isiZulu
Isiqondiso Sobukhulu Be-HDPE Geomembrane: Ukukhetha u-0.5–2.0 mm Ngokwesicelo
Kwadalwa ngo 03.12
Ukukhetha ubukhulu obufanele be-HDPE geomembrane kubalulekile empumelelweni yamaphrojekthi ahlukahlukene, kusukela ekugcinweni kwemvelo kuya ezinhlelweni zezimboni. Ubukhulu be-HDPE geomembrane bungathinta kakhulu ukusebenza kwayo, ukuqina, kanye nokonga izindleko. Lo mhlahlandlela uzokuhambisa ezintweni ezithinta ukukhethwa kobukhulu be-geomembrane futhi unikeze imininingwane ngobukhulu obufanele bezinhlelo ezahlukene ze-HDPE, kusukela ku-0.5 kuye ku-2.0 mm.
Ukuqonda izici kanye nezinzuzo ze-ama-HDPE geomembranes kubalulekile ukwenza izinqumo ezinolwazi. Ngokubuka konke okubanzi, ungabheka umhlahlandlela wethu onemininingwane mayelana noukujiya kwe-HDPE geomembrane.
Okubalulekile Okubalulekile
- Izicelo ezahlukene zidinga ukujiya okuthile kwe-HDPE geomembrane ukuze kusebenze kahle.
- Ukukhethwa kokujiya kuthonywa izinto ezifana nokumelana nokubhoboza, amandla okudonsa, nokumelana namakhemikhali.
- Izimfuneko zokulawula zivame ukubeka ubukhulu obuncane bezicelo ezithile, njengezindawo zokulahla imfucuza kamasipala.
- Izinto ezithinta umnotho, okubalwa izindleko zezinto kanye nezinselelo zokufakwa, zidlala indima enkulu ekukhetheni ubukhulu.
- Ukuqonda kahle izidingo ezithile zephrojekthi kubalulekile ekukhetheni ubukhulu obufanele be-HDPE geomembrane.
Ukuqonda nge-HDPE Geomembranes: Izici kanye nezinzuzo
Ukuqonda izici ze-HDPE geomembranes kubalulekile ekukhetheni impahla efanele yezicelo zokugcina. I-HDPE geomembranes yaziwa ngokuqina kwayo nokumelana nezinto ezahlukahlukene zemvelo.
Izici zamakhemikhali nezomzimba ze-HDPE Geomembranes
I-HDPE geomembranes ibonisa ukumelana namakhemikhali okuhle kakhulu nokuqina komzimba, okwenza ilungele izicelo eziningi.
Ukumelana namakhemikhali kanye nokuchayeka ku-UV
I-HDPE geomembranes imelana kakhulu namakhemikhali, okubandakanya ama-acids, ama-bases, nama-hydrocarbons. Iphinde inikeze ukumelana okuhle nokuchayeka ku-UV, iqinisekisa ukusebenza kwesikhathi eside ngisho nasezindaweni ezinzima zemvelo. Lokhu kumelana kubalulekile ezicelo lapho i-geomembrane ichayeke khona elangeni namakhemikhali.
Amandla Okubamba Nokumelana Nokubhoboza
Lezi geomebranes zinokubamba okuphezulu kwamandla nokumelana nokubhoboza, okubalulekile ekubeni zikwazi ukubekezelela ingcindezi ngesikhathi sokufakwa kanye nokuphila kwazo kwenkonzo. Ukuqina kwempahla kusiza ukuvimbela ukulimala ezintweni ezibukhali kanye nokuqhekeka ngenxa yengcindezi.
Izinzuzo Ngaphezu Kwezinye Izinto Zokubamba
Ama-geomembrane e-HDPE anezinzuzo eziningana kunezinye izinto zokubamba, okubandakanya i-PVC, i-LLDPE, kanye nezinto zokubamba zobumba.
Ukuqhathaniswa Ne-PVC, I-LLDPE, Nezinto Zokubamba Zobumba
Uma kuqhathaniswa ne-PVC ne-LLDPE, ama-geomembrane e-HDPE anikeza ukumelana namakhemikhali okungcono nokuqina. Ngokungafani nezinto zokubamba zobumba, ahlinzeka ngomgoqo ongaguquguquki futhi onokwethenjelwa ngokumelana nokuvuza. Ama-geomembrane e-HDPE anenzuzo ikakhulukazi ezinhlelweni ezidinga ukumelana namakhemikhali aphezulu nokuguquguquka.
Ukuphila isikhathi eside Nokusebenza Kwemvelo
Ukuphila isikhathi eside kwama-geomembrane e-HDPE, kuhlanganiswe nokusebenza kwawo kwemvelo, kubenza bakhethwe kakhulu emaphrojekthi okubamba. Ahlanganiswe ukuze ahlale amashumi eminyaka ngokugcinwa okuncane, kunciphisa umthelela omkhulu wemvelo.
