Selelekela
Lipatlisiso li bontša hore phekolo ea asiti e nang le koporo le arsenic e nang le litšila e sebelisa mokhoa o kenyelletsang pula ea sulfide, e lateloa ke tlatsetso ea gypsum le electrochemical neutralization, e qetellang e lebisa ho tsoa ho tsitsitseng ho finyellang litekanyetso tsa taolo. Boemong ba sulfide precipitation, a sodium sulfide tharollo e nang le motsoako oa boima ba 26% e kenngoa ka ho toba ho asiti ea litšila ea koporo le arsenic tlas'a maemo a itseng a acidity, e leng se etsang hore ho thehoe CuS le As2S3 precipitates ho tlosa li-ion tsa koporo le arsenic ho tloha karolong ea mokelikeli. Tlhahisong ea 'nete, tharollo ea sodium sulfide e na le litekanyetso tse batlang li phahame tsa litšila tse sa qhibiliheng, 'me ha e pepesehile moeeng, butle-butle e oxidize ho theha thiosulfate. Ho feta moo, e na le mocheso o phahameng oa crystallization, har'a litšitiso tse ling. Ka hona, ho fumana moemeli e mocha oa sulfide ho nka sebaka sa sodium sulfide ho tla ba bohlokoa haholo.

Sodium Hydrosulfide e tiileng
Molao-motheo oa Ts'ebetso
E hatelloa ke ts'ebetso ea ho monya e feteletseng ea H2S, kalafo ea asiti ea koporo le arsenic e nang le litšila tse sebelisang Sodium hydrosulfide e etsoa ho ipapisitsoe le lisebelisoa tsa hajoale le phallo ea ts'ebetso ea asiti ea litšila ea sulfuric acid workshop le metsi a litšila. Mokhoa ona o sebelisa tharollo e tsoakiloeng ea sodium hydrosulfide le sodium sulfide bakeng sa kalafo.

Tsamaiso ea Phallo

Setšoantšo sa 1 se bontša mokhoa oa ho phalla ha mokhoa oa ho phekola koporo le arsenic e nang le litšila tse nang le litšila tse sebelisang sodium hydrosulfide. Tharollo ea asiti ea litšila, ka mor'a ho tlosoa ha SO2 tora e hlobolang, e kena ka tanka ea sodium hydrosulfide reaction ho tloha holimo. Tharollo e tsoakiloeng ea sodium hydrosulfide le sodium sulfide e eketsoa ho tloha botebong ba tanka ea karabelo. Tlas'a maemo a acidic, khase ea H2S e hlahisoa 'me butle-butle e phahama, e itšoara ka koporo le arsenic ho tloha holimo ho ea holimo ho theha CuS le As2S3 precipitates. Ka mor'a moo, metsi ana a phalla ka har'a motsoako oa koporo bakeng sa sedimentation. The supernatant e romelloa ts'ebetsong ea phekolo ea gypsum, ha sludge e ka tlaase e tšeloa ka har'a mochine oa ho hloekisa pele o romeloa bakeng sa ts'ebetso e eketsehileng. Palo e nyane ea H2S e sa sebetsanoang e huloa ke phala e mpe ea khatello ho tora ea detoxification, moo e monngoang ke motsoako o potolohang oa sodium hydrosulfide le sodium sulfide, ho netefatsa hore e kopana le litekanyetso tsa ho tsoa.
Mokhoa oa Teko
Mokhoa o tsoelang pele oa tlhahiso o amoheloa, ka mekhoa e meng le litekanyetso tsa taolo li ntse li sa fetohe. Sodium hydrosulfide e sebetsa ka potlako ho feta sodium sulfide; haeba mahloriso a batla a phahame, palo e kholo ea hydrogen sulfide (H2S) e hlahisoa ka potlako tlas'a maemo a acidic. Ntle le ho sebetsana le tse ling tsa koporo le arsenic ka har'a asiti ea litšila, hydrogen sulfide e batlang e le e feteletseng e tla phonyoha bokaholimo ba metsi ka lebaka la ho ferekanngoa ha lesela le sisinyehang 'me e huloe ke khatello e mpe ho tora ea detoxification. Mokhoa o teng o sebelisa sodium sulfide ho monya hydrogen sulfide e feteletseng e hlahisoang nakong ea karabelo ea sulfide (Na2S + H2S = 2NaHS). Kamora tšebeliso ea liteko ea sodium hydrosulfide, tanka ea polokelo ea sodium sulfide e na le sodium hydrosulfide, e fokotsang matla a eona a ho monya hydrogen sulfide e feteletseng. E le ho thibela ho kenngoa ha hydrogen sulfide e sa fellang, e ka lebisang ho sa lumellaneng le mesi e tsoang tora ea detoxification, metsi (condensate a tsoang mouoane o futhumatsang oa tanka ea polokelo ea sodium sulfide) a kenngoa tanka ea polokelo ea sodium sulfide nakong ea teko ho boloka motsoako oa tharollo e tsoakiloeng ea sodium sulfide le sodium hydrosulfide hoo e ka bang 15%.
fihlela qeto e
Kamora ho sebelisa tharollo e tsoakiloeng ea sodium hydrosulfide le sodium sulfide, theko ea reagent bakeng sa ho phekola cubic meter ea asiti ea litšila e theohetse ho 52.5% ea sodium sulfide e hloekileng, e hlahisang melemo e mengata ea moruo.
Tšebeliso ea tharollo e tsoakiloeng ea sodium hydrosulfide le sodium sulfide ha e e-s'o ame matšoao a ho tsoa mosebetsing; litekanyetso tsa ho ntša metsi a litšila li lula li tsitsitse ebile li lumellana.
Ka lebaka la ts'ebeliso e tsoakiloeng ea sodium sulfide le sodium hydrosulfide, 'me ka ts'ebetso ea tora ea detoxification e neng e le teng e sa fetohe, ha ho na maemo a ho se latele mesi e tsoang tora ea detoxification.
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