Emhlabeni wobunjiniyela bomphakathi kanye nemvelo, zimbalwa izinto ezibaluleke njengama-geomembrane, okuyizinto zokufaka ezenziwe nge-synthetic eziguquguqukayo eziklanyelwe ukuvimbela uketshezi, amagesi, kanye nokungcola ukuthi kungadluli emhlabathini. Nsuku zonke, izindawo zokulahla udoti, amadamu okugcina amanzi, imisebenzi yezimayini, kanye nezindawo zezimboni zithembela kulezi zivimbelo ezingangeneki ukuze zivikele inhlabathi namanzi angaphansi komhlaba ezintweni eziyingozi ebezingabangela umonakalo wemvelo wamashumi eminyaka. Ukwehluleka okukodwa ohlelweni lokuvimbela kungabangela ukuhlanza okubizayo, izinhlawulo ezinzima zokulawula, kanye nokulimala okungenakulungiseka emvelweni yendawo, okuyisizathu esiqondile sokuthi abanikazi bamaphrojekthi emhlabeni wonke batshale imali ezixazululweni zokufaka zezinga eliphezulu. I-geomembrane yesimanje isisuka ekubeni yishejuli elula yeplastiki yaba into ye-geosynthetic eklanywe ngobuchwepheshe obuphezulu, eklanyelwe ngokunemba ukuze imelane namakhemikhali anolaka, isimo sezulu esibi kakhulu, kanye nokucindezela okungaguquki komshini. Njengoba imithetho yezemvelo ikhula iba nzima futhi ukuhlolwa komphakathi kukhula, ukukhetha isivimbelo esifanele akuseyona into yezobuchwepheshe kuphela kodwa isinqumo samasu esinquma ukuphila isikhathi eside, ukuphepha, kanye nokuhambisana nomthetho kwephrojekthi yonke. Kubakhi, abeluleki, kanye nezinhlangano zikahulumeni ngokufanayo, ukuqonda amakhono aphelele ama-geomembrane kuyisinyathelo sokuqala sokwakha ingqalasizinda ehlala amashumi eminyaka ngaphandle kokuvuza noma ukwehluleka kokunakekela.

I-geomembrane empeleni iyimembrane ye-polymeric ene-permeability ephansi kakhulu esetshenziswa njengesithiyo sokulawula ukuhamba koketshezi noma kwegesi, futhi ikhwalithi yayo echazayo ukungangeneki cishe ngokuphelele uma ifakwe futhi ishwele ngendlela efanele. Lawa ma-liner enziwa ngezinhlobonhlobo zama-polymer, kanti i-high-density polyethylene (HDPE) iyiyona ekhethwa kakhulu ezinhlelweni ezidinga kakhulu ngenxa yokulinganisela kwayo okukhethekile kwamandla, ukumelana namakhemikhali, kanye nempilo yokusebenza. Ezinye izinto ezivamile zifaka i-linear low-density polyethylene (LLDPE), enikeza ukuguquguquka okukhulu ezindaweni ezingalingani zaphansi, kanye ne-polyvinyl chloride (PVC), ebalulekile ngenxa yokulula kwayo ukuhlanganisa emisebenzini ethile engadingi kakhulu. Ngaphandle kokwakheka kwezinto, i-geomembrane kufanele ibonise izici ezimbalwa ezibalulekile, okuhlanganisa amandla okudonsa aphezulu, ukumelana nokubhobozwa nokudwengulwa, ukuzinza okuhle kwe-UV, kanye nekhono lokusebenza ngokuthembekile ezindaweni eziningi zokushisa. Abakhiqizi futhi bakhiqiza izindawo ezibushelelezi nezine-texture; ama-geomembrane ane-texture anikeza ukungqubuzana okuphezulu kwe-interface emithambekeni, kuyilapho amashidi abushelelezi ekhethwa kakhulu lapho ukushwelwa okuhle nokuhlanzeka kubaluleke kakhulu. Ukujiya kwe-geomembrane ngokuvamile kusuka ku-0.5 mm kuya ku-3.0 mm, futhi ukukhetha isilinganiso esifanele kuncike kwingcindezi ye-hydrostatic, izimo zaphansi, kanye nemvelo yokusebenza yephrojekthi ngayinye eyingqayizivele. Ngenxa yokuthi ukusebenza kwanoma yiluphi uhlelo lwesithiyo kuncike kulezi zici, amaqembu onjiniyela anomthwalo wemfanelo ahlala eqinisekisa ukuthi i-geomembrane yawo ekhethiwe ihlangabezana namazinga omhlaba aqashelwayo ngaphambi kokuzibophezela ekufakweni.

