Wurin shara na Changshengqiao wuri ne na zubar da shara na kwarin da ke da fadin ƙasa 690,642 m ³ , wurin zubar da shara mai kusan 379,620 m ³ da kuma damar zane na kimanin miliyan 14 ³ . An fara aiki da wurin da ake zubar da shara a karshen watan Yulin 2003 kuma an rufe shi a karshen shekarar 2016. Tun a shekarar 2018 ake ci gaba da rufewa da kuma gyara wurin.

Wurin kula da leachate na yanzu a Changshengqiao Landfill an tsara shi azaman kayan aikin 1,730 ton/d, wanda ya ƙunshi tsarin 400 ton/d MBR + DTRO da tsarin kula da gaggawa na 1,330 ton/d STRO. A halin yanzu, tsarin MBR+DTRO yana samar da kusan tan 100 na leachate tattara a kowace rana, kuma wurin STRO yana samar da kusan tan 400 na maida hankali kowace rana. Abubuwan da aka samar ana haɗe su kuma ana adana su a cikin tafkin daidaitawa a cikin wurin zubar da ƙasa, wanda kusan m 38,000. ³ ana adana su a cikin rumbun ajiya kuma kusan 140,000 m ³ ana adana su a wajen rumbun ƙasa. Ƙarfin ajiya na wurin ya kusa cika, tare da fitattun haɗarin muhalli.

Tsarin kula da hankali na leachate a cikin wannan aikin ya ƙunshi maida hankali biyu ne, ɗaya shine MBR+DTRO mai da hankali tare da ingantaccen magani na biochemical, ɗayan kuma shine STRO mai da hankali ba tare da maganin biochemical ba. Ingancin ruwa na abubuwan tattarawa guda biyu sun bambanta sosai, kuma abin da ake amfani da shi na wannan aikin yana haɗuwa da haɗuwa.

Cikakkun jiyya na tattara ruwa a cikin shara a cikin watanni 3 na aikin hukuma.

Cikakkun jiyya na tattara ruwa a ciki da wajen wuraren da ake zubar da shara a cikin watanni 18 na aikin hukuma.

Yana aiwatar da sabon leachate yana maida hankali lokaci guda a kullum.

Dangane da rahoton ingancin ruwa na samfurin ruwa da kuma gogewar da kamfaninmu ya samu a irin wannan ayyuka, ƙirar samar da ingancin ruwan wannan aikin shine kamar haka:

Tsarin jiyya na ZLD 1,000 m³/d
Pretreatment + Tattarawa + Haɓakawa + Desiccation

Ƙaddamar da hankali a cikin tankin daidaitawa ya ƙunshi daskararru da aka dakatar (SS) kuma yana da tauri mai girma. Dukansu biyu suna buƙatar cire su ta hanyar laushi da TUF pretreatment.

Ana kula da zubar da ruwa daga laushi ta hanyar membrane na abu. Zaɓin membrane na kayan ya dogara da nauyin kwayoyin da ya dace. Bisa ga sakamakon gwaji, za'a iya yanke shawarar nauyin kwayoyin da ya dace. A wannan yanayin, wani ɓangare na colloid da macromolecular kwayoyin al'amurran za a iya selectively watsi da zaba abu membrane ba tare da ƙin taurin da salinity. Wannan na iya samar da yanayi mai kyau don aikin HPRO da MVR. Bayan haka, tsarin yana iya dawo da 90-98% tare da ƙananan matsa lamba saboda halayen membrane. Bugu da ƙari, ƙaramin adadin hankali ana ƙara bi da shi ta hanyar lalatawa.

Abubuwan da ke fitowa daga memtrane na kayan abu sun tattara ta HPRO. Tun lokacin da HPRO ta karɓi tsarin membrane na rigakafin gurɓataccen gurɓataccen abu, zai iya tattara ɗanyen ruwa sosai, yana rage adadin ruwan da aka ƙafe. Don haka, za a iya ajiyewa gabaɗayan saka hannun jari da farashin aiki.

Ƙimar daɗaɗɗa daga ƙwayar kayan abu yana da kyau don rage yawan adadin maganin kumfa da aka yi amfani da shi a cikin tsarin evaporation na MVR. Wannan zai iya kawar da yanayin kumfa yadda ya kamata. Bugu da ƙari, gishiri ba za a iya nannade shi ta hanyar kwayoyin halitta ba, wanda ke da amfani ga barga da ci gaba da ƙazantaccen ƙura. Bayan haka, tun da tsarin MVR na iya aiki a cikin yanayin acidic tare da matsa lamba mara kyau da ƙarancin zafin jiki, ana iya hana haɓakar haɓakawa da lalata sabon abu. Har ila yau, kumfa yana da wuyar haifar da shi, yana haifar da kyakkyawan ƙaƙƙarfan ƙaƙƙarfan ƙashin ƙugu. Matsakaicin MVR yana komawa zuwa tsarin membrane don ƙarin jiyya kafin fitarwa. Ana kula da brine daga MVR ta hanyar desiccation.

Akwai nau'ikan sludge iri uku da aka samar a cikin wannan aikin, waɗanda ke buƙatar kulawa. Su ne inorganic sludge daga pretreatment, da brine sludge daga evaporation crystallization da sludge daga desiccation.

An sanya hannu kan kwangilar a watan Nuwamba, 2020. An shigar da kayan aikin da ke da karfin jiyya 1000 m³/d a cikin Afrilu, 2020. Ana iya ɗaukar aikin Jiarong Changshengqiao maida hankali na ZLD a matsayin maƙasudin masana'antar WWT.