Cov Xwm Txheej Thov rau Geomembranes

Nyob rau hauv ib lub caij nyoog uas cov haujlwm tsim kho vaj tse thiab kev tiv thaiv ib puag ncig ntsib cov kev cai nruj dua rau kev tiv thaiv dej tsis nkag, geomembranes ua haujlwm ua "cov khoom siv tseem ceeb rau kev tswj dej ntws"; lawv cov kev ua tau zoo thiab kev tsim nyog ncaj qha txiav txim siab qhov kev nyab xeeb thiab cov txiaj ntsig ecological ntawm ib qhov project. Siv ntau xyoo ntawm kev txawj ntse thiab kev tshawb fawb tshwj xeeb, Shandong Hongyue Environmental Engineering Co., Ltd. tau pom nws cov khoom geomembrane tau txais kev lees paub dav dav thoob plaws ntau dua kaum ob lub lag luam - suav nrog kev txuag dej, kev tiv thaiv ib puag ncig, kev thauj mus los, thiab kev ua liaj ua teb. Txawv los ntawm lawv "kev tiv thaiv dej tsis nkag, kev tiv thaiv huab cua zoo, thiab yooj yim ntawm kev teeb tsa," cov khoom no ua tau zoo tsim ib qho "kab tiv thaiv hauv av" rau ntau yam haujlwm engineering.
Shandong Hongyue Environmental cov khoom siv geomembrane yog siv HDPE (High-Density Polyethylene) geomembranes, uas muaj ntau hom xws li du, textured, thiab composite membranes. Nrog rau qhov tuab ntawm 0.2 hli txog 3.0 hli, cov khoom no ua raws li GB/T17643-2011 tus qauv hauv tebchaws. Lawv cov impermeability coefficient ncav cuag 1 × 10⁻¹² cm/s—sib npaug rau qhov seepage rate ntawm tsuas yog 0.0001 milliliters dej ib square centimeter ib xyoos—dhau qhov kev cai ntawm kev lag luam rau kev tswj seepage. Ntxiv mus, cov khoom no tau muab cov tshuaj tiv thaiv kev laus thiab cov tshuaj tiv thaiv UV, ua rau muaj kev ua haujlwm ruaj khov hauv cov chaw ib puag ncig txij li -70 ° C txog 110 ° C. Lawv ua pov thawj tias muaj zog tiv thaiv corrosion los ntawm cov kua qaub thiab alkalis concentrated, muaj lub zog tensile tshaj 18 MPa, thiab muaj peev xwm tiv taus cov qauv geological nyuaj thiab cov huab cua hnyav.
Hauv kev tsim kho ib puag ncig, cov geomembranes ua haujlwm ua "qhov teeb meem tseem ceeb rau kev tiv thaiv thiab tswj kev ua qias tuaj." Hongyue Environmental's HDPE geomembranes tau raug xa mus rau ntau qhov project landfill—xws li Theem II ntawm Chifeng Central Urban Area Waste Treatment Center thiab Yueyang Domestic Waste Incineration Power Generation Project. Los ntawm "ob txheej impermeable membrane ntxiv rau composite geomembrane", cov kab ke no tau thaiv qhov nkag ntawm cov dej khib nyiab landfill leachate, yog li tiv thaiv cov av thiab dej hauv av. Hauv cov projects wastewater treatment plant, cov geomembranes no siv rau hauv kev tsim cov pas dej tsis muaj dej ntws thiab cov pas dej sedimentation; kev saib xyuas tom qab ua tiav dhau peb xyoos tau qhia txog xoom qhov chaw xau, yog li ua lub luag haujlwm tseem ceeb hauv kev ua kom ntseeg tau tias cov dej khib nyiab kho tau raws li cov qauv kev tso tawm.
Kev tsim kho dej txuag yog ib qho ntawm cov xwm txheej tseem ceeb rau cov geomembranes. Hauv Yongtaichuan Irrigation Diversion thiab Storage Reservoir Project hauv Jingtai County, Gansu Province, 1.5mm-tuab textured HDPE geomembrane muab los ntawm Hongyue Environmental Protection ua lub luag haujlwm tseem ceeb. Los ntawm kev tsim qauv uas siv "nto qauv los txhim kho kev sib txhuam," daim nyias nyias tiv thaiv kev plam ntawm cov qhov dej ntawm lub pas dej; tib lub sijhawm, nws lub zog tensile siab tso cai rau nws kom haum rau qhov tsis sib xws ntawm lub hauv paus, yog li ua kom muaj kev nyab xeeb thiab kev ncaj ncees ntawm lub pas dej khaws dej. Ntxiv mus, cov khoom no tau raug xa mus rau ntau qhov project, suav nrog cov khoom tiv thaiv kev seepage ntawm Eastern Route ntawm South-to-North Water Diversion Project thiab cov txheej txheem tiv thaiv kev seepage subgrade rau Beijing-Shanghai High-Speed ​​​​Railway. Hauv cov ntawv thov uas cuam tshuam nrog kev kho dej ntws thiab kev txhawb nqa embankment, geomembrane ua haujlwm ob txoj haujlwm - muab ob qho tib si tiv thaiv kev seepage thiab rov qab lim dej - yog li txo qis kev yaig av thiab txhim kho tag nrho qhov project ruaj khov.