Ngaphakathi kwesigaba esibanzi sama-liner okugcina, ama-geomembrane e-HDPE agqama ngenxa yokuhambisana kwawo okuphezulu kwamakhemikhali, okuwenza abe yisinqumo esizenzakalelayo emaduzini kadoti kamasipala, izindawo zokulahla imfucuza eyingozi, kanye nezindawo zokukhuculula izimbiwa lapho i-leachate enolaka iyinsongo eqhubekayo. Ama-geomembrane e-LLDPE, ngokuphambene, anikeza ukunwebeka okuthuthukisiwe nokuhambisana, okuwenza alungele ama-liner amachibi kanye nokufakwa okufanayo okuhlala emhlabathini othambile noma ongalingani okungase kubhoboze izinto eziqinile. Lapho iphrojekthi idinga ukuvikelwa okunezingqimba, onjiniyela bavame ukuhlanganisa i-geomembrane nama-geosynthetic clay liner noma ama-geotextile okuvikela ukuze bakhe umgoqo ohlanganisiwe ohlanganisa amandla ezinto ezahlukene. Kubakhasimende afuna lonke uhla lwezinketho, i-I-Geomembrane uhla lwemikhiqizo olusuka ku-Geofantex luhlanganisa kokubili izinhlobo ze-HDPE ne-LLDPE, ngayinye ilungiselelwe ukuhlangabezana nezidingo ezithile zephrojekthi. Ukuqonda le mehluko kuvumela abacacisi ukuthi bagweme kokubili ukwakha ngokweqile, okumosha isabelomali, nokwakha ngaphansi, okubeka engcupheni ukwehluleka kwangaphambi kwesikhathi kanye nokuzibophezela.

Ukusebenza ngezindlela eziningi kwama-geomembrane kuchaza ukwamukelwa kwawo ngobubanzi ezimbonini eziningi kakhulu, futhi ukusetshenziswa ngakunye kudinga ukucatshangelwa ngokucophelela kwezinto zomshini namakhemikhali ze-liner. Ezindaweni zokulahla udoti zikamasipala nezasezimbonini, i-geomembrane isebenza njengengxenye eyinhloko ye-liner yaphansi kanye nohlelo lokugcina lokugcina, ibamba i-leachate enobuthi ngaphambi kokuba ingcolise ama-aquifer azungezile. Izindawo zokugcina amanzi, ezihlanganisa amachibi okunisela, izitsha zamanzi okuphuza, namachibi okuhlobisa, zincike kuma-liner amachibi aqinile ukuze kuvinjelwe amanzi abalulekile ukuthi angachitheki kuyilapho kugcinwa amazinga ekhwalithi yamanzi. Imboni yezimayini incike kakhulu kulezi zithiyo kuma-heap leach pads, izindawo zokugcina i-tailings, nemigudu yezixazululo, lapho i-liner kufanele imelane namakhemikhali adla ngokugqamile isikhathi eside. Imisebenzi yezilwane zasemanzini, njengamapulazi ezinhlanzi nezimfanzi, isebenzisa ama-geomembrane ukwakha izindawo zamachibi ezinempilo, ezihlanzeka kalula ezikhulisa ukusebenza kahle kokukhiqiza futhi zivimbele ukudluliswa kwezifo phakathi komhlabathi namanzi. Izitshalo zokuhlanza amanzi angcolile zifaka lawa ma-liner angangeneki emachibini, ezitsheni zokulinganisa, nasezindaweni zokugcina udaka, ziqinisekisa ukuthi amanzi angcolile ahlanzwe kancane awafinyeleli endaweni ezungezile.

