Indawo yokulahla imfucumfucu yaseChangshengqiao iyindawo ejwayelekile yokulahla imfucuza efana nesigodi nendawo eyi-690,642 m. ³ , indawo yokulahla imfucumfucu elinganiselwa ku-379,620 m ³ kanye nomthamo wokuklama ongaba yizigidi eziyi-14 m ³ . Indawo yokulahla imfucumfucu yaqala ukusebenza ekupheleni kukaJulayi 2003 futhi yavalwa ekupheleni kuka-2016. Ibilokhu ivalwa ngendlela elawulwayo futhi yalungiswa kusukela ngo-2018.

Isikhungo esikhona sokwelapha i-leachate e-Changshengqiao Landfill yakhelwe njengendawo engu-1,730 ton/d, ehlanganisa uhlelo lwe-MBR+DTRO elingu-400 ton/d kanye nohlelo lokwelapha oluphuthumayo lwe-STRO oluyi-1,330 ton/d. Njengamanje, izinhlelo ze-MBR+DTRO zikhiqiza cishe amathani ayi-100 e-leachate concentrate ngosuku, kanti indawo ye-STRO ikhiqiza cishe amathani angama-400 wokugxila ngosuku. I-leachate concentrate ekhiqiziwe iyaxutshwa futhi igcinwe echibini lokulinganisa ngaphakathi kwendawo yokulahla imfucumfucu, okungamamitha angama-38,000. ³ zigcinwa ngaphakathi kwendawo yokulahla imfucumfucu futhi cishe i-140,000 m ³ zigcinwa ngaphandle kwendawo yokulahla imfucuza. Umthamo wokugcina wesayithi ucishe wagcwala, nobungozi bemvelo obuvelele.

Uhlelo lokwelapha ukuhlushwa kwe-leachate kule phrojekthi ngokuyinhloko luhlanganisa ukugxilisa ingqondo okubili, eyodwa i-MBR+DTRO egxilile ngokwelashwa okuthuthukisiwe kwe-biochemical, kanti enye i-STRO igxile ngaphandle kokwelashwa kwamakhemikhali e-biochemical. Izinga lamanzi lalezi zinto ezimbili zokugxilisa ingqondo lihluka kakhulu, futhi into yokwelapha yale phrojekthi ixubile.

Qedela ukwelashwa kwe-leachate endaweni yokulahla imfucumfucu phakathi nezinyanga ezi-3 zokusebenza okusemthethweni.

Qedela ukwelashwa kwe-leachate ngaphakathi nangaphandle kwendawo yokulahla imfucumfucu phakathi nezinyanga eziyi-18 zokusebenza ngokusemthethweni.

Izinqubo zokuvuza okusha zigxila ngesikhathi esisodwa nsuku zonke.

Ngokombiko wekhwalithi yamanzi wesampula yamanzi kanye nolwazi lwenkampani yethu kumaphrojekthi afanayo, ikhwalithi yamanzi yokuphakelayo yedizayini yale phrojekthi imi kanje:

ZLD 1,000 m³/d inqubo yokwelapha
Pretreatment + Concentration + Evaporation +Desiccation

I-concentrate ethangini lokulinganisa iqukethe okuqinile okumisiwe(SS) futhi inokuqina okuphezulu. Zombili zidinga ukususwa ngokuthambisa kanye nokwelashwa kwangaphambili kwe-TUF.

Amanzi angcolile aphuma ekuthambiseni aphathwa ngolwelwesi olubalulekile. Ukukhethwa kolwelwesi olubalulekile kuncike esisindweni samangqamuzana esifanele. Ngokomphumela wokuhlola, isisindo esifanelekile samangqamuzana singanqunywa. Kulokhu, ingxenye ye-colloid kanye ne-macromolecular organic matters inganqatshwa ngokukhetha ngolwelwesi olukhethiwe ngaphandle kokwenqaba ubulukhuni nosawoti. Lokhu kungahlinzeka ngendawo enhle yokusebenza kwe-HPRO ne-MVR. Ngaphandle kwalokho, isistimu ikwazi ukubuyisela ngo-90-98% ngokucindezela okuphansi kokusebenza ngenxa yezimpawu ze-membrane yezinto ezibonakalayo. Ukwengeza, inani elincane lokugxilisa ingqondo libuye liphathwe nge-desiccation.

Amanzi angcolile avela ku-memtrane yezinto agxiliswa yi-HPRO. Njengoba i-HPRO yamukela imojula ye-anti-pollution disc membrane, ingagxilisa kakhulu amanzi aluhlaza, inciphise inani lamanzi ahwamukile. Ngakho-ke, izindleko eziphelele zokutshalwa kwezimali nezokusebenza zingalondolozwa.

Ikhwalithi ye-permeate evela kulwelwesi lwempahla inhle ekwehliseni inani le-ejenti elwa negwebu elisetshenziswa ohlelweni lokuhwamuka kwe-MVR. Lokhu kungaqeda ngokuphumelelayo lesi simo esinamagwebu. Ukwengeza, usawoti awukwazi ukugoqwa yi-organic matter, enenzuzo ku-crystallization evaporation ezinzile futhi eqhubekayo. Ngaphandle kwalokho, njengoba uhlelo lwe-MVR lungasebenza ezimeni ezine-asidi ezinengcindezi engemihle kanye nezinga lokushisa eliphansi, ukukala nokugqwala kungavinjelwa. Futhi, igwebu linzima ukwenza, okuholela kukhwalithi enhle ye-condensate yokuhwamuka. I-MVR permeate igeleza ibuyele kulwelwesi ukuze ithole ukwelashwa okwengeziwe ngaphambi kokukhishwa. I-brine evela ku-MVR iphathwa nge-desiccation.

Kunezinhlobo ezintathu zodaka olukhiqizwe kule phrojekthi, ezidinga ukwelashwa. Iwudaka lwe-inorganic olusuka ekwelashweni kwangaphambili, udaka lwe-brine olusuka ku-evaporation crystallization kanye nodaka olusuka e-desiccation.

Inkontileka yasayinwa ngoNovemba, 2020. Izisetshenziswa ezinamandla okwelapha angu-1000 m³/d zafakwa futhi zamukelwa ngo-April, 2020. Iphrojekthi ye-Jiarong Changshengqiao concentration ye-ZLD ingabhekwa njengophawu lomkhakha we-WWT.