Ngokuqonda izakhiwo nezinzuzo ze-HDPE geomembranes, onjiniyela nabaphathi bamaphrojekthi bangenza izinqumo ezinolwazi mayelana nokusetshenziswa kwazo ezinhlelweni ezahlukahlukene zokugcina.
Indima Ebalulekile Yokujiya kwe-HDPE Geomembrane Ekuphumeleleni Kwephrojekthi
Ukujiya kwe-HDPE geomembrane kuyipharamitha ebalulekile ethonya kakhulu imiphumela yamaphrojekthi ahlukahlukene ezobunjiniyela bomphakathi nezemvelo. Ukukhetha ukujiya okufanele akuyona nje indaba yezindleko noma ukutholakala; kuthinta ngqo ukusebenza, ukuqina, nempumelelo yonke yephrojekthi.
Njengoba uJeffrey G. Williamson, uchwepheshe odumile emkhakheni, ake waphawula,
"I-geomembrane iqine njengengxenye yayo ebuthakathaka kakhulu, kanti ubukhulu budlala indima ebalulekile ekunqumeni leyo qiniso."
Lokhu kugcizelela ukubaluleka kokukhetha ubukhulu obufanele ukuqinisekisa ubuqotho besistimu yokubamba.
Indlela Ubukhulu Buthinta Ukusebenza Nokuqina
Ubukhulu be-HDPE geomembrane buthinta izakhiwo zayo zemishini, njengamandla okwelula nokumelana nokubhoboza. I-geomembrane enobukhulu obuningi ngokuvamile inikeza ukumelana okungcono ekulimaleni okuvela ekuphathweni nasekufakweni, kanye nokuqina okuthuthukisiwe ngokumelana nezingcindezi zemvelo.
- Ukwandisa ukumelana nokubhoboza nokudabuka
- Kumelana kangcono nezingcindezi zemvelo njengokuvezwa yi-UV
- Ukuphila okuthuthukisiwe ngenxa yokuncipha kokubola
Ukuhlola Izingozi Nokukhetha Ubukhulu
Ukuqhuba ukuhlolwa kwezingozi okujulile kubalulekile ekukhetheni ubukhulu obufanele be-HDPE geomembrane. Izinto ezifana nohlobo lwezinto ezibanjwe, izimo zesayithi, kanye nezikhathi zokusebenza ezilindelwe kumele zicatshangelwe ukuze kuncishiswe izingozi ezingaba khona.
Ngokuqonda lezi zinto, onjiniyela bangakwenza izinqumo ezinemininingwane mayelana nobukhulu obufanele, ngaleyo ndlela beqinisekisa impumelelo yephrojekthi futhi banciphise ithuba lokuthi kube nezindleko zokulungisa noma ukuwa.
Izinketho Zokujiya Okujwayelekile Kwe-HDPE Geomembrane Ziyatholakala
Izinketho zokujiya okujwayelekile kwe-HDPE geomembrane ziqala ku-0.5 mm kuye ku-2.0 mm, ngayinye inezicelo zayo ezihlukile nemikhawulo. Ukukhethwa kokujiya okufanele kubalulekile empumelelweni yamaphrojekthi ahlukahlukene, okubandakanya ukuphathwa kukadoti, ukubanjwa kwamanzi, kanye nezigaba zokumba izimbiwa.
Izicelo Nemikhawulo Ye-0.5 mm (20 mil)
I-geomembrane ye-HDPE engu-0.5 mm ingenye yezinketho ezincane ezitholakalayo, efanele amaphrojekthi lapho izidingo zokugcina zingadingi kakhulu. Ivamise ukusetshenziswa ezintweni ezihlobisa amanzi noma amaphrojekthi amancane okugcina. Kodwa-ke, ukwakheka kwayo okuncane kuyenza ibe sengozini yokubhajwa nokudabuka kalula.
Izicelo Nemikhawulo ye-0.75 mm (30 mil)
Ubukhulu obungu-0.75 mm bunikeza ibhalansi phakathi kwezindleko nokusebenza, okwenza kube efanele izicelo ezahlukahlukene, okubandakanya amachibi amancane kuya aphakathi nendawo kanye nokugcina okwesibili. Ngenkathi inikeza ukuqina okungcono kunesinketho esingu-0.5 mm, isadinga ukuphathwa ngokucophelela ngesikhathi sokufakwa.