Ngaphandle kwale mikhakha eyinhloko, ama-geomembrane nawo adlala indima ebalulekile kwezolimo ekufakweni kwezindonga zemigudu yamanzi nasezitshalweni ze-biogas digester, embonini kawoyela negesi ekuvimbeleni okwesibili ezindaweni ezizungeze amathangi okugcina, kanye nakwezokwakha ekugcinweni kwamanzi kwesikhashana nasekuvikeleni izisekelo. Ngayinye yalezi zinhlelo zokusebenza incike esithembisweni esiyisisekelo esifanayo se-geomembrane: ukuhlukaniswa okuphelele nokuhlala isikhathi eside kwezinto eziqondisiwe kusuka endaweni ezungezile. Uma isetshenziswa njengengxenye yohlelo lwe-geosynthetic oluklanywe kahle, lezi zinto zokuvikela zinciphisa kakhulu umkhondo wemvelo wemisebenzi yezimboni futhi zisiza izinkampani ukuthi zanelise izibopho zokuhambisana ezikhulayo njalo. OkuhlobeneIndawo Yokulahla Imfucuza kanye Izimayini amakhasi ezixazululo agqamisa ukuthi le mikhakha emibili edinga kakhulu izuza kanjani ekuhlelweni okukhethekile kwama-geomembrane okuklanyelwe ukuthembeka okuphezulu.

I-Geofantex Geosynthetics isizimisele njengomkhiqizi othembekile wama-geomembrane asebenza kahle kakhulu, ekhiqiza amashidi abushelelezi futhi anokuthungwa ahlangabezana nezidingo eziqinile zamaphrojekthi okulahlwa kwemfucuza, ezimayini, nokugcinwa kwamanzi emhlabeni wonke. Ama-geomembrane ethu e-HDPE ayisihloko asenziwe nge-resin yokuqala esezingeni eliphezulu futhi ahlanganiswe nokukhala okulinganiselwe ngokucophelela ukuze kulethwe ukumelana okumangalisayo ne-UV nokuqina kwesikhathi eside ezinhlelweni eziveziwe. Amakhasimende angacacisa ukujiya okusuka ku-0.75 mm kuya ku-2.5 mm, ngobubanzi bamarola ajwayelekile afinyelela ku-7 metres okunciphisa inani lemithungo yasensimini futhi ngalokho kunciphise kokubili isikhathi sokufaka namaphoyinti okungase avuze. Ngaphezu kwe-HDPE, sinikela ngama-geomembrane e-LLDPE amaphrojekthi adinga ukuguquguquka okuthuthukisiwe, futhi wonke amashidi ethu ayatholakala anezingaphezulu ezibushelelezi noma ezinokuthungwa ukuze kuhlangatshezwe nezidingo zokuzinza kwemithambeka. Yonke irola ekhiqizwa ezikhungweni zethu ibonisa ukulandela okuqinile izindinganiso zamazwe ngamazwe zekhwalithi, okuqinisekisa ukungaguquguquki kokujiya, amandla emishini, nokumelana namakhemikhali kusukela kuqoqo lokuqala kuya kwelokugcina. Ukuze uthole ukubuka okuningiliziwe kwezincazelo, izinqubo zokukhiqiza, neziqinisekiso zekhwalithi, i-HDPE Geomembrane ikhasi lihlinzeka ngemibhalo ephelele kanye nokuqondiswa kobuchwepheshe kubonjiniyela kanye namathimba okuthenga.

