Changshengqiao qhov chaw pov tseg yog qhov chaw pov tseg hauv hav zoo ib yam nrog thaj av ntawm 690,642 m ³ , thaj chaw pov tseg ntawm kwv yees li 379,620 m ³ thiab tsim muaj peev xwm ntawm 14 lab m ³ . Qhov chaw pov tseg tau muab tso rau hauv qhov kawg ntawm Lub Xya Hli 2003 thiab raug kaw thaum kawg ntawm 2016. Nws tau raug kaw thiab kho dua tshiab txij li xyoo 2018.

Lub chaw kho dej uas twb muaj lawm ntawm Changshengqiao Landfill yog tsim los ua 1,730 ton / d qhov chaw, suav nrog 400 ton / d MBR + DTRO system thiab 1,330 ton / d STRO kev kho mob xwm txheej ceev. Tam sim no, MBR + DTRO cov tshuab tsim tawm txog 100 tons ntawm cov kua qaub nyob hauv ib hnub, thiab STRO qhov chaw tsim tawm txog 400 tons ntawm cov ntsiab lus hauv ib hnub. Cov kua txiv hmab txiv ntoo uas tsim tawm tau muab sib xyaw thiab khaws cia rau hauv lub pas dej sib npaug hauv qhov chaw pov tseg, ntawm qhov uas kwv yees li 38,000 m. ³ tau khaws cia hauv qhov chaw pov tseg thiab txog 140,000 m ³ khaws cia sab nraum qhov chaw pov tseg. Lub peev xwm khaws cia ntawm qhov chaw yog ze li saturated, nrog rau qhov muaj kev pheej hmoo ntawm ib puag ncig.

Kev kho cov dej lim dej hauv txoj haujlwm no feem ntau yog muaj ob lub ntsiab lus, ib qho yog MBR + DTRO mloog zoo nrog kev kho mob biochemical siab heev, thiab lwm qhov yog STRO mloog zoo yam tsis muaj kev kho mob biochemical. Cov dej zoo ntawm ob lub concentrates txawv heev, thiab cov khoom siv kho mob ntawm qhov project no yog tov concentrate.

Ua kom tiav cov dej lim dej concentration hauv qhov chaw pov tseg hauv 3 lub hlis ntawm kev ua haujlwm raug cai.

Ua kom tiav cov dej xau concentration kho sab hauv thiab sab nraud pov tseg hauv 18 lub hlis ntawm kev ua haujlwm raug cai.

Cov txheej txheem tshiab leachate concentrates ib txhij txhua hnub.

Raws li cov ntaub ntawv qhia txog dej zoo ntawm cov qauv dej thiab cov kev paub ntawm peb lub tuam txhab hauv cov haujlwm zoo sib xws, tus tsim pub dej zoo ntawm qhov project no yog raws li hauv qab no:

ZLD 1,000 m³ / d txheej txheem kho
Pretreatment + Concentration + Evaporation + Desiccation

Cov concentrate hauv lub tank sib npaug muaj cov khoom raug tshem tawm (SS) thiab tseem muaj qhov tawv tawv siab. Ob leeg yuav tsum tau muab tshem tawm los ntawm softening thiab TUF pretreatment.

Lub effluent los ntawm softening yog kho los ntawm cov ntaub ntawv membrane. Cov khoom siv membrane xaiv nyob ntawm qhov tsim nyog molecular hnyav. Raws li qhov kev sim, qhov hnyav molecular yuav raug txiav txim siab. Nyob rau hauv cov ntaub ntawv no, ib feem ntawm cov colloid thiab macromolecular organic teeb meem tuaj yeem xaiv tsis lees paub los ntawm cov khoom siv uas tau xaiv los ntawm daim nyias nyias yam tsis kam lees hardness thiab salinity. Qhov no tuaj yeem muab qhov chaw zoo rau HPRO thiab MVR kev ua haujlwm. Tsis tas li ntawd, lub kaw lus muaj peev xwm ntawm 90-98% rov qab los nrog kev ua haujlwm qis vim yog cov khoom siv membrane. Tsis tas li ntawd, ib qho me me ntawm cov concentrate yog ntxiv kho los ntawm desiccation.

Cov effluent los ntawm cov khoom siv memtrane yog concentrated los ntawm HPRO. Txij li HPRO tau txais kev tiv thaiv cov pa phem disc membrane, nws tuaj yeem mloog zoo rau cov dej nyoos, txo cov dej evaporated. Yog li ntawd, tag nrho cov peev thiab cov nqi khiav lag luam tuaj yeem txuag tau.

Qhov permeate zoo los ntawm cov khoom siv membrane yog qhov zoo rau kev txo qis ntawm cov khoom ua npuas ncauj siv hauv MVR evaporation system. Qhov no tuaj yeem tshem tawm qhov tshwm sim foaming zoo. Tsis tas li ntawd, cov ntsev tsis tuaj yeem qhwv los ntawm cov organic teeb meem, uas yog qhov zoo rau kev ruaj khov thiab tsis tu ncua evaporation crystallization. Tsis tas li ntawd, txij li MVR system tuaj yeem ua haujlwm nyob rau hauv acidic tej yam kev mob nrog lub siab tsis zoo thiab tsis kub, qhov scaling thiab corrosion tshwm sim tuaj yeem tiv thaiv. Tsis tas li ntawd, ua npuas ncauj yog ib qho nyuaj rau tsim, ua rau cov evaporation condensate zoo. MVR permeate ntws rov qab mus rau lub membrane system rau kev kho mob ntxiv ua ntej tso tawm. Lub brine los ntawm MVR yog kho los ntawm desiccation.

Muaj peb hom sludge generated nyob rau hauv qhov project no, uas yuav tsum tau kho. Lawv yog cov inorganic sludge los ntawm pretreatment, brine sludge los ntawm evaporation crystallization thiab sludge los ntawm desiccation.

Daim ntawv cog lus tau kos npe rau lub Kaum Ib Hlis, 2020. Cov khoom siv nrog 1000 m³ / d muaj peev xwm kho tau raug teeb tsa thiab lees txais thaum lub Plaub Hlis, 2020. Jiarong Changshengqiao concentration ZLD qhov project tuaj yeem suav tias yog WWT kev lag luam benchmark.