Izicelo Nemikhawulo ye-1.0 mm (40 mil)
I-geomembrane ye-HDPE engu-1.0 mm ivamise ukusetshenziswa ezinhlelweni ezahlukahlukene zokugcina, okubandakanya izendlalelo zezindawo zokulahla udoti nezendlalelo zamachibi. Inikeza ibhalansi enhle phakathi kwezindleko nokuqina, okwenza kube ukukhetha okudumile emaphrojekthi amaningi. Kodwa-ke, ingase inganele ezinhlelweni ezinokucindezela okuphezulu noma lezo ezidinga ukuqina kwesikhathi eside.
Izicelo Nemikhawulo ye-1.5 mm (60 mil)
Ubukhulu be-1.5 mm buasetshenziswa ezinhlelweni ezidinga kakhulu, njengokugcina imfucuza enobungozi kanye namaphrojekthi amakhulu okugcina amanzi. Inikeza ukuqina okuthuthukisiwe nokumelana nokubhoboza nokumelana namakhemikhali. Ubukhulu obunjalo buvame ukucaciswa emaphrojekthini adinga izinga eliphezulu lokuphepha kokugcina.
2.0 mm (80 mil) Izicelo Nezikhala
I-2.0 mm HDPE geomembrane iyinketho ejulile kakhulu ejwayelekile, esetshenziswa ezicelweni ezinzima kakhulu, kuhlanganise nokuphathwa kwedoti okukhulu kanye nezinhlelo zokugcina ezimbonini. Iphakela izinga eliphezulu lokuhlala isikhathi eside nokumelana nezinto zamakhemikhali, okwenza ifanele izinhlelo ezinezidingo ezinzima zokugcina.
Ubukhulu (mm) | Ubukhulu (mil) | Izicelo Ezivamile | Izikhala |
0.5 | 20 | Izici zamanzi ezihlotshisiwe, amaphrojekthi amancane okugcina | Kulula ukubhajwa izimbobo nokudabuka |
0.75 | 30 | Amachibi amancane kuya amaphakathi, ukuvalwa kwesibili | Idinga ukuphathwa ngokucophelela ngesikhathi sokufakwa |
1.0 | 40 | Ama-liner ezindaweni zokulahla udoti, ama-liner amachibi | Kungase kungenele izicelo ezinokucindezela okuphezulu |
1.5 | 60 | Ukugcinwa kwemfucumfucu enobungozi, ukugcinwa kwamanzi okukhulu | Izindleko eziphakeme kunezinye izinketho ezincane |
2.0 | 80 | Ukuphathwa kwemfucumfucu ngobukhulu obukhulu, ukugcinwa kwezimboni | Izindleko eziphakeme kakhulu, kodwa zinikeza ukuqina okukhulu nokumelana |
Njengoba kukhonjiswe etafuleni, ukukhethwa kobukhulu be-HDPE geomembrane kuncike ezidingweni ezithile zephrojekthi, okubandakanya izinga lokubanjwa elidingekayo, isikhathi esilindelekile sokuphila, nezimo zemvelo.
"Ukukhethwa kobukhulu be-HDPE geomembrane obufanele kuyisinqumo esibalulekile esithinta ukusebenza okuphelele nokuqina kwephrojekthi yokubanjwa."
— Uchwepheshe emkhakheni
Izinto Eziyinhloko Ezithinta Ukukhethwa Kobukhulu Be-HDPE Geomembrane
Ukuqonda izici ezibalulekile ezithinta ukukhethwa kwethuba le-HDPE geomembrane kubalulekile empumelelweni yephrojekthi. Ukukhetha ubukhulu akusikho okungahleliwe kodwa kusekelwe ekuhloleni okuphelele kwezici ezihlukahlukene ezithinta iphrojekthi nezemvelo.
Izidingo zePhrojekthi kanye Nezincazelo Zobunjiniyela
Izidingo zephrojekthi kanye nezincazelo zobunjiniyela zidlala indima ebalulekile ekunqumeni ubukhulu obufanele be-HDPE geomembrane. Izici ezifana nokusetshenziswa okuhlosiwe, imithwalo elindelekile, nezincazelo zokwakha kumele zicatshangelwe ngokucophelela. Isibonelo, amaphrojekthi ahilela imithwalo ephezulu noma ukucindezela angase adinge ama-geomembranes anobukhulu obukhulu ukuze kuqinisekiswe ukuqina nokusebenza. Ukuze uthole olunye ulwazi olunembile ngezidingo zephrojekthi, ungabheka izinsiza ezifana neukucatshangelwa nxa ukhetha i-HDPE geomembrane.
