Tlhahlobo ea ho khoneha ea ts'ebeliso ea ho hloekisa metsi a litšila a indasteri
1. Kenyelletso ea motheo
Tšilafalo ea tšepe e boima e bolela tšilafalo ea tikoloho e bakoang ke lirafshoa tse boima kapa metsoako ea tsona. Haholo-holo e bakoa ke lintlha tsa batho tse kang merafo, ho qhalloa ha khase e litšila, ho nosetsa likhoerekhoere le tšebeliso ea lihlahisoa tse boima ba tšepe. Ka mohlala, lefu la boemo ba leholimo ba metsi le lefu la bohloko Japane li bakoa ke tšilafalo ea mercury le tšilafalo ea cadmium ka ho latellana. Tekanyo ea kotsi e itšetlehile ka mofuta oa mahloriso le lik'hemik'hale tsa litšepe tse boima tikolohong, lijo le lintho tse phelang. Tšilafalo ea tšepe e boima e bonahala haholo-holo tšilafalong ea metsi, ’me karolo e ’ngoe ea eona e sepakapakeng le litšila tse tiileng.
Limetale tse boima li bolela litšepe tse nang le matla a khoheli a itseng (density) e fetang 4 kapa 5, 'me ho na le mefuta e ka bang 45 ea tšepe, joalo ka koporo, loto, zinki, tšepe, taemane, nickel, vanadium, silicon, konopo, titanium, manganese. , cadmium, mercury, tungsten, molybdenum, khauta, Silver, joalo-joalo Le hoja manganese, koporo, zinki le tse ling tse boima. metals ke trace elements e hlokahalang bakeng sa mesebetsi ea bophelo, boholo ba litšepe tse boima tse kang mercury, lead, cadmium, joalo-joalo ha li hlokahale bakeng sa mesebetsi ea bophelo, 'me litšepe tsohle tse boima tse ka holim'a khatello e itseng li chefo' meleng oa motho.
Limetale tse boima ka kakaretso li teng ka tlhaho maemong a tlhaho. Leha ho le joalo, ka lebaka la ts'ebeliso e ntseng e eketseha, ho qhibilihisa, ho sebetsa le ho etsa khoebo ea litšepe tse boima ke batho, litšepe tse ngata tse boima tse kang lead, mercury, cadmium, cobalt joalo-joalo li kena sepakapakeng, metsing le mobung. Baka tšilafalo e tebileng ea tikoloho. Limetale tse boima maemong a fapaneng a lik'hemik'hale kapa libopeho tsa lik'hemik'hale li tla tsoela pele, li bokellane le ho falla kamora ho kena tikolohong kapa tikolohong, ho baka kotsi. Ka mohlala, litšepe tse boima tse ntšitsoeng ka metsi a litšila li ka ipokellela ka har'a algae le seretse se ka tlase esita le haeba mahloriso a le monyenyane, 'me a ba adsorbed holim'a litlhapi le li-shellfish, e leng se etsang hore ho be le mahloriso a lijo, kahoo a baka tšilafalo. Ka mohlala, mafu a metsi a Japane a bakoa ke mercury metsing a litšila a tsoang indastering ea tlhahiso ea soda, e fetoloang ho mercury ea tlhaho ka liketso tsa likokoana-hloko; mohlala o mong ke bohloko, bo bakoang ke cadmium e ntšitsoeng indastering ea ho qhibilihisa zinki le indasteri ea cadmium electroplating. Ho. Loto e tsoang mosing oa koloi e kena tikolohong ka ho ferekanngoa ha sepakapaka le lits'ebetso tse ling, e leng se bakang keketseho e kholo ea mokelikeli o teng hona joale, e leng se bakang ho monya ha loto ho batho ba sejoale-joale ka makhetlo a ka bang 100 ho feta a batho ba khale, 'me ho senya bophelo ba batho. .
Macromolecular heavy metal kalafo ea metsi a polymer, sootho-red liquid polymer, e ka sebelisana ka potlako le li-ion tse fapaneng tsa tšepe tse boima metsing a litšila mocheso oa kamore, joalo ka Hg+, Cd2+, Cu2+, Pb2+, Mn2+, Ni2+, Zn2+, Cr3+, joalo-joalo. ho etsa matsoai a kopantsoeng a ke keng a qhibiliha ka sekhahla sa ho tlosoa ho feta 99%. Mokhoa oa phekolo o bonolo ebile o bonolo, theko e tlaase, phello e tsoteha, palo ea sludge e nyenyane, e tsitsitse, ha e na chefo, 'me ha ho na tšilafalo ea bobeli. E ka sebelisoa haholo kalafong ea metsi a litšila indastering ea lisebelisoa tsa elektroniki, meepo le ho qhibilihisa, indasteri ea ts'ebetso ea tšepe, indasteri ea motlakase ea desulfurization le liindasteri tse ling. Boemo ba pH bo sebetsang: 2-7.
2. Sebaka sa kopo ea sehlahisoa
Joalo ka mokhoa o atlehang haholo oa ho tlosa li-ion tsa tšepe, o na le mefuta e mengata ea lits'ebetso. E ka sebelisoa bakeng sa hoo e batlang e le metsi ohle a litšila a nang le li-ion tsa tšepe tse boima.
