AO工(gong)藝一體(ti)化(hua)(hua)污水(shui)設備不僅能(neng)去(qu)(qu)處BOD5,還有(you)很好(hao)的(de)脫(tuo)(tuo)氮(dan)除(chu)(chu)磷(lin)(lin)(lin)功(gong)能(neng)。污水(shui)經A段后進(jin)(jin)入(ru)(ru)O段,有(you)機(ji)物(wu)(wu)在(zai)好(hao)氧(yang)(yang)段被好(hao)氧(yang)(yang)微生物(wu)(wu)氧(yang)(yang)化(hua)(hua)分解,氨(an)(an)氮(dan)在(zai)有(you)氧(yang)(yang)條(tiao)件(jian)下通(tong)過硝(xiao)化(hua)(hua)作用轉(zhuan)化(hua)(hua)為硝(xiao)態氮(dan),再通(tong)過混合液回流進(jin)(jin)入(ru)(ru)缺氧(yang)(yang)段在(zai)有(you)碳源條(tiao)件(jian)下,進(jin)(jin)行前(qian)置反硝(xiao)化(hua)(hua),使(shi)硝(xiao)態氮(dan)轉(zhuan)化(hua)(hua)為分子態氮(dan)而(er)逸(yi)入(ru)(ru)空氣中(zhong),從(cong)而(er)使(shi)氨(an)(an)氮(dan)得到有(you)效(xiao)的(de)去(qu)(qu)除(chu)(chu),達到同時去(qu)(qu)除(chu)(chu)BOD5和脫(tuo)(tuo)氮(dan)的(de)很好(hao)效(xiao)果(guo)。同時原污水(shui)和二沉池(chi)回流污泥一起進(jin)(jin)入(ru)(ru)到A段厭(yan)氧(yang)(yang)池(chi)中(zhong),在(zai)該階(jie)段磷(lin)(lin)(lin)被釋放出(chu)來提供(gong)聚(ju)磷(lin)(lin)(lin)菌活動所需的(de)能(neng)量,在(zai)進(jin)(jin)入(ru)(ru)氧(yang)(yang)化(hua)(hua)池(chi)后污水(shui)中(zhong)的(de)聚(ju)磷(lin)(lin)(lin)菌吸(xi)(xi)收磷(lin)(lin)(lin),再在(zai)膜池(chi)中(zhong)過濾排放去(qu)(qu)除(chu)(chu)從(cong)而(er)達到除(chu)(chu)磷(lin)(lin)(lin)效(xiao)果(guo)。在(zai)氧(yang)(yang)化(hua)(hua)反應段中(zhong)實(shi)現有(you)機(ji)物(wu)(wu)的(de)去(qu)(qu)除(chu)(chu)、氨(an)(an)氮(dan)的(de)硝(xiao)化(hua)(hua)和磷(lin)(lin)(lin)的(de)吸(xi)(xi)收去(qu)(qu)除(chu)(chu)。