Ukwahlulela kusuka kwimininingwane yokuthengisa yakamuva, inani lama-oda atholwe ngokuvikelwa kwezemvelo kwezemvelo zemishini yenqubo ye-AAO ihlala iphakeme. Yiziphi izinto ezenza amakhasimende athembele le nqubo kakhudlwana? Okulandelayo, ukuvikelwa kwezemvelo okuhambisa ukuhambisa kwezethulo kuzokwethula umnyombo wenqubo ye-AAO.
Umgogodla wenqubo ye-AAO ukusebenzisa i-nitrification kanye nokuchazwa kwezinto eziphilayo ngaphansi kwezimo ezahlukahlukene ukufezekisa ukususwa kwe-nitrogen, futhi usebenzise amagciwane aqongelela ama-phosphorus ukususa iPhosphorus. Ngakho-ke, le nqubo ilungele kakhulu amaphrojekthi ngokulawulwa okuqinile kokungcola kwe-nitrogen kanye ne-phosphorus. Imisebenzi esemqoka yemishini yokwethulwa kwendle yasemakhaya yenqubo ye-AAO igxile kumamojula amathathu wokuphendula, okuyinto echibini le-anaerobic, ichibi le-anoxic nechibi le-aerobic.
Endaweni yokuphendula ye-anaerobic, ngenxa yokuntuleka kwe-nitrate ne-oxygen ekukhuculweni kwendle kwemishini yokwethulwa kwendle yasemakhaya, ama-phosphorus aqoqa ama-bacteria esitolo amandla kuma-phosphorus-aqongelela ama-comples ngasikhathi sinye, kanti amanye ama-bacteria awasebenzi. Kule modyuli yokuphendula amanye ama-bacterium akhuthele futhi kunzima ukukhula. Imodyuli yokuphendula ye-anaerobic isetshenziselwa ukwehlisa i-COD futhi ilungiselele ukususwa kwe-phosphorus.
Emotweni yokuphendula ye-anoxic, indle yemishini yokwethulwa kwendle yasemakhaya inenani elithile le-nitrate ngaphandle komoya-mpilo, futhi ukunqabela amagciwane okusetshenziswa kwe-COD ukunciphisa i-nitrate ku-nitrogen, khipha i-alkali, futhi uthole amandla okukhula. Yehlisa i-COD ne-nitrate nitrogen.
Imodyuli yokuphendula ye-Aerobic iyindawo yokusabela okuyisisekelo yemishini yokwethulwa kwendle yasemakhaya yasemakhaya. Lapha, ama-bacteria ama-bacterio oxidiam ammonia nitrogen ukuze anikele i-nitrogen, adle i-alkalinity nomoya-mpilo, ama-ahos amunca i-Phosphorus, futhi ahos aqhubeke nokususa i-Cod, ama-PAO, ama-bacterium ama-nitrises wonke atshalwa kule nqubo. Yehlisa i-COD, i-ammonia nitrogen ne-phosphorus.
Ukusuka ekuhlaziyweni kwesidingo samaphrojekthi wokwethulwa kwendle olwandle, ukukhethwa kwenqubo yokwelashwa kwendle kufanele kuhlangabezane nezidingo zezilinganiso zokwelashwa, izici zendle, ikhwalithi yamanzi ende kanye nomzimba wamanzi wokukhipha. Ngasikhathi sinye, inqubo efanele yokwelashwa kufanele ikhethwe ngokuya ngezimpawu zokukhucululwa ukuze kwendle. Amacala amaningi akhombisa ukuthi imishini yokwelashwa kwendle ye-AAO yasemakhaya inokuguqulwa okuhle kwezinhlobo ezahlukene zamaphrojekthi.
Isikhathi sePosi: Jul-06-2023