Usoro Oxidation Electrolytic maka Ịgwọ Sodium Cyanide Wastewater

Okwu Mmalite

Cyanide - nwere mmiri mkpofu, ọkachasị ndị sitere na ya sodium cyanide, bụ isi ihe gbasara gburugburu ebe obibi. Mmiri mkpofu dị otú ahụ na-egbu egbu ma na-esite na ụlọ ọrụ ndị dị ka electroplating, mmepụta gas, coking, metallurgy, nhazi ígwè, eriri kemịkal, plastik, pesticide, na ụlọ ọrụ kemịkalụ. N'ime mmiri, ọ naghị eguzosi ike n'ihe na ọ na-adịkarị mfe ire ere. Ma inorganic na organic cyanides bụ nnọọ nsi bekee. Dịka ọmụmaatụ, ọnụọgụ na-egbu egbu nke cyanide N'ime ahụ mmadụ bụ 0.18 g, na nke potassium cyanide bụ 0.12 g. Na mgbakwunye, mkpokọta cyanide na-egbu egbu na azụ na mmiri sitere na 0.04 - 0.1 mg / L. N'ihi ya, a chọrọ usoro ọgwụgwọ dị irè ngwa ngwa iji belata mmetụta ọjọọ ya na gburugburu ebe obibi na ahụike mmadụ.

Ihe ndabere nke Electrolytic Oxidation maka Cyanide - nke nwere mmiri mkpofu

The Electrolytic oxidation usoro maka ọgwụgwọ Sodium cyanide mmiri mkpofu na-arụ ọrụ n'ụkpụrụ nke iji ọkụ eletrik na-ebugharị mmeghachi omume kemịkalụ na anode na cathode, si otú ahụ na-agbanwe cyanide dị na mmiri mkpofu ka ọ bụrụ ihe na-adịghị emerụ ahụ. N'ime usoro a, ma cyanide dị mfe na cyanide dị mgbagwoju anya na mmiri mkpofu na-enweta electrolysis.

Mmeghachi omume anode

• Maka Mfe Cyanide: N'oge mmeghachi omume nke mbụ na anode, cyanide dị mfe na-emeghachi omume ike na ihe ndị ọzọ dị na mmiri na-ekpofu ihe na-emepụta ihe na-adịghị egbu egbu. N'ọkwa nke abụọ na-esote, mmeghachi omume abụọ na-eme. Otu mmeghachi omume na-agbajikwa ogige a n'ime carbon dioxide, nitrogen, na mmiri. Mmeghachi omume ọzọ na-ebute ọgbọ nke ammonium.

• Maka nhazi Cyanide (na-ewere ọla kọpa - nwere mgbagwoju anya dịka ọmụmaatụ): Mgbe cyanide nchikota, dị ka ọla kọpa - nwere ogige, ruru anode, ọ na-emeghachi omume iji mepụta ion ọla kọpa na ihe ọzọ na-adịghị egbu egbu. Mgbe a na-agbakwunye nnu tebụl na usoro electrolytic, mmeghachi omume ndị ọzọ na-ewere ọnọdụ. A na-eme ka ion chloride sitere na nnu bụrụ oxidized ka ọ bụrụ chlorine na-amalitebeghị. Chlorine a na-eto eto na-eji cyanide na ihe ndị ọzọ dị n'ime mmiri na-ekpofu eme ihe iji mebie ogige cyanide n'ime ngwaahịa ndị na-adịghị emerụ ahụ, gụnyere carbon dioxide, nitrogen, na ion chloride.

Mmeghachi omume Cathode

Na cathode, ion hydrogen na-enweta electrons wee mepụta hydrogen gas. Maka metal - nwere ogige cyanide, dị ka ndị nwere ọla kọpa, ion ọla kọpa na-enweta electrons ma nwee ike idobe ya dị ka ọla kọpa. N'okpuru ọnọdụ ụfọdụ, ion ọla kọpa nwekwara ike iji ion hydroxide meghachi omume iji mepụta ọla kọpa hydroxide precipitate.