Izimo Zemvelo Nezindawo Eziqondile
Izimo zemvelo nezindawo ezithile zibalulekile ekukhetheni ubukhulu be-HDPE geomembrane. Lezi zimo zifaka phakathi:
Ukushisa Okuphakeme Nokwandiswa Kwamazinga Okushisa
Ukushintsha kwezinga lokushisa kungadala ukwandiswa nokuncipha kwe-geomembrane, kuthinte ubuqotho bayo. I-geomembranes ezinkulu zingase zibe nekhono elingcono lokumelana nalezi zinsiza.
Izimo Zesisekelo Nokulungiselela
Isimo nokulungiselela kwesubgrade kubalulekile. Izindawo ezingalingani noma ezingazinzile zingadinga ama-geomembranes anobukhulu obukhulu ukuze kuvinjwe ukuhlinzwa nokwenza kube nesistimu yokufaka ezinzile.
Impilo Yokusebenza Elindelekile Nezici Zokwehla
Impilo yokusebenza elindelekile ye-HDPE geomembrane nezici zokwehla ezingaba khona, ezifana nokub exposure kumakhemikhali noma ukukhanya kwe-UV, kumele zicatshangelwe. Ama-geomembranes anobukhulu obukhulu ngokuvamile anikeza impilo yokusebenza ende nokumelana okukhulu nokwehla.
Ukuhambisana Nezomthetho Nezindinganiso Zemboni
Izimfuno zomthetho namazinga embonini aphinde achaze ubukhulu obuncane be-HDPE geomembranes ezinhlelweni ezahlukene. Ukuthobela le mithetho kubalulekile ukuqinisekisa ukusebenza nokuphepha kwephrojekthi.
Isicelo | Ubukhulu Obunconyiwe | Izinto Ezibalulekile Okufanele Zicatshangelwe |
Izendlalelo Zezindawo Zokulahlwa Kwemfucuza | 1.5 mm - 2.0 mm | Umthwalo ophezulu, ukumelana namakhemikhali |
Izilawuli zamachibi | 0.75 mm - 1.0 mm | Ukumelana ne-UV, ukuguquguquka |
Izilawuli zamakhanali | 1.0 mm - 1.5 mm | Izilinganiso zokugeleza, ukulawulwa kokudliwa |
Ukuqina kwe-HDPE Geomembrane kwezicelo Zokuphathwa Kwemfucumfucu
Ama-geomembrane we-HDPE adlala indima ebalulekile ezinhlelweni zokuphatha udoti, ahlinzeka ngomgoqo othembekile ovimbela ukungcola. Ukusetshenziswa kwawo kuye kwanda ngenxa yokusebenza kwawo ekuvimbeleni ukuvuza nasekuqinisekiseni ubuqotho bezinhlelo zokugcina.
Izinhlelo Zokugcina Udoti kanye Nezidingo Zomthetho
Izinhlelo zezigubhu zomgqomo (landfill liner systems) ziyisicelo esibalulekile sama-HDPE geomembranes ekuphathweni kukadoti. Lezi zinhlelo zenzelwe ukuvimbela ukungcola kwamanzi angaphansi komhlaba kanye nomhlabathi ukungcola ngamanzi adonsela phansi (leachate). Izidingo zomthetho zezigubhu zomgqomo ziyahlukahluka kuye ngendawo, kodwa ngokuvamile zidinga ubukhulu obuncane kanye nezici ezithile zezinto ezisetshenzisiwe.
Izingqimba Zokuvikela Eziyinhloko Nezisekondari
Izinhlelo zezigubhu zomgqomo (landfill liner systems) zivame ukuba nezingqimba zokuvikela eziyinhloko nezisekondari. Ingqimba eyinhloko iyisithiyo esikhulu samanzi adonsela phansi (leachate), kanti ingqimba yesekondari ihlinzeka ngokuvikeleka okwengeziwe uma ingqimba eyinhloko yonakala. Ama-HDPE geomembranes asetshenziswa kuzo zombili izingqimba ngenxa yokuqina kwawo nokumelana namakhemikhali.
Izinhlelo Zokumboza Nezicelo Zokuvala
Ngaphandle kwezinhlelo ze-liner, ama-HDPE geomembranes asetshenziswa ezinhlelweni ze-cap kanye nezicelo zokuvala. Lezi zicelo zimboza indawo yokulahla imfucuza, zivimbela ukuguguleka nokungena kwamanzi. Ziklanyelwe ukuba zihlale isikhathi eside, zikwazi ukumelana nezingcindezi zemvelo ngokuhamba kwesikhathi.
"Ukusetshenziswa kwama-HDPE geomembranes ezinhlelweni zokuvala indawo yokulahla imfucuza kuye kwabonisa ukuthi kunciphisa kakhulu ingozi yokungcola kwemvelo." -
Environmental Protection Agency
Izincazelo Zokugcinwa Kwemfucuza Eyingozi
Ukugcinwa kwemfucuza eyingozi kufuna ama-HDPE geomembranes akhethekile ahlangabezana nezincazelo eziqinile. Lawa ma-geomembranes kumele akwazi ukumelana namakhemikhali akhona emgqomeni futhi kumele afakwe ngezindlela zokuhlanganisa eziqondile ukuqinisekisa ubuqotho.
