Ukungcoliswa komoya namanzi kusalokhu kuphakathi kwezinkinga zomhlaba ezicindezela kakhulu, okubeka imvelo ebalulekile, amaketango okudla, kanye nemvelo edingekayo ukuze ukuphila komuntu kube sengcupheni.
Ukungcoliswa kwamanzi kuvame ukuvela kuma-ion ensimbi esindayo, ukungcola kwe-organic refractory, kanye namagciwane—ukungcola okunobuthi, okuyingozi okuvela ezimbonini nasemanzini angcolile angaboli ngokwemvelo. Le nkinga ihlanganiswa ukunwetshwa kwamanzi emzimbeni okungaholela ezimweni ezikahle zokuzalana kwamagciwane amaningi, kuqhubeke kungcolisa futhi kube nomthelela omubi izinga lamanzi.
Ukungcoliswa komoya ngokuyinhloko kuhlanganisa ama-volatile organic compounds (VOCs), ama-nitrogen oxides (NOx), ama-sulphur oxides (SOx), kanye ne-carbon dioxide (CO).2) - izinto ezingcolisayo ezibangelwa ukushiswa kwezinto ezimbiwa phansi. Umthelela we-CO2njengoba igesi ebamba ukushisa iye yabhalwa kabanzi, ngamanani abalulekile e-CO2ezithinta kakhulu isimo sezulu soMhlaba.
Uhlu lobuchwepheshe nezindlela seluthuthukisiwe ukuze kuphendulwe lezi zinkinga, okuhlanganisa i-carbon adsorption ecushiwe, i-ultrafiltration, kanye nezinqubo ze-oxidation eziphambili (AOPs) okuhloswe ngazo ukubhekana nezinkinga zokungcoliswa kwamanzi.
Kuhlelo lwe-adsorption lwe-VOCs, uzothola ukuthi i-Columnar activated carbon iyingxenye ebalulekile futhi edumile esetshenziswa ezinhlelweni zokwelapha ze-VOCs njengemidiya ye-adsorbent ebiza izindleko.
Ikhabhoni ecushiwe, ekusetshenzisweni kwezimboni okusabalele kusukela ekupheleni kweMpi Yezwe I, maphakathi nawo-1970 kwakuyinketho ekhethwayo yokulawula ukungcoliswa komoya kwama-VOC ngenxa yokukhethwa kwawo ekukhipheni umhwamuko wemvelo emifudlaneni yegesi ngisho nalapho kukhona amanzi.
Uhlelo oluvamile lwe-carbon-bed adsorption—oluthembele ekuvuselelweni kabusha kweqembu—lungaba indlela ephumelelayo yokuphinda uthole izincibilikisi ngenani lazo lezomnotho. I-Adsorption yenzeka lapho umhwamuko we-solvent uhlangana nombhede wekhabhoni futhi uqoqwa endaweni enezimbotshana ecushwe ikhabhoni.
I-Carbon-bed adsorption isebenza ngempumelelo emisebenzini yokubuyisela i-solvent ezindaweni ezincibilikisiwe ezingaphezu kuka-700 ppmv. Ngenxa yezidingo zokungenisa komoya kanye namakhodi omlilo, umkhuba ojwayelekile bekuwukugcina ukugxilisa kwezincibilikisi ngaphansi kuka-25% womkhawulo ophansi weziqhumane (LEL).
Isikhathi sokuthumela: Jan-20-2022