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Ayyukan Sabunta Kayan Jiyya na Najasa a Kauyen Jingyu, gundumar Huairou
Fasahar aiki: Anoxic + anaerobic + aerobic (modulu na bayani mai zurfi) + tace BAF
Lokacin kammalawa: Janairu, 2023
Gabatarwar aikin: An gina tashoshin kula da najasa na kauyuka hudu na gundumar Huairou, wadanda suka hada da kauyen Dafanmayu, kauyen Liangjiayu, kauyen Lijiayu da kuma kauyen Jingyu.