Yin hukunci daga bayanan tallace-tallace na baya-bayan nan, adadin umarni da aka samu ta hanyar Kariyar Muhalli na Liding don kayan aikin AAO ya kasance mai girma. Wadanne abubuwa ne ke sa abokan ciniki su amince da wannan tsari? Na gaba, Liding Environmental Protection zai gabatar da ainihin tsarin AAO.
Jigon tsarin AAO shine yin amfani da nitrification da denitrification na kwayoyin halitta a ƙarƙashin yanayi daban-daban don cimma nasarar kawar da nitrogen, da kuma amfani da kwayoyin da ke tattare da phosphorus don cire phosphorus. Sabili da haka, wannan tsari ya fi dacewa da ayyukan tare da kulawa mai tsanani na nitrogen da phosphorus pollutants. Babban ayyuka na ƙauyuka na kayan aikin kula da najasa na cikin gida na tsarin AAO sun mayar da hankali a cikin nau'o'in amsawa guda uku, wanda shine tafkin anaerobic, tafkin anoxic da tafkin aerobic.
A cikin anaerobic dauki yankin, saboda rashin nitrate da oxygen a cikin najasa na cikin gida najasa kayan aikin gida, phosphorus tarawa kwayoyin adana makamashi a cikin phosphorus-tarrawar mahadi da saki phosphate radicals a lokaci guda, yayin da sauran kwayoyin ba sa aiki. . A cikin wannan tsarin amsawa Sauran ƙwayoyin cuta ba su da aiki kuma suna da wahalar girma. Ana amfani da tsarin amsawar anaerobic don rage COD da shirya don cire phosphorus.
A cikin tsarin maganin anoxic, najasa na kayan aikin kula da najasa na cikin gida yana da adadin nitrate ba tare da iskar oxygen ba, kuma masu hana ƙwayoyin cuta suna amfani da COD don rage nitrate zuwa nitrogen, sakin alkali, da samun kuzari don girma. Rage COD da nitrate nitrogen.
Na'urar daukar hoto ta aerobic ita ce ainihin yankin dauki na kayan aikin kula da najasa na cikin gida. Anan, kwayoyin nitrifying oxidize ammonia nitrogen zuwa nitrate nitrogen, cinye alkalinity da oxygen, PAOs suna shayar da adadin phosphorus mai yawa, suna amfani da makamashi a cikin PHA don haɗa polyphosphorus, kuma OHOs suna ci gaba da cire COD, PAOs, OHOs, da kwayoyin nitrifying duk suna girma. a cikin wannan tsari. Rage COD, ammonia nitrogen da phosphorus.
Daga binciken da ake buƙata na ayyukan kula da najasa na cikin gida, zaɓin tsarin kula da najasa ya kamata ya dace da buƙatun ma'aunin jiyya, halayen najasa, ingancin ruwa mai ƙazanta da fitar da ruwa. A lokaci guda, ya kamata a zaɓi tsarin kulawa da ya dace bisa ga halaye na najasa na gida. Yawancin lokuta suna nuna cewa AAO kayan aikin kula da najasa na karkara yana da kyakkyawar daidaitawa ga nau'ikan ayyuka daban-daban.
Lokacin aikawa: Yuli-06-2023