Indawo yokulahla inkunkuma yaseChangshengqiao yindawo yokulahla inkunkuma efana nentlambo enomhlaba oyi-690,642 m. ³ , indawo yokulahla inkunkuma emalunga nama-379,620 m ³ kunye nomthamo woyilo omalunga ne-14 lezigidi m ³ . Indawo yokulahla inkunkuma yaqala ukusebenza ekupheleni kukaJulayi ka-2003 kwaye yavalwa ekupheleni kuka-2016. Sele iphantsi kokuvalwa nokulungiswa kwakhona ukususela ngo-2018.

Indawo ekhoyo yonyango lwe-leachate e-Changshengqiao Landfill iyilwe njengendawo eyi-1,730 yetoni/d, equka i-400 ton/d MBR+DTRO inkqubo kunye ne-1,330 ton/d STRO inkqubo yonyango olungxamisekileyo. Okwangoku, iinkqubo ze-MBR+DTRO zivelisa malunga neetoni ezili-100 ze-leachate concentrate ngosuku, kwaye indawo ye-STRO ivelisa malunga neetoni ezingama-400 zokugxila ngosuku. Ugxininiso oluveliswayo lweleachate luyaxutywa kwaye lugcinwe kwindawo yokulinganisa phakathi kwendawo yokulahla inkunkuma, malunga ne-38,000 m. ³ zigcinwe ngaphakathi kwitiphu kunye malunga ne-140,000 m ³ zigcinwe ngaphandle kwetiphu. Umthamo wokugcina wesiza uphantse wahlutha, kunye neengozi ezibonakalayo zokusingqongileyo.

Inkqubo yoxinaniso lwe-leachate kule projekthi ibandakanya ikakhulu i-concentrates ezimbini, enye yi-MBR+DTRO egxile kunyango oluphezulu lwe-biochemical, kwaye enye yi-STRO yokugxila ngaphandle konyango lwe-biochemical. Umgangatho wamanzi wezigxina ezimbini zihluka kakhulu, kwaye into yonyango yale projekthi ixubene.

Gqibezela unyango lwe-leachate kwindawo yokulahla inkunkuma phakathi kweenyanga ezi-3 zokusebenza ngokusemthethweni.

Gqibezela unyango loxinaniso lwe-leachate ngaphakathi nangaphandle kwendawo yokulahla inkunkuma phakathi kweenyanga ezili-18 zokusebenza ngokusemthethweni.

Iinkqubo zokuvuza okutsha zigxila ngaxeshanye yonke imihla.

Ngokwengxelo yomgangatho wamanzi wesampulu samanzi kunye namava enkampani yethu kwiiprojekthi ezifanayo, uyilo lomgangatho wamanzi wamanzi wale projekthi lulandelayo:

ZLD 1,000 m³/d inkqubo yonyango
Unyango lwangaphambili + Uxinaniso + Ukuguquka + koMphunga

I-concentrate kwitanki yokulinganisa iqulethe izinto eziqinileyo ezimisiweyo (SS) kwaye inobulukhuni obuphezulu. Zombini kufuneka zisuswe ngokuthambisa kunye ne-TUF pretreatment.

Amanzi amdaka asuka ekuthambiseni aphathwa yinwebu yezinto. Ukukhethwa kwe-membrane yezinto kuxhomekeke kubunzima obufanelekileyo bemolekyuli. Ngokwesiphumo sovavanyo, ubunzima obufanelekileyo bemolekyuli bunokugqitywa. Kule meko, inxalenye ye-colloid kunye ne-macromolecular organic matters can be selectively rejected yi-membrane yezinto ezikhethiweyo ngaphandle kokugatya ubulukhuni kunye netyuwa. Oku kunokubonelela ngemeko-bume elungileyo yokusebenza kwe-HPRO kunye ne-MVR. Ngaphandle koko, inkqubo iyakwazi ukubuyisela i-90-98% kunye noxinzelelo oluphantsi lokusebenza ngenxa yeempawu ze-membrane eziphathekayo. Ukongezelela, inani elincinci lokugxila liphinde liphathwe nge-desiccation.

Amanzi amdaka asuka kwimemtrane yezinto agxininiswe yi-HPRO. Ekubeni i-HPRO yamkele imodyuli ye-membrane ye-anti-pollution, inokugxininisa kakhulu kumanzi akrwada, ukunciphisa ubuninzi bamanzi aphuphumayo. Kungoko, utyalo-mali lulonke kunye neendleko zokusebenza zinokugcinwa.

Umgangatho we-permeate ukusuka kwi-membrane yezinto ezilungileyo ekunciphiseni inani le-agent echasene ne-foam esetyenziswa kwi-MVR ye-evaporation system. Oku kunokuphelisa ngokufanelekileyo isenzeko sogwebu. Ukongezelela, ityuwa ayinakugqunywa yinto ephilayo, enenzuzo kwi-crystallization ezinzileyo kwaye eqhubekayo. Ngaphandle koko, ekubeni inkqubo ye-MVR inokusebenza kwiimeko ze-acidic kunye noxinzelelo olubi kunye nobushushu obuphantsi, ukulinganisa kunye ne-corrosion phenomenon inokuthintelwa. Kwakhona, ugwebu kunzima ukuvelisa, nto leyo ekhokelela kumgangatho olungileyo wecondensate. I-MVR permeate iqukuqela ibuyela kwi-membrane inkqubo yonyango olongezelelweyo ngaphambi kokukhutshwa. I-brine evela kwi-MVR iphathwa ngokukhutshwa.

Kukho iintlobo ezintathu zodaka oluveliswe kule projekthi, ekufuneka zicocwe. Ziludaka lwe-inorganic oluvela kunyango lwangaphambili, i-brine sludge esuka kwicrystallization engumphunga kunye nodaka olusuka kwi-desiccation.

Ikhontrakthi yasayinwa ngoNovemba, 2020. Isixhobo esinomthamo wonyango we-1000 m³/d safakwa kwaye samkelwa ngo-Epreli, 2020. Iprojekthi ye-Jiarong Changshengqiao yoxinaniso ye-ZLD inokuthathwa njengophawu loshishino lwe-WWT.