3. Sebelisa mokhoa le mokhoa o tloaelehileng oa ho phalla
1. Mokhoa oa ho sebelisa
1. Eketsa le ho hlohlelletsa
① Eketsa sesebelisoa sa ho hloekisa metsi ka tšepe e matla ea polymer ka kotloloho ho metsi a litšila a nang le tšepe e boima, karabelo ea hang-hang, mokhoa o motle ke ho hlohlelletsa nako e 'ngoe le e 'ngoe ea 10min;
② Bakeng sa ho tsepamisoa ha litšepe tse boima ka metsing a litšila, liteko tsa laboratori li tlameha ho sebelisoa ho fumana palo ea tšepe e boima e kentsoeng.
③Bakeng sa kalafo ea metsi a litšila a nang le li-ion tsa tšepe tse boima tse nang le likhakanyo tse fapaneng, palo ea lisebelisoa tse tala e ka laoloang ke ORP ka bo eona.
2. Lisebelisoa tse tloaelehileng le mokhoa oa theknoloji
1. Pretreat metsi 2. E le hore u fumane PH = 2-7, eketsa acid kapa alkali ka PH regulator 3. Laola palo ea lisebelisoa tse tala tse kenyelletsoeng ka redox regulator 4. Flocculant (potassium aluminium sulfate) 5. Nako ea bolulo ea tanka e susumetsang 10min 76, nako ea ho boloka tanka ea agglomeration 10min 7, poleiti e thellang tanka ea sedimentation 8, sludge 9, reservoir 10, filthara 121, taolo ea ho qetela ea pH ea letamo la drainage 12, metsi a tsoang.
4. Tlhahlobo ea melemo ea moruo
Ho nka metsi a litšila a electroplating e le metsi a litšila a tloaelehileng a tšepe e boima e le mohlala, indastering ena feela, lik'hamphani tsa kopo li tla finyella melemo e meholo ea sechaba le moruo. Metsi a litšila a electroplating haholo-holo a tsoa metsing a hlatsoang a likarolo tsa plating le mokelikeli o monyane oa litšila. Mofuta, likahare le mofuta oa litšepe tse boima ka metsing a litšila li fapana haholo ka mefuta e fapaneng ea tlhahiso, haholo e nang le li-ion tsa tšepe tse boima joalo ka koporo, chromium, zinki, cadmium le nickel. . Ho ea ka lipalo-palo tse sa fellang, ho ntšoa ha metsi a litšila selemo le selemo ho tloha indastering ea electroplating feela ho feta lithane tse limilione tse 400.
Phekolo ea lik'hemik'hale ea metsi a litšila a electroplating e nkoa e le mokhoa o sebetsang ka ho fetisisa le o phethahetseng. Leha ho le joalo, ho latela liphello tsa lilemo tse ngata, mokhoa oa lik'hemik'hale o na le mathata a kang ts'ebetso e sa tsitsang, katleho ea moruo le phello e mpe ea tikoloho. Moemeli oa kalafo ea metsi a tšepe ea polymer a rarollotsoe hantle haholo. Bothata bo ka holimo.
4. Tekolo e felletseng ea morero
1. E na le matla a ho fokotsa matla a CrV, pH range of reduce Cr” e pharaletse (2~6), ’me boholo ba eona e na le asiti hanyenyane.
Metsi a litšila a tsoakiloeng a ka felisa tlhoko ea ho eketsa asiti.
2. E na le alkaline e matla, 'me boleng ba pH bo ka eketsoa ka nako e le 'ngoe ha e eketsoa. Ha pH e fihla ho 7.0, Cr (VI), Cr3 +, Cu2 +, Ni2 +, Zn2 +, Fe2 +, joalo-joalo e ka fihla boemong bo tloaelehileng, ke hore, litšepe tse boima li ka fokotsoa ha li ntse li fokotsa theko ea VI. Metsi a hloekisitsoeng a kopana ka botlalo le boemo ba naha ba boemo ba pele ba ho ntša metsi
3. Theko e tlaase. Ha ho bapisoa le sodium sulfide ea setso, litšenyehelo tsa ho sebetsa li fokotsehile ho feta RMB 0.1 ka tone.
4. Lebelo la ho sebetsa le potlakile, mme morero oa ts'ireletso ea tikoloho o sebetsa hantle haholo. Pula e bonolo ho rarolla, e leng lebelo le habeli ho feta mokhoa oa lime. Pula ka nako e le 'ngoe ea F-, P043 metsing a litšila
5. Palo ea seretse e nyenyane, ke halofo feela ea mokhoa oa setso oa ho na le lik'hemik'hale
6. Ha ho na tšilafalo ea bobeli ea tšepe e boima ka mor'a phekolo, 'me carbonate ea motheo ea koporo e bonolo ho hydrolyze;
7. Ntle le ho koala lesela la filthara, le ka sebetsoa ka ho tsoelang pele
Mohloli oa sengoloa sena: Sina Aiwen o arolelane tlhahisoleseling
Nako ea poso: Nov-29-2021