1. Rarraba fasahar kula da najasa na halitta da fa'ida da rashin amfaninsa: Hanyar jiyya ta ilimin halitta na najasa yawanci ana raba shi zuwa hanyar sludge mai kunnawa don haɓakar dakatarwa da kuma hanyar biofilm don haɓaka haɗe-haɗe. Abubuwan da ake amfani da su na hanyar sludge mai kunnawa shine cewa tsarin ya balaga, sigogin tsari suna da sauƙi don daidaitawa, kuma ingancin ƙazanta yana da kyau, kuma yawancin tsire-tsire masu kula da ruwa suna amfani da hanyar sludge da aka kunna, kuma rashin amfani shine cewa ƙarar amsawa. tsarin yana da girma, ragowar sludge ya fi yawa, kuma sludge yana da sauƙi don kumbura.
Abubuwan da ake amfani da su na hanyar biofilm suna da ƙarfin juriya ga tasirin tasiri, ƙarar reactor kadan ne, haɓakar sludge ba zai faru ba, kuma ragowar sludge ya ragu, kuma rashin amfani shine cewa ingancin ruwa mai tsabta ya dan kadan, musamman lokacin da ruwa. inganci da yawa suna canzawa sosai, biofilm ya fi guntu, kuma ingancin ruwa yana canzawa sosai.
2. Traditional A/O ko A2/O nazarin halittu denitrification ka'idar: ammonia nitrogen a cikin gida najasa yana canzawa zuwa nitrate da nitrite ta autotrophic nitrifying kwayoyin cuta tare da oxygen a matsayin electron karɓa a lokacin nitrification tsari, sa'an nan kuma nitrate da nitrite sun zama iskar gas. ta hanyar heterotrophic denitrifying kwayoyin cuta don hana najasa. Saboda kwayoyin nitrifying suna da karfin motsa jiki, tsarin nitrification dole ne ya zama mai motsa jiki, yayin da kwayoyin halitta na al'ada suna amfani da oxygen a matsayin mai karɓar electron don aiwatar da numfashi a cikin yanayin iska, kuma kawai a yanayin anaerobic suna amfani da nitrate ko nitrite a matsayin mai karɓar lantarki. don samun makamashi don haɗa jikin tantanin halitta, don haka ƙwayoyin cuta na al'ada na al'ada zasu iya aiwatar da denitrification kawai a cikin yanayin anoxic. Tsarin denitrification na al'ada na al'ada da aka haɓaka bisa ga ka'idar da ke sama ya raba tankin anaerobic (faultative) daga tanki na aerobic, wanda ke haifar da aiwatar da gazawar kamar tafiyar da tsari mai tsawo, babban zuba jarurruka na kayan aiki, tsarin aiki mai rikitarwa da aiki, da kuma buƙatar haɓaka carbon. tushen zuwa tanki denitrification.
3. Fasahar MBBR: MBBR sabon nau'in reactor ne mai inganci wanda ya haɗu da fa'idodin hanyar sludge da aka kunna da hanyar biofilm, kuma yana shawo kan gazawar biyun, kuma ainihin fasaharsa shine: zaɓi wani jirgin ruwa da aka dakatar tare da kyakkyawan aiki kuma ƙara aerobic denitrification kwayoyin cuta a cikin aeration yankin, don gane aerobic nitrification da denitrification a lokaci da sarari, da kuma karya ta hanyar gargajiya. A/O ko A2/O ka'idar denitrification na nazarin halittu da fasaha.