Ukukhetha ama-geomembrane e-Geofantex kuletha inzuzo yokuncintisana ebonakalayo ngenxa yezici eziningana ezakhiwe ngobuchwepheshe ezithinta ngqo ukusebenza kwephrojekthi kanye nezindleko eziphelele zobunikazi phakathi nempilo yesevisi ye-liner. Izakhiwo zethu ze-HDPE zifinyelela amandla okudonsa amangalisayo amelana nokudabuka nokubhobozwa, ngisho nalapho zifakwe phezu kwezindawo eziyinselele ezingaphansi eziqukethe amatshe abukhali noma imfucumfucu yokwakha. Ukumelana namakhemikhali okuhle kakhulu kwama-liner ethu kuqinisekisa ukuthi ngeke konakale lapho kuchayeka ku-leachate ene-asidi, amanzi okucubungula ane-alkaline, noma ukungcola okusekelwe ku-hydrocarbon okungabangela ukuthi ezinye izindlela ezisezingeni eliphansi zilahlekelwe ngokushesha. Ikhwalithi ephezulu yomthungo ingenye into ephawulekayo yendlela yethu yokukhiqiza, ngoba siyabona ukuthi ama-weld ayingxenye esengozini kakhulu kunoma yisiphi isithiyo se-geosynthetic ngakho-ke kufanele athole ukunakwa okuphezulu ngesikhathi sokukhiqiza. Ngempilo yesevisi ebikezelwayo edlula kude iminyaka engamashumi amabili ezinhlelweni eziningi, ama-geomembrane ethu avikela amaklayenti ezindlekweni ezinkulu nokuphazamiseka kokushintshwa ngaphambi kwesikhathi. Inhlanganisela yezinto zokuqala, ukulawulwa okunembile kobukhulu, nokuhlolwa okuphelele kusho ukuthi wonke umnikazi wephrojekthi uthola i-liner yokuqukatha angayethemba ngaphandle kokungabaza. Ukusebenza okuqinisekisiwe ezindaweni eziyinselele kwenze i-Geofantex yaba umlingani okhethwayo konjiniyela abafuna inani elingcono kakhulu phakathi nomjikelezo wempilo yonke yengqalasizinda yabo, futhi konke ukufakwa kusekelwa imibhalo eqinile yekhwalithi.

Ngisho ne-geomembrane enhle kakhulu izohluleka uma ifakwe ngendlela engafanele, yingakho i-Geofantex ihlinzeka ngomhlahlandlela ophelele wokufaka kanye nezinsizakalo zasendle ukuze kuqinisekiswe ubuqotho bohlelo lokugcina olusuqediwe. Ithimba lethu lobuchwepheshe lisebenza eduze nosonkontileka ngesikhathi sesigaba sokulungiselela indawo, linikeza izeluleko mayelana nokulinganiswa komhlabathi ongaphansi, ukususwa kwezimpande, nokubekwa kwezinto zokuvikela ukuze kwakhiwe isisekelo esihlanzekile nesizinzile se-liner. Sihlinzeka ngemigomo enemininingwane yokushisela yazo zombili izindlela ze-hot wedge ne-extrusion, sihambisana namakhono amaqembu okufaka anelayisensi ngemininingwane enembile yokushisa, ijubane, nezilungiselelo zengcindezi. Uma iphrojekthi yakho idinga ukusekelwa okukhethekile, ochwepheshe bethu bayatholakala ukuba baqondise imithungo ebucayi, benze ukuhlola okubhubhisayo nokungabhubhisi, futhi baqophe imiphumela yamarekhodi okuqinisekisa ikhwalithi. Siphinde sincoma ukuthi i-geomembrane ihlanganiswe nemikhiqizo ehambisanayo njenge-protectiveAma-Geotextile Alukiwe nge-PP ukuvikela isembozo ezingozini zokubhobozwa ngaphansi. Ngokuhlanganisa izinto zekhwalithi ephezulu nokuqondisa okuqinile kokufakwa, sinciphisa kakhulu ingozi yokuvuza okungase kucekele phansi lonke uhlelo lokuvikela imvelo, okunikeza abanikazi bamaphrojekthi ukuthula kwengqondo okuphelele kusukela ekuqaliseni kuze kufike ekwamukelweni kokugcina.