Specification | Isidingo |
Ubukhulu | Ubuncane obungu-1.5 mm (60 mil) |
Ukumelana Namakhemikhali | Kufanele imelane namakhemikhali ayingozi |
Indlela Yokuhlanganisa | Ukushisela okubili noma i-wedge |
Izici Zokuklama Izinhlelo Zokuqoqa Ukuvuza
Izinhlelo zokuqoqa ukuvuza ziyingxenye ebalulekile yokuklama indawo yokulahla imfucuza, okudinga ukucatshangelwa ngokucophelela ukujiya kwe-HDPE geomembrane nokufakwa kwayo. I-geomembrane kufanele ihambisane nokuvuza futhi imelane nokubhoboza nokudabuka.
Izinto ezibalulekile zokuklama zihlanganisa:
- Ukujiya kwe-Geomembrane nezakhiwo zezinto
- Ukwakheka kwe-Leachate nokusebenzisana okungaba khona kwamakhemikhali
- Izindlela zokufaka nezindlela zokuhlanganisa
Ngokuklama ngokucophelela izinhlelo zokuqoqa amanzi amdaka ngokucaciswa okufanele kwe-HDPE geomembrane, izindawo zokuphatha udoti zinganciphisa ubungozi bemvelo futhi ziqinisekise ukuthobela izimfuno zomthetho.
Izicelo Zokugcina Amanzi kanye Nobukhulu Be-HDPE Geomembrane Obunconyiwe
Ukuphathwa kahle kwamanzi kubalulekile ezicelo eziningi, futhi i-HDPE geomembranes inikeza isixazululo esiguquguqukayo nesisebenzayo. Izakhiwo zokuphathwa kwamanzi ezifana namachibi, amachibi amakhulu, imisele, namachibi okugcina amanzi zidinga izendlalelo ezingavimbela ukuvuza futhi ziqinisekise ukuqina ngokuhamba kwesikhathi. Ubukhulu be-HDPE geomembrane buyinto ebalulekile kulezi zicelo, njengoba buthinta ngqo ukusebenza kwesendlalelo nokuphila kwaso isikhathi eside.
Izendlalelo Zamachibi Namachibi Amakhulu: Ukulinganisa Izindleko Nokusebenza
I-Pond ne-lake liners zisetshenziselwa ukuvimbela ukulahleka kwamanzi ngokuhamba emhlabeni. Kulokhu, ubukhulu obuphakanyisiwe be-HDPE geomembrane ngokuvamile buphakathi kuka-0.75 mm no-1.5 mm, kuye ngesisindo somzimba wamanzi kanye nezimo zesayithi. Ubukhulu obungu-0.75 mm (30 mil) ngokuvamile bufanele ama-pond amancane, kanti ama-lake amakhulu angase adinge u-1.0 mm (40 mil) noma ubukhulu obukhulu ukuze kuqinisekiswe ukuvikelwa okwanele ngokumelene nezikhala nezindonga eziphukile.
I-Canal Linings: Ukubhekana Nezinkinga Zokuhamba Nokuguguleka
I-Canal linings ibalulekile ekunciphiseni ukulahleka kwamanzi ezinhlelweni zokufafaza nasekuqinisekiseni ubuqotho besakhiwo se-canal. Ama-HDPE geomembranes asetshenziswa ku-canal linings kumele akwazi ukumelana namandla okuguguleka kwamanzi ahamba. Ubukhulu obungu-1.0 mm (40 mil) kuya ku-1.5 mm (60 mil) kuvame ukuphakanyiswa, kanti ukukhetha okukhethekile kuye ngokuqhuba kwamanzi nasekutholakaleni kwezinto ezithambile emanzini.
Izikhwama Zamanzi: Izixazululo Zokugcina Amanzi Ngaphakathi Kwezindawo Ezinkulu
Izikhwama zamazinga zisetshenziswa emaphrojekthini amakhulu okugcina amanzi, adinga izindawo ezinkulu zokumboza kanye nokumelana okuphezulu. Ezinhlelweni zokugcina amanzi, ubukhulu be-HDPE geomembrane obuphakathi kuka-1.5 mm (60 mil) no-2.0 mm (80 mil) kuvame ukunconywa. Izinto ezinzima zinikeza ukumelana okwandisiwe ekucindezelweni nasekukhathaleni, kanye nokuvikela okungcono ekonakaleni kwemvelo.
