Phekolo ea Metsi a Litšila ea Indasteri ea Lik'hemik'hale
Mohopolo oa Phekolo ea Metsi a Metsi a Lik'hemik'hale
Metsi a litšila a indasteri ea lik'hemik'hale a na le mefuta e mengata ea lintho tse silafatsang tse rarahaneng le tse kotsi, ho kenyeletsoa metsoako ea lintho tse phelang, tšepe e boima, lik'hemik'hale tse chefo, le maemo a phahameng a lintho tse tiileng tse emisitsoeng. Ho fapana le chefo ea metsoako ena e thatafatsa kalafo, e hlokang mekhoa e ikhethileng eo hangata e kenyelletsang mekhoa ea 'mele, ea lik'hemik'hale le ea tlhaho.
Litšobotsi tsa Metsi a litšila a indasteri ea lik'hemik'hale
1. Tšilafalo e Phahameng ea Litšilafatso: Metsi a litšila a lik'hemik'hale hangata a na le COD e phahameng (Chemical Oxygen Demand) le BOD (Biological Oxygen Demand) ka lebaka la lik'hemik'hale tse phelang le tse sa tloaelehang.
2. Lintho Tse Chefo le Tse Kotsi: Metsi a litšila a ka ba le lik'hemik'hale tse kotsi tse kang phenols, cyanides, heavy metals, le ammonia, e leng se etsang hore phekolo e be thata.
3. Phapang: Sebopeho sa metsi a litšila a indasteri ea lik'hemik'hale se ka fapana haholo ho latela mofuta oa lik'hemik'hale tse hlahisoang kapa tse sebetsoang.
4. Litšilafatso tse Refractory: Metsoako e mengata ka metsing a litšila ho thata ho e senya, e hloka mekhoa e tsoetseng pele ea ho phekola ho e senya.
Litšobotsi tsa Ts'ebetso ea Phekolo ea Metsi a Ts'ebetso ea Lik'hemik'hale
1. Phekolo ea pele: Sena se kenyelletsa mekhoa e kang coagulation, flocculation, le sedimentation ho tlosa likaroloana tse kholo le ho fokotsa mojaro mehatong e latelang ea phekolo.
2. Oxidation e tsoetseng pele: Mekhoa ea lik'hemik'hale e kang reagent ea Fenton, phekolo ea ozone, kapa UV/H2O2 e sebelisetsoa ho senya lintho tse chefo le tse sa chefo.
3. Phekolo ea Likokoana-hloko: Mekhoa ea phekolo ea Aerobic le anaerobic biological, e kang activated sludge le MBBR (Moving-Bed Biofilm Reactor), e sebelisoa ho senya lintho tse phelang. Leha ho le joalo, mekhoa ena e ka se sebetse hantle bakeng sa litšila tse thibelang likokoana-hloko, 'me ho ka hlokahala liphetoho tse kang bioaugmentation kapa tšebeliso ea likokoana-hloko tse khethehileng.
4. Phekolo ea Thuto e Phahameng: Ho hloekisa, ho khabisoa (mohlala, ho sebelisa carbon activated), le membrane filtration ho ka sebelisoa ho tlosa litšila tse setseng le ho netefatsa hore metsi a finyella litekanyetso tsa ho tsoa.
Litlhoko tse Khethehileng bakeng sa MBBR ha e sebelisoa ka Biological Aeration Tanks bakeng sa Metsi a litšila a Indasteri ea Lik'hemik'hale
1. Ho mamellana le Litšilafatso tse Chefo: Sisteme ea MBBR e tlameha ho etsoa ho sebetsana le maemo a phahameng a lintho tse chefo ntle le ho senya biofilm ho bajari. Mecha ea litaba e ka tšehetsang likokoana-hloko tse khethehileng bakeng sa li-toxicants tse nyenyefatsang lia hlokahala.
2. Nako e Phahameng ea ho Boloka: Metsi a litšila a indasteri ea lik'hemik'hale hangata a hloka nako e telele ea hydraulic le sludge ho boloka nako ka lebaka la ho lieha ha biodegradation ea litšila tsa refractory.
3. Taolo ea Aeration: Tlhokahalo ea oksijene metsing a litšila a lik'hemik'hale e phahame, kahoo tsamaiso ea MBBR e hloka aeration e sebetsang hantle ho boloka maemo a aerobic. Thepa ea moea e tlameha ho ba matla le ho feto-fetoha ho sebetsana le meroalo e feto-fetohang.
4. Tšehetso ea Biofilm: Bajari ba sebelisoang ho MBBR ba tlameha ho ntlafatsoa bakeng sa litšila tse itseng tsa lik'hemik'hale tse ntseng li phekoloa. Maemong a mang, ho ka 'na ha hlokahala hore u sebelise li-biofilms tse nang le likokoana-hloko tse itseng tse khonang ho senya lik'hemik'hale tse thata.
5. Ho tlosoa ka katleho ha COD / BOD: Ka lebaka la likhahla tse phahameng tsa COD / BOD, tsamaiso e lokela ho khona ho fokotsa litekanyetso tsena ka mokhoa o tsitsitseng maemong a amohelehang, esita le ha meroalo e tšosang e etsahala.
Qetello
Ho phekola metsi a litšila a indasteri ea lik'hemik'hale ho hloka mokhoa o hlophisitsoeng ka lebaka la tlhaho e rarahaneng ea litšila. Le hoja MBBR e ka ba khetho e sebetsang ea phekolo ea likokoana-hloko, e tlameha ho etsoa ka ho khetheha ho sebetsana le chefo e phahameng, metsoako e sa senyeheng, le litšobotsi tse feto-fetohang tsa metsi a litšila. Mehopolo e khethehileng joalo ka khetho ea thepa ea ho tsamaisa thepa, nako ea ho e boloka, le litsamaiso tsa moea li bohlokoa bakeng sa kalafo e atlehileng.