A wurin rufe sharar gida
 A wurin rufe sharar gida |
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In-Situ Capping (ISC) of Subaqueous Waste wata hanyar gyaran da ba a cirewa ba ce don gurbataccen laka wanda ya haɗa da barin sharar a wurin da ware shi daga muhalli ta hanyar sanya Layer na ƙasa da / ko kayan aiki a kan gurbataccen sharar don hana ci gaba da yaduwar gurbataccen. In-situ capping yana ba da hanya mai amfani don gyara yankin da aka gurbata. Wani zaɓi ne lokacin da famfo da magani ya zama mai tsada sosai kuma yankin da ke kewaye da shafin tsarin makamashi ne mai ƙarancin makamashi. Zane na murfin da kuma halin da ke kewaye da shi suna da mahimmanci kuma suna fitar da yiwuwar dukkan aikin. Akwai lokuta masu yawa masu nasara kuma za su kasance a nan gaba yayin da fasahar ke fadadawa kuma ta kara shahara. In-situ capping yana amfani da dabarun da aka haɓaka a cikin ilmin sunadarai, ilmin halitta, injiniyan geotechnical, Injiniyan muhalli, da injiniyan getechnical na muhalli.
Gabatarwa
[gyara sashe | gyara masomin]Contaminants da ke cikin turɓaya har yanzu suna haifar da haɗari ga muhalli da lafiyar ɗan adam. Wasu daga cikin tasirin kai tsaye akan rayuwar ruwa wanda za'a iya danganta shi da gurbataccen laka sun haɗa da "ci gaban ciwon daji a cikin kifi da aka fallasa ga polycyclic aromatic hydrocarbons a cikin laka. " Wadannan tsaunuka masu haɗari suna buƙatar gyarawa. Yawancin lokaci akwai zaɓuɓɓuka huɗu kawai don gyarawa:
- Fasahar da ba za a cirewa ba Tsayawa a wuri (In-Situ Capping) Magani a wuri
- Ƙuntatawa a cikin wuri (In-Situ Capping)
- Magani a wurin
- Fasahar cirewa [1] Cirewa da hanawa Cirewa
- Cirewa da hanawa
- Cirewa da magani
Ana iya yin murfin abubuwa daban-daban da yawa, gami da amma ba'a iyakance su ga yashi, dutse, geotextiles, da yadudduka masu yawa na waɗannan zaɓuɓɓuka ba.
Akwai hanyoyi da yawa da za a iya gabatar da gurɓataccen abu a cikin turɓaya zuwa mahalli. Wadannan hanyoyi sun hada da amma ba'a iyakance su ba ga advection, watsawa, kwayoyin benthic da ke haɗuwa da sake aiki na saman layin da aka gurbata, da sake dakatar da laka ta hanyar dakarun subaquatic daban-daban. In-situ capping (ISC) na iya gyara duk waɗannan mummunan sakamako tare da ayyuka uku na farko:[2]
- Keɓewar gurbataccen laka daga yanayin benthic; wannan yana hana gurbataccen yaduwar abinci. Wannan keɓewar gurɓataccen shine mafi mahimmancin abin da ke rage haɗarin fallasawa.[3]
- Rigakafin sake dawowa da jigilar gurbataccen, wanda ake kira daidaitawar turɓaya. [1]
- Rage kwararar gurbataccen abu a cikin ginshiƙi na ruwa, wanda aka fi sani da keɓewar sinadarai.[1]
Na huɗu, ko da yake ba lallai ba ne, aikin ƙwanƙwasawa ya kamata ya zama "ƙarfafawa ga dabi'un mazauni". Wannan bai kamata a sanya shi babban burin ba sai dai a cikin matsanancin yanayi. Ana iya cimma wannan ta hanyar canza halaye na saman murfin don "karfafa nau'ikan da ake so ko hana nau'ikan marasa so".
Binciken shafin
[gyara sashe | gyara masomin]Manufofin gyara
[gyara sashe | gyara masomin]Yana da matukar muhimmanci a kimanta shafin da manufofi na takamaiman aikin don sanin ko ISC ita ce hanyar da ta dace don amfani. Na farko, yana da mahimmanci a gano idan ISC za ta gamsar da duk manufofin gyara da ake so. Don tantance ko ISC zai gamsar da manufofin gyara yana da mahimmanci a duba manyan ayyuka uku da aka jera a baya don ISC. Don aikin farko yana da mahimmanci a fahimci cewa "ikon ISC na ware kwayoyin ruwa daga gurɓataccen laka ya dogara da" sanya sabbin gurɓatawar laka da aka ajiye a kan murfin. Idan an sanya gurbataccen laka a saman murfin to an gina murfin don raba shi zuwa gurbataccen yadudduka. Don haka, "ya kamata a yi la'akari da ISC ne kawai idan an aiwatar da ikon sarrafa tushen. "Tsayar da gurbataccen laka na iya zama aikin ƙira idan burin gyara shine don hana mummunar tasirin muhalli saboda "sake dawowa, sufuri da sakewa" na gurbataccen ruwa zuwa wasu yankuna masu nisa. Bugu da ƙari, idan ana so a yi amfani da manufar gyarawa, to manufar ISC na iya zama ware gurbataccen ƙasa daga mahalli da ke kewaye da ita, don haka sarrafa mahalli na gurbataccen ƙasar kuma haifar da yiwuwar lalacewar gurbataccen.