi nke teknụzụ ọgwụgwọ mmiri na-adịghị ndụ na uru na ọghọm ya: A na-ekekarị usoro ọgwụgwọ ndu nke nsị n'ime usoro sludge na-arụ ọrụ maka uto nkwusioru na usoro biofilm maka uto mgbakwunye. Uru nke usoro sludge na-arụ ọrụ bụ na usoro ahụ tozuru okè, usoro usoro ahụ dị mfe iji dozie ya, na àgwà ndị na-asọ asọ dị mma, na ọtụtụ ụlọ ọrụ nsị mmiri na-eji usoro sludge arụ ọrụ, na adịghị ike bụ na olu nke mmeghachi omume. Ọdịdị dịtụ ukwuu, nke fọdụrụ sludge bụ ihe, na sludge dị mfe aza.
Uru nke usoro biofilm siri ike na-eguzogide mmetụta ibu, olu reactor dị ntakịrị, mgbasawanye sludge agaghị eme, na sludge fọdụrụnụ bụ obere, na mwepu bụ na effluent mmiri àgwà dị ntakịrị ogbenye, karịsịa mgbe mmiri. àgwà na ọnụ ọgụgụ dị ukwuu na-agbanwe nke ukwuu, biofilm na-agbapụ nke ukwuu, na àgwà mmiri na-agbanwe nke ukwuu.
2. Omenala A / O ma ọ bụ A2 / O biological denitrification theory: amonia nitrogen na nsị anụ ụlọ na-agbanwe ka ọ bụrụ nitrate na nitrite site na nje bacteria autotrophic nitrifying na oxygen dị ka onye na-anabata electron n'oge usoro nitrification, mgbe ahụ, nitrate na nitrite na-ebelata ka gas. site na heterotrophic denitrifying nje bacteria iji mebie nsị mmiri. N'ihi na nje bacteria nitrifying nwere ikike ikuku siri ike, usoro nitrification aghaghị ịbụ aerobic, ebe nje bacteria na-agbagha agbagha na-eji oxygen dị ka onye na-anabata electron na-eme ume iku ume n'okpuru ọnọdụ ikuku, na naanị na steeti anaerobic ka ha na-eji nitrate ma ọ bụ nitrite dị ka onye na-anabata electron. iji nweta ume iji synthesize ahụ cell, ya mere, omenala denitrifying bacteria nwere ike na-ebu denitrification na anoxic gburugburu ebe obibi. Usoro denitrification nke ọdịnala nke usoro ihe ọmụmụ nke e mepụtara dị ka nkwupụta a dị n'elu na-ekewa tankị anaerobic (faultative) na tankị ikuku, nke na-eduga n'ịhazi adịghị ike dị ka usoro ogologo oge, ntinye ego dị elu, usoro mgbagwoju anya na ịrụ ọrụ, na mkpa ịgbakwunye carbon. isi mmalite nke denitrification tank.
3. MBBR technology: MBBR bụ ụdị ọhụrụ nke elu-arụmọrụ reactor na-ejikọta uru nke sludge usoro na biofilm usoro, na-emeri adịghị ike nke abụọ, na isi technology bụ: họrọ a kwụsịtụrụ ndu ụgbọelu na magburu onwe arụmọrụ na. tinye aerobic denitrification nje bacteria na aeration mpaghara, nke mere na-aghọta aerobic nitrification na denitrification na oge na ohere, na-agbaji site na omenala. A/O ma ọ bụ A2/O tiori denitrification nke ndu na teknụzụ.