Uma kuhlolwa abahlinzeki be-geomembrane, amafemu obunjiniyela kanye neminyango yezokuthenga babheka ikhwalithi engaguquguquki, ukuhambisana nemithetho, kanye nozakwethu ongahlangabezana nezinhlelo zokulethwa ezinzima ngaphandle kokunciphisa ukusebenza. I-Geofantex Geosynthetics isebenzisa indawo yesimanje yokukhiqiza eqinisekisiwe yi-ISO, futhi sihlele uhlelo lwethu lokuphatha ikhwalithi ukuze silawule zonke izigaba kusukela ekuhlolweni kwezinto zokusetshenziswa kuze kufike ekupakishweni komqulu wokugcina. Iqoqo ngalinye lokukhiqiza lihlolwa ngohlelo oluphelele lokuhlola oluhlola ukuminyana, izakhiwo zokudonsa, ukumelana nokudabuka, namandla okubhoboza, futhi imiphumela igcinwa ngokucophelela futhi yabelwana namaklayenti uma kuceliwe. Izintengo zethu ziyancintisana ngoba sikhiqiza ngesilinganiso esikhulu futhi siphethe uchungechunge lwethu lokuhlinzeka ngokuqinile, futhi sidlulisela izinzuzo zokusebenza kahle ezivela kulokho ngqo kumaklayenti. Ukulethwa ngesikhathi kuyisisekelo sesithembiso sethu sesevisi, ngoba siqonda ngokugcwele ukuthi ukubambezeleka kokuthunyelwa kwe-liner kuhumusha ekubeni amaqembu asebenzayo angasebenzi, izinhlelo ezinwetshiwe, kanye nokweqa kwesabelomali samaphrojekthi okwakha. Ithimba lethu liletha amashumi eminyaka olwazi olusebenzayo ngezinto ze-geosynthetic emazweni amaningi, futhi lolu lwazi olusebenzayo luhlinzeka ngezincomo zonke esizenzayo ngesikhathi sesigaba sokucacisa. Ukuze ufunde kabanzi ngomlando wethu, izimiso zethu, namakhono ethu okukhiqiza, i-MAYELANA NATHI isigaba sinikeza ukuqonda okusobala mayelana nabantu nezinqubo ezingemuva kwemikhiqizo yethu.

Isilinganiso sangempela sanoma yimuphi umkhiqizo wokuvimbela ukungena kwamanzi ukusebenza kwawo ensimini, futhi ama-geomembrane e-Geofantex ahlanganise umlando omangalisayo wokufakwa okuphumelelayo ezimbonini ezahlukene nezimo zezulu ezahlukene. Ekwandiseni kwakamuva kwendawo yokulahla udoti oqinile kamasipala, i-HDPE geomembrane yethu enombhalo we-1.5 mm yacaciswa ohlelweni lokugcina lokugcina, lapho ivimbe ngempumelelo ukungena kwamanzi emvuleni ngenkathi imelana nokuhlehla okunamandla okuhambisana nokubola kukadoti. Umsebenzi omkhulu wezimayini wakhetha i-geomembrane yethu ebushelelezi engu-2.0 mm endaweni yokucwenga inqwaba yezinto ezihlanganisa ngaphezu kwamahektha ayisishiyagalombili, futhi isivikelo siye sagcina ukumelana namakhemikhali okungenasici naphezu kokuchayeka isikhathi eside ezixazululweni zokucwenga ezisekelwe ku-cyanide. Ama-liner ethu amachibi aguqule izitsha zobumba eziyinkinga zaba amadamu okugcina amanzi asebenzayo emisebenzini yokunisela kwezolimo, anciphisa ukulahlekelwa kokungena ngaphezu kwamaphesenti angu-95 uma kuqhathaniswa nezimo ezingenalayini. Izindaba zempumelelo ezifanayo ziyaqhubeka emkhakheni wokwelashwa kwamanzi angcolile, lapho ama-geomembrane ethu akha izithiyo ezibalulekile emachibini okulinganisa okufanele abhekane nemithwalo yamakhemikhali eguquguqukayo ngaphandle kokuwohloka. Ngayinye yale maphrojekthi inezinselelo zayo zobunjiniyela, nokho zonke zabelana ngomphumela ofanayo: ukuvikelwa okuthembekile, kwesikhathi eside okulethwa ngenhlanganisela yezinto zokwakha ezisezingeni eliphezulu kanye nezinqubo zokufaka eziqondiswayo. Izindaba ezinemininingwane, idatha yobuchwepheshe, nezithombe zamaphrojekthi ezivela kokunye ukufakwa ziyatholakala ku-Izifundo Zecala ikhasi lamathimba afuna ubufakazi ngaphambi kokuzibophezela.