Hauv kev tsim kho tsheb thauj mus los, cov geomembranes ua haujlwm zoo li "lub tsho tiv thaiv" rau cov kev hauv qab txoj kev. Thaum lub sijhawm tsim cov kev loj thiab kev tsheb ciav hlau, Hongyue Environmental Protection's geomembranes raug siv ua cov txheej txheem tiv thaiv kev nqus dej kom tiv thaiv kev khov los ntawm cov dej hauv av nce siab, tib lub sijhawm tiv thaiv kev ua kom cov dej hauv qab tsis khov los ntawm kev nkag mus rau hauv dej nag. Hauv qhov project landscaping rau Huanglong Expressway, geomembranes tau siv ua ke nrog geotextiles; daim ntawv thov sib xyaw no tsis yog tsuas yog ua kom muaj kev ruaj khov ntawm cov qauv hauv qab xwb tab sis kuj pab txhawb kev ntws dej rau cov nroj tsuag saum toj, yog li ua tiav ob lub hom phiaj ntawm "kev nyab xeeb engineering thiab kev zoo nkauj ecological."
Hauv cov kev ua liaj ua teb thiab kev ua liaj ua teb hauv dej, cov geomembranes tau tshwm sim los ua "lub cuab yeej muaj zog rau kev txo cov nqi thiab txhawb kev ua haujlwm zoo." Hauv kev tsim kho ntawm 10,500-sow yug tsiaj hauv Tangyin, Henan Province, Hongyue Environmental Protection's 0.5mm-tuab dub HDPE geomembrane tau xa mus rau cov txheej txheem tiv thaiv kev seepage ntawm biogas digesters. Siv nws qhov kev sib txuas zoo heev thiab kev tiv thaiv corrosion, daim nyias nyias ua kom ntseeg tau tias muaj kev sau cov biogas zoo thaum tib lub sijhawm tiv thaiv kev xau ntawm cov tsiaj txhu thiab kev ua qias tuaj ntawm cov av tom qab. Hauv kev ua liaj ua teb ntses, geomembranes siv rau kev tiv thaiv qhov av qis thiab cov txheej txheem hauv qab pas dej; daim ntawv thov no tuaj yeem txo qhov dej poob ntau dua 30%, pab tiv thaiv kev kis tus kab mob ntses, thiab thaum kawg pab cov neeg ua liaj ua teb aquaculture hauv kev nce lawv cov nyiaj tau los.
Dhau li ntawm cov xwm txheej uas tau hais los saum toj no, Hongyue Environmental Protection's geomembranes kuj tseem siv dav hauv ntau qhov chaw tshwj xeeb, suav nrog cov txheej txheem tiv thaiv kev seepage rau cov pas dej tailings, linings rau subway tunnels, thiab cov kev daws teeb meem dej rau cov vaj ru tsev. Lub tuam txhab muab cov kev pabcuam txiav tshwj xeeb uas tsim rau cov kev xav tau tshwj xeeb ntawm qhov project thiab tswj hwm pab pawg kws tshaj lij los muab cov lus qhia txog kev tsim kho hauv qhov chaw. Los ntawm kev muab kev pabcuam tiav, xaus-rau-kawg-txhua yam los ntawm "kev muab khoom siv" mus rau "kev txhawb nqa kev txawj ntse" - Hongyue Environmental Protection ua kom ntseeg tau tias muaj kev ua tau zoo tshaj plaws tiv thaiv kev seepage ntawm txhua qhov project engineering uas nws txhawb nqa. Siv lawv cov kev daws teeb meem zoo thiab cov xwm txheej tshwj xeeb, Shandong Hongyue Environmental Protection cov khoom geomembrane tau mus txog ntau dua 40 lub nroog loj thiab nruab nrab thoob plaws Suav teb, nrog rau kev xa khoom mus rau thaj chaw xws li Tebchaws Europe, Asmeskas, thiab Australia. Txav mus tom ntej, thaum kev tiv thaiv ib puag ncig thiab cov haujlwm tsim kho vaj tse txuas ntxiv mus, Hongyue Environmental Protection yuav tseem tsom mus rau kev txhim kho cov thev naus laus zis tiv thaiv kev seepage - txhawb nqa "cov kab tiv thaiv hauv av" rau ntau qhov project - yog li ua rau muaj kev sib koom tes ntawm cov khoom siv ntsuab thiab kev txuag ecological.