Izici Zamanzi Ezihlotshisiwe Nezinhlelo Zokufuya Izinhlanzi
Ukuze kube nezici zokuhlobisa amanzi nezicelo zokufuya izilwane, ukukhethwa kokukhululeka kwe-HDPE geomembrane kuthonywa izinto ezifana nezithombe, ivolumu yamanzi, nezinto eziphathelene nezinto eziphilayo. Izinto ezincane (0.5 mm kuya ku-0.75 mm) zingasetshenziswa ezindaweni zokuhlobisa ezincane, kanti izindawo zokufuya izilwane zingase zidinge ama-liners anokukhululeka okukhulu (1.0 mm noma ngaphezulu) ukuze kuhlangabezane nezidingo zokuphila kwamanzi futhi kuqinisekiswe ukuqina.
Izidingo Zokukhululeka kwe-HDPE Geomembrane Emigodini naseMkhakheni Wezimboni
Ama-HDPE geomembranes asetshenziswa kabanzi emigodini nasezimbonini, lapho ukukhululeka okufanele kubalulekile ukuze kuqinisekiswe ukuvikelwa kahle nokuphepha kwemvelo. Ukukhululeka kwalawa ma-geomembranes kuthinta ngqo ukuqina kwawo nokusebenza kwawo ezinhlelweni ezahlukene.
Ama-Heap Leach Pads kanye Nezinhlelo Zokuhlanganisa Izixazululo
Izindawo zokukhipha izimbiwa nge-heap leach yingxenye ebalulekile emisebenzini yokumba izimbiwa, ezidinga ama-HDPE geomembranes angamelana nezinqubo zamakhemikhali ezibandakanyekayo. Ukuqina okungu-1.5 mm (60 mil) kuvame ukutuswa ezindaweni zokukhipha izimbiwa nge-heap leach ukuqinisekisa ukuvikelwa okwanele ngokumelana nokuvuza nokubola kwamajubane. Izinhlelo zokuqoqa isisombululo ngaphansi kwezindawo ezinjalo nazo zizuzwa kuma-geomembrane liners aqinile.
Isicelo | Ukuqina Okutuswayo | Izinto Ezibalulekile Okufanele Zicatshangelwe |
Amaduku Okukhipha Inhlabathi (Heap Leach Pads) | 1.5 mm (60 mil) | Ukumelana namakhemikhali, ukuqina |
Izinhlelo Zokuqoqa Izixazululo | 1.0 mm (40 mil) | Ukuguquguquka, ukumelana namakhemikhali |
Izindawo Zokugcina Imfucuza kanye Nokuvikelwa Kwemvelo
I-Tailings impoundments igcina udoti lwezokumbiwa, kudingeka ama-geomembranes avimbela ukungcoliswa kwemvelo. Ubukhulu be-1.0 mm kuya ku-1.5 mm busetshenziswa ngokuvamile, kuye ngama-conditions athile endaweni kanye nobunjalo be-tailings. Ama-geomembrane liners asebenza kahle ku-tailings impoundments abalulekile ekuvimbeleni ukuvuza emanzini aphansi.
Ukugcina Okuphindwe Kabili Kwezinto Zamakhemikhali
Ezindaweni zezimboni, ukugcinwa kwesibili kwezinto ezigcinwa kizo amakhemikhali kubalulekile ukuvimbela izinhlekelele zemvelo. Ama-HDPE geomembranes anobukhulu obungu-1.0 mm (40 mil) avame ukusetshenziswa kule njongo, ahlinzeka ngomgoqo othembekile wokuvimbela ukuvuza kwamakhemikhali.
Amachibi Amanzi Okucubungula Namachibi Okubilisa
Amachibi amanzi okucubungula namachibi okubilisa ezimayini nasemisebenzini yezimboni adinga ama-geomembranes angamelana nokubola kwamakhemikhali kanye nengcindezi yomzimba. Ukuqina okungu-0.75 mm kuye ku-1.0 mm kuvame ukusetshenziswa, kulinganisa izindleko nokusebenza.
Ngokukhetha ukuqina okufanele kwe-HDPE geomembrane kwezicelo zezimayini nezimboni, abasebenzi bangaqinisekisa ukuvikelwa kwemvelo, ukusebenza kahle, kanye nokuthobela izindinganiso zemithetho.
Izinto Okufanele Zicatshangelwe Ngesikhathi Sokufakwa Ngokusekelwe Ekuqineni kwe-HDPE Geomembrane
Ukufakwa kahle kubalulekile ekusebenzeni kwe-HDPE geomembranes, kungakhathalekile ukuthi ubukhulu bayo. Inqubo yokufakwa ingathinta kakhulu ukuqina nokusebenza kahle kwe-geomembrane ezinhlobonhlobo zezicelo, kusukela ekuphathweni kukadoti kuya ekugcinweni kwamanzi.