Uku-oda isisombululo se-geomembrane yesiko ku-Geofantex kuyinqubo eqondile eklanyelwe ukuhambisa iphrojekthi yakho kusukela ekucacisweni kuya ekulethweni ngokushesha nangokucaca, futhi onjiniyela bethu bezentengiso bakulungele ukusiza kuzo zonke izigaba. Qala ngokuxhumana nethimba lethu ngemininingwane yephrojekthi yakho, okuhlanganisa ubukhulu be-liner, ukujiya okudingekayo, ukukhetha uhlobo lwendawo, nanoma yiziphi izimo ezikhethekile zamakhemikhali noma zemvelo ezingase zibe nomthelela ekukhethweni kwezinto. Ngokusekelwe kulolu lwazi, sizolungiselela isilinganiso esiphelele esihlanganisa intengo yomkhiqizo, ukuhlelwa kwamaroli, isikhathi sokuhola, kanye nezinketho zezokuthutha ukuze kuthunyelwe endaweni yakho noma kuphi emhlabeni. Ezingxenyeni eziyinkimbinkimbi, onjiniyela bethu bangahlinzeka ngezingxoxo zamahhala zobuchwepheshe ukukusiza ukuthi uhlole ukuthi i-HDPE, i-LLDPE, noma uhlelo oluyinhlanganisela olubandakanya ama-geosynthetic clay liners iyisinqumo esingcono kakhulu sezimo zakho. Sikulungele ngokulinganayo ukusekela ama-oda amancane e-liner yamachibi kanye namaphrojekthi amakhulu e-landfill amahektha amaningi, futhi yonke imibuzo ithola izinga elifanayo lokuqina kobuchwepheshe nokunakwa komuntu siqu. Ithimba lethu lizosebenza nawe ukuthuthukisa ubukhulu bamaroli nezindlela zokuthumela, ukunciphisa ukumosha kanye nezindleko zokuthutha kuyilapho kuqinisekisa ukuthi uthola kahle impahla edingwa ngosonkontileka bakho. Ukuqala ingxoxo, vele uthumele izidingo zakho ngefomu lemibuzo noma uxhumane ngqo ngeziteshi ezisohlwini lwethuXhumana ikhasi, futhi uzozwa kusenesikhathi kuchwepheshe oqeqeshiwe.

Ingqalasizinda yokuvala ingxenye yokutshalwa kwemali enkulu, futhi ukukhethwa kwe-geomembrane ethembekile kungenye yezinqumo ezibaluleke kakhulu umnikazi waphrojekthi azozithathela zona lapho evikela kokubili impahla yakhe kanye nemvelo. Kuyo yonke imigodi yokulahla udoti, amachibi, izikhungo zezimayini, amapulazi e-aquaculture, kanye nezitshalo zamanzi angcolile, isidingo sezinhlelo zokufaka ezingangeneki, ezimelana namakhemikhali, futhi ezihlala isikhathi eside asikaze sibe sikhulu njengoba izindinganiso zemvelo ziqhubeka ziqina emhlabeni wonke. I-Geofantex Geosynthetics iphendula lesi sidingo ngama-geomembrane e-HDPE ne-LLDPE asezingeni eliphezulu anikeza ukusebenza kwemishini okuhamba phambili embonini, ikhwalithi eqinisekisiwe, kanye nempilo yesevisi elinganiswa ngamashumi eminyaka hhayi iminyaka. Sisekela yonke iroli yempahla ngokukhiqiza okugunyazwe yi-ISO, ukuhlolwa okuqinile, amanani ancintisanayo, kanye nokwesekwa komhlaba wonke okusheshayo, siqinisekisa ukuthi uhlelo lwakho lokuvala lusebenza ngokungenasici kusukela osukwini lokuthunywa kuqhubeke. Kungakhathaliseki ukuthi udizayina isikhungo esisha noma ulungisa uhlelo oludala, ithimba lethu lobuchwepheshe likulungele ukukunikeza izincazelo, isiqondiso, kanye nokuhlinzekwa komkhiqizo okudingayo ukuze uthole umphumela oyimpumelelo. Sikumema ukuthi uhlole uhla lwethu olubanzi lwe-IMIKHIBO, cela ikhathalogi enemininingwane noma ibhroshu, futhi uxhumane nonjiniyela bethu namuhla ukuze uxoxe ngokuthi ama-geomembrane ethu angavikela kanjani iphrojekthi yakho elandelayo ngokuzethemba nokuthembeka.