Ihe ndị dị mkpa na Usoro Oxidation Electrolytic

• Ngwa Electrode: Nhọrọ nke electrode ihe dị oké mkpa. N'ọtụtụ ọnọdụ, a pụrụ iji ígwè dị nro mee ihe dị ka ihe cathode. Otú ọ dị, anodes kwesịrị iguzogide ọnọdụ electrochemical siri ike. Dimensionally stable anodes (DSA), nke ejiri ọla oxides mara mma mee nke ọtụtụ ụlọ ọrụ mepụtara, dabara nke ọma maka ngwa a. Graphite nwekwara ike ije ozi dị ka ihe anode, ma ọ nwere ihe ndọghachi azụ nke iji nwayọọ nwayọọ rie n'oge usoro electrolysis.

• okpomọkụ Control: Okpomọkụ nke mmiri mmiri mkpofu n'oge electrolysis kwesịrị ka ejiri nlezianya dozie ya. Ekwesịrị idobe ya n'okpuru 25 Celsius. Ọ bụrụ na okpomọkụ na-ebili nke ukwuu, chlorine na-emepụta site na oxidation nke ion chloride na nnu agbakwunyere ga-agbapụ tupu ya enwee ike imeghachi omume na cyanide, si otú ahụ na-ebelata arụmọrụ nke cyanide - usoro mbibi.

• Mgbakwunye ion chloride: Ịtinye ion chloride na mmiri mkpofu nwere ike ịkwalite oxidation electrolytic nke cyanide. Dịka, ịgbakwụnye 1 - 2 g/L nke ion chloride zuru oke. N'ọnọdụ ụfọdụ, ịgbakwụnye nnu nkịtị (sodium chloride) na mkpokọta 25 g kwa liter na mmiri mkpofu egosiwo na ọ ga-enyere aka nke ọma na mbibi electrolytic nke cyanide.

Uru nke Usoro Oxidation Electrolytic

• Ịrụ ọrụ dị elu maka mmiri dị elu - itinye uche na mmiri mmiri: Usoro oxidation electrolytic dị irè karịsịa maka ọgwụgwọ cyanide dị elu - nke nwere mmiri mkpofu, dị ka nke a na-achọta na ọla edo. Ọ nwere ike belata mkpokọta cyanide n'ime mmiri mkpofu.

• N'ime - Ọgbọ nke ụdị anụ ahụ na-emeghachi omume: N'oge electrolysis, ụdị reactive dị ka chlorine nascent na-eme n'ime usoro. Nke a na-ewepụ mkpa maka mgbakwunye mpụga nke ihe ndị nwere ike ịdị ize ndụ na ọnụ ahịa oxidizing n'ọtụtụ buru ibu.

• mgbanwe: Enwere ike ịhazi usoro ahụ dịka ihe mejupụtara nke mmiri mkpofu si dị. Site n'ịchịkwa ihe ndị dị ka njupụta dị ugbu a, voltaji, na mgbakwunye nke ụfọdụ nnu, usoro oxidation electrolytic nwere ike ime ka ọ dịkwuo mma maka ụdị cyanide dị iche iche - nke nwere mmiri na-ekpofu, ma ha nwere ogige cyanide dị mfe ma ọ bụ mgbagwoju anya.

mmechi

Usoro oxidation electrolytic na-enye ngwọta dị mma maka ọgwụgwọ sodium cyanide mmiri mkpofu. Site n'ịghọta mmeghachi omume kemịkalụ na-eme na anode na cathode, jiri nlezianya họrọ ihe electrode, ịchịkwa okpomọkụ, na ịgbakwunye ion chloride kwesịrị ekwesị, usoro a nwere ike wepụ mmetọ cyanide n'ụzọ dị irè na mmiri mkpofu. Ka ụlọ ọrụ na-aga n'ihu na-achọ ụzọ ga-adigide ma dịkwa mma iji jikwaa ihe mkpofu ha, usoro oxidation electrolytic nwere ike nweta ngwa ngwa karịa na ọgwụgwọ cyanide - nwere mmiri mkpofu. Otú ọ dị, a ka na-achọkwu nyocha na mmepe iji meziwanye usoro ahụ, belata ọnụ ahịa, na ịkwalite arụmọrụ ya n'ozuzu ya na enyi na gburugburu ebe obibi.