Electrolytic Oxidation Maitiro Ekurapa Sodium Cyanide Wastewater

ziviso

Cyanide - ine mvura yakasviba, kunyanya iyo inobva kuSodium Cyanide , idambudziko guru rezvakatipoteredza. Mvura yakasviba yakadaro ine chepfu yakawanda uye inonyanya kubva kumaindasitiri akadai se electroplating, gasi, coking, metallurgy, metal processing, chemical fiber, plastic, pesticide, uye indasitiri yemakemikari. Mumvura, haina kugadzikana uye inokurumidza kuora. Zvese inorganic ne organic cyanides zvinhu zvine chepfu zvakanyanya. Semuenzaniso, dose inouraya yecyanide mumuviri wemunhu i0.18 g, uye yepotassium cyanide i0.12 g. Pamusoro pezvo, huwandu hunouraya hwecyanide kuhove mumvura hunobva pa0.04 - 0.1 mg/L. Nekuda kweizvozvo, nzira dzinoshanda dzekurapa dzinodiwa nekukurumidza kuderedza kukanganisa kwayo nharaunda nehutano hwevanhu.

The Basics of Electrolytic Oxidation for Cyanide - ine Wastewater

Maitiro eElectrolytic oxidation ekurapa mvura yakasviba yeSodium cyanide anoshanda nepfungwa yekushandisa magetsi emagetsi kufambisa maitiro emakemikari paanode necathode, nokudaro achishandura cyanide iri mumvura yakasviba kuita zvinhu zvisingakuvadzi zvakanyanya. Mukuita uku, cyanide iri nyore uye complex cyanide iri mumvura yakasviba zvinoitwa electrolysis.

Anode Reactions

• Kune Simple Cyanide : Munguva yekutanga-danho reaction pa anode, simple cyanide inobata zvine simba nezvimwe zvinhu mumvura yakasviba kuti igadzire compound isina chepfu yakawanda. Mudanho rechipiri rinotevera, pane reaction mbiri dzinoitika. Imwe reaction inoputsa compound iyi kuita Carbon dioxide, nitrogen, nemvura. Imwe reaction inoguma nekugadzirwa kweammonium.

• Kubatanidza Cyanide (Kutora Copper - ine Complex Semuenzaniso) : Kana coordiation cyanide, se coordinate - ine complexes, ikasvika pa anode, inoita coordiation kuti igadzire copper ions uye imwe compound isina chepfu. Kana munyu wetafura ukawedzerwa kune electrolytic medium, mamwe maitiro anoitika. Chloride ions kubva mumunyu inogadziriswa kuti igadzire nascent chlorine. Iyi nascent chlorine inobva yaita coordinate ne cyanide nezvimwe zvinhu mumvura yakasviba kuti iparadze cyanide compounds kuita zvinhu zvisingakuvadzi zvakanyanya, zvinosanganisira carbon dioxide, nitrogen, uye chloride ions.

Cathode Reactions

Pakathodhi, maion ehydrogen anowana maerekitironi uye anoita gasi rehydrogen. Pasimbi - ine cyanide complexes, seaya ane copper, maion emhangura anowana maerekitironi uye anogona kuiswa sesimbi yemhangura. Pasi pemamwe mamiriro ezvinhu, maion emhangura anogonawo kuita ne hydroxide ions kuumba copper hydroxide precipitate.

Mafungiro Akakosha muElectrolytic Oxidation process

• Zvinhu zveElectrode : Kusarudzwa kwezvinhu zveelectrode kwakakosha. Kazhinji, simbi isina kusimba inogona kushandiswa sezvinhu zve cathode. Zvisinei, anode dzinofanira kutsungirira mamiriro ezvinhu akaoma e electrochemical. Anode dzakagadzikana zvine dimensionally (DSA), dzakagadzirwa ne noble metal oxides uye dzinogadzirwa nemakambani akati wandei, dzakakodzera kushandiswa uku. Graphite inogonawo kushanda sezvinhu zve anode, asi ine dambudziko rekushandiswa zvishoma nezvishoma panguva ye electrolysis process.

• Kudzora Kupisa : Tembiricha yemvura inoraswa panguva yekushandiswa kwemagetsi inofanira kudzorwa nokungwarira. Inofanira kuchengetwa pasi pe25 °C. Kana tembiricha ikakwira zvakanyanya, chlorine inogadzirwa kubva mukuoxidation yemaion echloride mumunyu wakawedzerwa inobuda isati yagona kusangana necyanide, nokudaro ichideredza kushanda zvakanaka kwemaitiro ekuparadzwa kwecyanide.

• Kuwedzera Chloride Ion : Kuwedzera chloride ions mumvura yakasviba kunogona kuwedzera electrolytic oxidation yecyanide. Kazhinji, kuwedzera 1 - 2 g/L yechloride ions kwakakwana. Mune zvimwe zviitiko, kuwedzera common salt (sodium chloride) pamwero we25 g pa litre kune marara emvura kwakaratidzwa kuti kunobatsira zvikuru mukuparadzwa kwecyanide ne electrolytic.

Zvakanakira zveElectrolytic Oxidation process

• Kushanda Kwazvo Kwemvura Yakasviba Yakawanda : Maitiro e electrolytic oxidation anonyanya kushanda pakurapa mvura yakasviba ine cyanide yakawanda, senge inowanikwa mumigodhi yegoridhe. Inogona kuderedza zvakanyanya kuwanda kwecyanide mumvura yakasviba.

• Kugadzirwa kweMhando Dzinochinja-chinja : Munguva yekushandiswa kwemagetsi, mhando dzinochinja-chinja senge chlorine inobuda dzinogadzirwa mukati mehurongwa. Izvi zvinobvisa kudiwa kwekuwedzera zvinhu zvinogona kuva nengozi uye zvinodhura zvakanyanya.

• Kuchinjika : Maitiro acho anogona kugadziriswa zvichienderana nechimiro chaicho chemvura yakasviba. Nekudzora maparamita akadai sehuwandu hwemazuva ano, voltage, uye kuwedzerwa kwemamwe munyu, maitiro e electrolytic oxidation anogona kugadziriswa kune marudzi akasiyana e cyanide - ane mvura yakasviba, ingave ine cyanide compounds iri nyore kana yakaoma.

mhedziso

Maitiro e electrolytic oxidation anopa mhinduro yakanaka yekurapa mvura yakasviba ye sodium cyanide . Nekunzwisisa mashandiro emakemikari anoitika pa anode ne cathode, kusarudza zvinhu zve electrode nokungwarira, kudzora tembiricha, uye kuwedzera huwandu hwakakodzera hwe chloride ions, nzira iyi inogona kubvisa kusvibiswa kwe cyanide kubva mumvura yakasviba zvinobudirira. Sezvo maindasitiri achiramba achitsvaga nzira dzinogara kwenguva refu uye dzinoshanda dzekugadzirisa marara avo, maitiro e electrolytic oxidation angangoshandiswa zvakanyanya mukurapa mvura yakasviba ine cyanide. Zvisinei, kutsvagurudza kwakawanda nekuvandudzwa kuchiri kudiwa kuti kugadzirise maitiro acho, kuderedza mari, uye kuwedzera kushanda kwayo kwese uye hushamwari hwezvakatipoteredza.