Mekhoa le Litlhokomelo tsa ho Hloekisa Metsi a Sodium Sulfide

Metsi a litšila a sodium sulfide, a hlahisoang ho tsoa lits'ebetsong tse fapaneng tsa indasteri joalo ka tlhahiso ea lik'hemik'hale, merafo le tlhahiso ea makhasi, a beha likotsi tse kholo tsa tikoloho le bophelo bo botle ka lebaka la chefo e ngata le ho senya. Ho phekola metsi ana a litšila ka nepo ho bohlokoa ho fokotsa litlamorao tse mpe tsa ona. Poso ena ea blog e tla hlahisa ka botlalo mekhoa ea kalafo le litemoso tsa bohlokoa bakeng sa metsi a litšila a sodium sulfide.

1. Mekhoa ea Kalafo

1.1 Pula ea Lik'hemik'hale

Pula ea lik'hemik'hale ke o mong oa mekhoa e sebelisoang haholo ho phekola metsi a litšila a sodium sulfide. Ts'ebetsong ena, letsoai la tšepe le kang tšepe ea tšepe (ferrous sulfate, ferric chloride) kapa letsoai la koporo le kenngoa metsing a litšila. Li-ion tsa sulfide tse ka har'a sodium sulfide li sebetsana le li-ion tsa tšepe, e leng se etsang hore ho thehoe li-insoluble metal sulfide precipitates. Ka mor'a karabelo ea pula, karohano e tiileng-ea metsi e etsoa ka sedimentation kapa filtration, ka katleho ho tlosa sulfide metsing a litšila. Mokhoa ona o batla o le bonolo, o theko e boima, 'me o loketse ho hloekisa metsi a litšila ka sulfide e phahameng.

1.2 Kalafo ea Oxidation

Kalafo ea oxidation e ka fetola sulfide ka metsing a litšila a sodium sulfide hore e be lintho tse seng kotsi haholo. Mekhoa e tloaelehileng ea oxidation e kenyelletsa moea oxidation, chlorine oxidation, le advanced oxidation process (AOPs).

• Moea Oxidation: Boteng ba lintho tse etsang hore ho be le lintho tse kang manganese dioxide, moea o kenngoa metsing a litšila. Tlas'a maemo a aerobic, sulfide e oxidized ho elemental sulfur kapa sulfate. Mokhoa ona o sebetsa hantle empa o hloka nako e telele ea ho arabela, 'me o loketse ho hloekisa metsi a litšila a nang le sulfide e fokolang haholo.

• Khatello ea chlorine: Chlorine - e nang le oxidants joalo ka sodium hypochlorite kapa chlorine gas e sebelisoa ho oxidize sulfide. Chlorine oxidation e potlakile ebile e sebetsa hantle, empa e ka hlahisa kotsi ka lihlahisoa, kahoo ho hlokahala taolo e hlokolosi ea litekanyetso.

• Mekhoa e Tsoetseng Pele ea Oxidation (AOPs): Li-AOP, tse kang Fenton oxidation le ozone oxidation, li hlahisa li-radicals tse sebetsang haholo tsa hydroxyl. Li-radicals tsena li ka oxidize sulfide ka potlako 'me tsa e etsa minerale ka botlalo. Mohlala, oxidation ea Fenton e sebelisa hydrogen peroxide le li-ion tsa ferrous ho hlahisa li-radicals tsa hydroxyl, tse ka phekolang metsi a litšila a tlase le a phahameng a sulfide.

1.3 Phekolo ea Likokoana-hloko

Phekolo ea likokoana-hloko e sebelisa likokoana-hloko ho senya sulfide metsing a litšila. Phekolo ea bioloji ea anaerobic, joalo ka tšilo ea lijo ea anaerobic, e ka fetolela sulfide hore e be khase ea hydrogen sulfide tlas'a maemo a anaerobic, e ka tlosoang ka lisebelisoa tsa pokello ea khase. Phekolo ea bioloji ea aerobic e kenyelletsa likokoana-hloko tsa aerobic tse oxidize sulfide ho sulfate e le karolo ea tšebetso ea tsona ea metabolism. Phekolo ea likokoana-hloko e na le botsoalle ba tikoloho ebile e tšoarella, empa e hloka maemo a tsitsitseng a ts'ebetso le nako e batlang e le telele ea phekolo.

