Tlhokahalo e ntseng e eketseha ea metsi a hloekileng e baka khaello ea metsi lefatšeng ka bophara. Ha palo ea baahi e ntse e eketseha 'me batho ba bangata ba fallela litoropong, lits'ebeletso tsa metsi li tobane le mathata a mangata a amanang le phepelo ea metsi le ts'ebetso ea tsona ea ho hloekisa. Tsamaiso ea metsi ea lehae e ke ke ea hlokomolohuoa, joalo ka ha Machaba a Kopaneng a hakanya hore litoropo li nka karolo ea 12 lekholong ea metsi a hloekileng. [1] Ntle le tlhoko e ntseng e hola ea metsi, lits'ebeletso li ntse li sokola ho latela melao e mecha mabapi le ts'ebeliso ea metsi, maemo a tlhoekiso ea metsi a litšila, le mehato ea ts'ebetso ha e ntse e tobane le lits'ebetso tsa botsofali le lichelete tse fokolang.
Liindasteri tse ngata le tsona li kotsing ea khaello ea metsi. Metsi a atisa ho sebelisoa mekhoeng ea tlhahiso bakeng sa ho pholisa le ho hloekisa, 'me metsi a litšila a hlahisoang a tlameha ho hloekisoa pele a ka sebelisoa hape kapa a khutlisetsoa tikolohong. Lintho tse ling tse silafatsang ho thata ka ho khetheha ho li tlosa, tse kang likaroloana tsa oli e ntle, 'me li ka etsa masalla a hlokang phekolo e khethehileng. Mekhoa ea ho hloekisa metsi a litšila ea indasteri e tlameha ho boloka chelete e ngata 'me e khone ho hloekisa metsi a mangata a litšila ka mocheso o fapaneng le maemo a pH.
Ho finyella ho hloekisa ka mokhoa o phahameng ke karolo ea bohlokoa ea ho hlahisa moloko o latelang oa tharollo ea metsi. Li-membrane tsa ho sefa tse tsoetseng pele li fana ka mokhoa oa kalafo o sebetsang hantle haholo le o baballang matla, 'me bahlahisi ba ntse ba tsoela pele ho theha mahlale a macha ho fihlela litlhoko tsa liindasteri le masepala le ho lula ka pele ho maemo a fetohang a taolo bakeng sa paballo le tšebeliso ea metsi hape.
Phetoho ea boemo ba leholimo e ama phepelo ea metsi le boleng ba metsi. Lifefo tse matla le likhohola li ka senya phepelo ea metsi, tsa eketsa ho ata ha lintho tse silafatsang, 'me ho phahama ha metsi a leoatle ho ka lebisa ho keneng ho eketsehileng ha metsi a letsoai. Komello ea nako e telele e fokotsa metsi a teng, 'me linaha tse' maloa tsa Bophirimela, ho kenyeletsoa Arizona, California le Nevada, li beha lithibelo tsa paballo ka lebaka la khaello ea metsi sebakeng sa Colorado River Basin.
Meralo ea motheo ea phepelo ea metsi le eona e hloka lintlafatso tse kholo le matsete. Phuputsong ea eona ea morao-rao ea litlhoko tsa libaka tse hloekileng tsa metsi, Setsi sa Tšireletso ea Tikoloho sa US (EPA) se fumane hore liranta tse limilione tse likete tse 630 li tla hlokahala lilemong tse latelang tsa 20 ho fana ka metsi a lekaneng a hloekileng, ka 55% ea chelete eo e hlokahalang bakeng sa lisebelisoa tsa metsi a litšila. [2] Tse ling tsa litlhokahalo tsena li tsoa ho maemo a macha a tlhoekiso ea metsi, ho kenyeletsoa Molao oa Metsi a Nooang a Bolokehileng le molao o behang maemo a phahameng a lik'hemik'hale tse kang nitrogen le phosphorus. Mokhoa o sebetsang oa ho hloekisa o bohlokoa bakeng sa ho tlosa litšila tsena le ho fana ka mohloli oa metsi o bolokehileng le a hloekileng.
Melao ea PFAS ha e ame feela maemo a phallo ea metsi, empa e boetse e ama theknoloji ea ho sefa ka kotloloho. Hobane metsoako ea fluorinated e tšoarella haholo, e fetohile ntho e tloaelehileng ho li-membrane tse ling, tse kang polytetrafluoroethylene (PTFE). Baetsi ba sefahla sa Membrane ba tlameha ho hlahisa lisebelisoa tse ling tse se nang PTFE kapa lik'hemik'hale tse ling tsa PFAS ho fihlela litlhoko tse ncha tsa taolo.
Ha likhoebo tse ngata le mebuso e ntse e sebelisa mananeo a matla a ESG, ho fokotsa ho ntšoa ha likhase tse futhumatsang lefatše e ba ntho ea bohlokoa ka ho fetisisa. Ho hlahisa motlakase ke mohloli o moholo oa mesi, 'me ho fokotsa tšebeliso ea matla ka kakaretso ke mohato oa bohlokoa ho fihlela lipheo tsa nts'etsopele ea moshoelella.
Setsi sa Tšireletso ea Tikoloho se tlaleha hore metsi a nooang le litsi tsa ho hloekisa metsi a litšila hangata ke tsona tse sebelisang matla a maholo ka ho fetisisa limmasepaleng, li nka karolo ea 30 ho isa ho 40 lekholong ea tšebeliso ea matla kaofela. [3] Lihlopha tsa mehloli ea metsi, tse kang American Water Alliance, li kenyelletsa lits'ebeletso tsa metsi tse ikemiselitseng ho fokotsa ho ntšoa ha likhase tse futhumatsang lefatše lekaleng la metsi ka maano a ho fokotsa phetoho ea maemo a leholimo le taolo e tsitsitseng ea metsi. Bakeng sa baetsi ba membrane filtration, ho sebetsa hantle ha matla ho bohlokoa ha ho sebelisoa theknoloji efe kapa efe e ncha.
Re ka fana ka li-sensor tse fapaneng ho lekola maemo a fapaneng a boleng ba metsi
Sesebelisoa sena sa sensor se entsoe ka thepa ea PTFE (Teflon), e thibelang ho bola 'me e ka sebelisoa metsing a leoatle, aquaculture le metsi a nang le pH e phahameng le ho senya ho matla.
Nako ea poso: Oct-09-2024