Amasu Okubamba Nokuthulula Wobukhulu Obuhlukahlukene
Ukubamba nokuthulula i-HDPE geomembranes kudinga ukuhlelwa nokwenziwa ngokucophelela. I-geomembranes enobukhulu obuncane (0.5 mm kuye ku-0.75 mm) kulula ukulimala futhi idinga ukuphathwa ngobumnene ukuze kugwenywe izinyembezi nokubhoboza. Ngokuphambene, i-geomembranes enobukhulu obukhulu (1.5 mm kuye ku-2.0 mm) inamandla kakhulu kodwa ingadinga imishini enamandla kakhulu ukuze ithululwe.
Indlela yokuthulula kufanele ikhethwe ngokuya ngezimo zesiza nobukhulu be-geomembrane. Ngokwesibonelo, ezindaweni ezinomoya onamandla, ukuqinisa i-geomembrane ngesikhathi sokuthulula kubalulekile ukuze kugwenywe ukulimala.
Amasu Okuhlanganisa Nokuqinisekisa Ikhwalithi
Ukuhlanganisa kuyinto ebalulekile ekufakweni kwe-HDPE geomembrane. Izindlela ezimbili eziyinhloko zokuhlanganisa zisetshenziswa: i-fusion welding kanye ne-extrusion welding.
Izindlela ze-Fusion Welding
I-Fusion welding ihlanganisa ukushisa imiphetho ye-geomembrane ukudala ukubopha okungenamihlehle. Le ndlela isebenza kahle kakhulu ezindebeni eziningi ze-HDPE geomembrane futhi inikeza umhlehle oqinile, ohlala njalo.
Izicelo ze-Extrusion Welding
I-Extrusion welding isetshenziselwa ukulungisa kanye nokuhlanganisa ezindaweni lapho i-fusion welding ingasebenzi khona. Ihlanganisa ukufaka umucu we-HDPE enyibilikile endaweni yomhlehle, idala ukubopha okuqinile.
Ukuqinisekiswa kwekhwalithi kubaluleke kakhulu ekuhlanganiseni. Izindlela ezifana nokuhlolwa okungonakalisi (isibonelo, ukuhlolwa kokucindezela komoya nokuhlolwa kwe-vacuum) zisetshenziselwa ukuqinisekisa ubuqotho bezindawo ezihlanganisiwe.
Izinqubo Zokuhlola Izinto Ezinezinhlobonhlobo Ezihlukahlukene Zokujiya
Izinqubo zokuhlola ziyahlukahluka kuye ngokujiya kwe-HDPE geomembrane. Ama-geomembranes ajiyile angadinga ukuhlolwa okuqinile ngenxa yezicelo zawo ezibalulekile. Izivivinyo ezijwayelekile zihlanganisa izilinganiso zokujiya, izivivinyo zamandla okudonsa, kanye nezivivinyo zokuqinisekisa ubuqotho bezindawo ezihlanganisiwe.
Ukujiya kwe-Geomembrane (mm) | Izivivinyo ezinconyiwe | Ukuphindaphinda |
0.5 - 0.75 | Ukhulu, Amandla Okwelula | Njalo nge-1000 m |
1.0 - 1.5 | Ukhulu, Amandla Okwelula, Ubuqotho Besikhungo | Njalo nge-500 m |
1.5 - 2.0 | Ukhulu, Amandla Okwelula, Ubuqotho Besikhungo, Ukumelana Nokubhoboza | Njalo nge-200 m |
Izinselelo Ezivamile Zokufaka Nezixazululo
Izinselelo ezivamile ngesikhathi sokufakwa kwe-HDPE geomembrane zifaka ukuphatha ama-wrinkles, ukuvimbela ukuhlinzwa, nokwenza uqinisekise ukuhlanganiswa okufanele. Izixazululo zifaka phakathi ukusebenzisa izindlela ezifanele zokufaka, ukugcina indawo yokusebenza ihlanzekile, nokusebenzisa abantu abanekhono ekuhlanganiseni nasekuhloleni.
Ngokuqonda lezi zinto zokufaka nokwenza izinqubo zibe ngokwezinga elithile le-HDPE geomembrane, abafaki bangaqinisekisa impumelelo yephrojekthi.
Isiphetho: Ukukhetha Ubukhulu obufanele be-HDPE Geomembrane
Ukukhetha ubukhulu obufanele be-HDPE geomembrane kubalulekile empumelelweni yamaphrojekthi ahlukahlukene, okubandakanya ukuphathwa kukadoti, ukugcinwa kwamanzi, kanye nezicelo zemayini. Njengoba kuxoxiwe, ubukhulu be-HDPE geomembrane bunomthelela omkhulu ekusebenzeni kwayo, ukuqina, kanye nokonga izindleko jikelele.