2. Litšireletso

2.1 Litlhokomelo tsa polokeho

• Metsi a litšila a sodium sulfide a chefo haholo 'me a ka ntša khase e chefo ea hydrogen sulfide ha a kopana le asiti kapa tlas'a maemo a itseng. Ka hona, nakong ea phekolo, basebetsi ba tlameha ho apara lisebelisoa tse loketseng tsa ho itšireletsa, ho akarelletsa le limaske tsa khase, liatlana, le liaparo tse sireletsang, ho thibela ho hema le ho ama letlalo ka lintho tse chefo.

• Mehaho ea phekolo e lokela ho ba le moea o motle - ho etsa bonnete ba ho tsoa ka nako ea khase ea hydrogen sulfide, ho fokotsa kotsi ea ho bokella le ho phatloha ha khase. Ho lemoha khase khafetsa sebakeng sa kalafo ho bohlokoa ho beha leihlo khatello ea hydrogen sulfide le likhase tse ling tse kotsi.

2.2 Litlhokomelo tsa Ts'ebetso

• Reagent Dosage Control: Ka hare pula ea lik'hemik'hale 'me phekolo ea oxidation, taolo e nepahetseng ea litekanyetso tsa li-reagents ke ea bohlokoa. Tekanyetso e sa lekaneng ea reagent e ka lebisa kalafong e sa fellang, athe litekanyetso tse feteletseng ha li phahamise litšenyehelo tsa kalafo feela empa hape li ka baka tšilafalo ea bobeli. Ka mohlala, ho na ha lik'hemik'hale, letsoai le feteletseng la tšepe le ka 'na la etsa hore ho be le li-ion tse setseng tsa tšepe metsing a hloekisitsoeng.

• Taolo ea pH: Theko ea pH ea metsi a litšila e ama haholo ts'ebetso ea kalafo. Ha pula e na ka lik'hemik'hale, sulfide ea tšepe e fapaneng e thekesela hantle ka har'a mefuta e itseng ea pH. Ka kalafo ea oxidation, sekhahla sa karabelo ea oxidation le sebopeho sa sehlahisoa le tsona li amana haufi-ufi le boleng ba pH. Ka hona, tlhahlobo e tsoelang pele le tokiso ea boleng ba pH nakong ea ts'ebetso ea kalafo ea hlokahala.

• Thepa ea Maintenance: Tlhokomelo ea kamehla ea lisebelisoa tsa kalafo, joalo ka lipompo, li-mixer le litanka tsa sedimentation, ke tsa bohlokoa ho netefatsa ts'ebetso e tloaelehileng ea ts'ebetso ea kalafo. Corrosion - lisebelisoa tse hanyetsanang li lokela ho sebelisoa bakeng sa lisebelisoa tse amanang le metsi a litšila a sodium sulfide ho lelefatsa bophelo ba ts'ebeletso ea lisebelisoa.

2.3 Litlhokomelo tsa Tšireletso ea Tikoloho

• Seretse se hlahisoang nakong ea ts'ebetso ea kalafo, haholo-holo ka har'a pula ea lik'hemik'hale, e na le metsi a mangata a tšepe ea sulfide 'me e kanna ea ba le li-reagents tse setseng. Matlakala ana a tlameha ho lahlwa ka nepo ho thibela tshilafalo ya bobedi. E ka romelloa litsing tsa profeshenale tsa kalafo ea litšila tse kotsi bakeng sa ho lahloa ka mokhoa o sireletsehileng.

• Ka mor'a ho phekoloa, boleng ba metsi a litšila bo lokela ho behoa leihlo ka thata ho netefatsa hore a finyella litekanyetso tse loketseng tsa naha le tsa tikoloho ea tikoloho. Haeba boleng ba metsi a litšila bo sa fihlelle litlhoko, ho hlokahala phekolo e eketsehileng kapa tokiso ea tšebetso.

Qetellong, ho phekola metsi a litšila a sodium sulfide ho hloka kutloisiso e felletseng ea mekhoa e fapaneng ea kalafo le ho latela ka tieo litemoso. Ka ho khetha mokhoa o nepahetseng oa phekolo le ho latela mekhoa e nepahetseng ea ts'ebetso, re ka fokotsa ka katleho phello ea tikoloho ea metsi a litšila a sodium sulfide le ho kenya letsoho ho sireletsa tikoloho e tsitsitseng.