E le motheo oa tsoelopele ea tlhahiso ea indasteri le ts'ireletseho ea boipheliso ea batho, tšebeliso e nepahetseng, tlhoekiso, le ts'ebeliso e nepahetseng ea mehloli ea metsi e fetohile tšitiso ea bohlokoa e amang ts'ebetso ea indasteri le ts'ebetso ea ts'ebetso maemong a khaello ea metsi lefatšeng ka bophara le melaoana e thata ea tikoloho. Ho shebana le litlhoko tsa mantlha tsa maemo a indasteri-ho kenyeletsoa ho tsoa hoa metsi a litšila,-ho lokisoa ha metsi a hloekileng haholo, ho ntlafatsa tsamaiso ea metsi a potolohang, le litlhokahalo tsa-liquid discharge (ZLD){4}SNNA e thehile-tsamaiso e felletseng ea{5}}ho felisa{7}tharollo ea ho hloekisoa{6}ho felisa{7} Lilemo tse 20 tsa boiphihlelo ba mosebetsi oa EPC lefapheng la lik'hemik'hale le petrochemical ka-karohano ea mantlha le mekhoa ea ho hloekisa.
Sehlahisoa sa rona sa tlhoekiso ea metsi le litharollo tsa tekheniki li akaretsa letoto lohle la potoloho ea metsi liindasteri: ho hloekisoa ha metsi a tala (coagulation, sedimentation, filtration), tlhoekiso e tsoetseng pele (reverse osmosis, nanofiltration, ultrafiltration),-tlhoekiso e phahameng ea metsi a hloekisitsoeng, tlhoekiso ea metsi a litšila, le ho e sebelisa hape. Ka ho sebelisa mekhoa e 6 ea mantlha e ikemetseng le ho latela melao ea tsamaiso ea boleng ea ISO9001, re sebelisa mekhoa e tsoetseng pele ea karohano, ho sefa ka mokhoa o nepahetseng, ho bolaea likokoana-hloko, le mekhoa ea ho hlabolla methopo e le hore re fihlele ntlafatso ea maemo a fapaneng: ha re ntse re netefatsa hore boleng ba metsi bo lumellana le maemo a indasteri-ka mofuta oa elektroniki ({5}}ka mokhoa o itseng oa elektroniki,{4} metsi a hloekisitsoeng a meriana-), re fokotsa haholo matla a ho sebelisoa ha metsi a hloekileng le ho fokotsa litšenyehelo tsa ho hloekisa ka ho sebelisa metsi hape le ho kenya mehloli e silafatsang.
Ebang re sebetsana le mathata a ho lokisa-letsoai le phahameng,{1}e phahameng{{1}organic, kapa heavy metal-e nang le litšila tsa indasteri tse tsoang likarolong tsa petrochemical, steel, kapa chemical, kapa ho phethahatsa litlhoko tsa ho lokisa metsi a hloekileng tsa liindasteri tsa lisebelisoa tsa elektroniki, tsa meriana le{3}tse phahameng{3}, litharollo tsa rona li fana ka tšehetso e tsitsitseng, e tšepahalang, le tšehetso ea tekheniki. Ka ho kopanya{{5}methopo ea phepelo ea boleng bo holimo le moralo oa sistimi e ikhethileng, ha re thuse likhoebo feela ho fihlela melao e thata ea ho qhala tikoloho le litekanyetso tsa tšebeliso ea mehloli ea metsi empa hape ho theha boleng ba nako e telele-ka ho baballa matla le ho fokotsa mosi. SNNA e ikemiseditse ho ba molekane ya tshepahalang taolong ya mehlodi ya metsi ya diindasteri, ho baballa polokeho ya tlhahiso ya diindaseteri le phepelo ya metsi malapeng, le ho matlafatsa ntshetsopele ya botala le ya moshwelella ya diindaseteri lefatsheng ka bophara.