Ngokuqonda izici kanye nezinzuzo ze-HDPE geomembranes, kanye nezinto ezithinta ukukhethwa kobukhulu, onjiniyela bamaphrojekthi bangenza izinqumo ezinolwazi. Izinto ezibalulekile zihlanganisa izidingo zamaphrojekthi, izimo zemvelo, isikhathi esilindelekile sokuphila, kanye nokuthobela imithetho.
Ukwenza ukukhetha okufanele kobukhulu be-HDPE geomembrane kuqinisekisa impumelelo yephrojekthi ngokunciphisa ubungozi bokuvuza, ukukhulisa ubuqotho bokugcinwa, nokwenza ngcono ukusebenza kwesikhathi eside. Noma ngabe i-landfill liner, i-pond liner, noma i-heap leach pad, ukukhetha ubukhulu obufanele kubalulekile.
Ngokuhlola ngokucophelela izidingo ezithile zokusebenza nokucabangela imihlahlandlela echazwe, ochwepheshe bangathola imiphumela ephumelelayo. Ukukhetha ubukhulu obufanele be-HDPE geomembrane kunomthelela empumelelweni yephrojekthi yonke, kuhlinzeka ngesisombululo esithembekile nesisebenziseka kahle ezidingweni zokugcina.
FAQ
Yini ubukhulu obufanele be-HDPE geomembrane ezinhlelweni zokufaka imfucumfucu?
Ubukhulu obufanele bezinhlelo zezendlalelo zezindawo zokulahlwa kwemfucuza buya ngezimfuno zomthetho nezimo zesayithi, kodwa ngokuvamile buvela ku-1.0 mm kuye ku-2.0 mm.
Ubukhulu be-HDPE geomembrane bungathinta kanjani ukuqina kwayo?
I-HDPE geomembrane enobukhulu obukhulu ngokuvamile inikeza ukuqina okukhulu nokumelana nokubhoboza, ukudabuka, nezinye izinhlobo zomonakalo, iqinisekisa impilo yesevisi ende.
Yiziphi izinketho ezijwayelekile zobukhulu be-HDPE geomembrane ezitholakalayo?
Izinketho zobukhulu ezijwayelekile zivela ku-0.5 mm kuye ku-2.0 mm, kanti ubukhulu obuvamile buhlanganisa u-0.75 mm, u-1.0 mm, u-1.5 mm, no-2.0 mm.
Ngingakukhetha kanjani ubukhulu obufanele be-HDPE geomembrane kuphrojekthi yami?
Ukukhetha kuncike ezintweni ezifana nezidingo zephrojekthi, izimo zemvelo, isikhathi esilindelekile sokuphila, kanye nokuthobela imithetho.
Yibuphi ubukhulu be-HDPE geomembrane obunconyiwe ezinhlelweni zokugcina amanzi?
Ezinhlelweni zokugcina amanzi, ubukhulu obungu-0.75 mm kuya ku-1.5 mm buvame ukunconywa, kuncike ezinhlelweni ezithile kanye nezimo zesayithi.
Ingabe ama-HDPE geomembranes angasetshenziswa ekugcinweni kwemikhiqizo enobungozi?
Yebo, ama-HDPE geomembranes avame ukusetshenziswa ekugcinweni kwemikhiqizo enobungozi, ubukhulu bawo buvame ukuba phakathi kuka-1.0 mm kuya ku-2.0 mm.
Ungathinta kanjani izinga lokushisa ukukhethwa kobukhulu be-HDPE geomembrane?
Ubukhulu bezinga lokushisa bungathinta ukusebenza kwe-geomembrane, futhi ukukhethwa kobukhulu kufanele kucatshangelwe ukunweba okushisayo kanye nezinto ezingadala ukwehla.
Yiziphi izinto okufanele kucatshangelwe lapho kufakwa ubukhulu obuhlukene be-HDPE geomembrane?
Iziphetho zokuphatha, ukufakwa, ukuhlanganisa, nokuhlola ziyahlukahluka kuye ngokujiyile, futhi abafaki kufanele bazi ngalezi zici ukuze baqinisekise ukufakwa okuphumelelayo.
Ingabe kukhona izindinganiso zemboni zokuqina kwe-HDPE geomembrane?
Yebo, izindinganiso ezahlukahlukene zemboni neziqondiso, njengezivela ku-American Society for Testing and Materials (ASTM) kanye neGeosynthetic Institute (GSI), zinikeza izincomo zokukhethwa kokuqina kwe-HDPE geomembrane.
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