Ukusetyenziswa kweSodium Sulfide kwi-Electroplating Waste Water Treatment

intshayelelo

Ishishini le-electroplating lidlala indima ebalulekileyo kwishishini lanamhlanje. Izixhobo ezininzi kubomi bethu bemihla ngemihla zi-electroplated, ezingaphuculi nje inkangeleko yazo yobuhle kodwa zilibazisa ngokufanelekileyo ukurusa kunye neminye imiba. Ishishini le-Electroplating libonisa iinkqubo ezahlukeneyo zemveliso, ezikhokelela kwiindidi ezahlukeneyo zokukhutshwa kwamanzi amdaka. Oku kubandakanya iasidi kunye nealkali amanzi amdaka aphambi konyango, i-cyanide-iqulathe amanzi amdaka asuka kwicyanide copper plating, amanzi amdaka anobhedu, amanzi amdaka anenickel, amanzi amdaka anechromium, kunye nezinye. amanzi amdaka esinyithis. Ukunyanga la manzi amdaka, iarhente yemichiza sodium sulfide isetyenziswa rhoqo. Eli nqaku liza kuphonononga ukusebenza kwe-sodium sulfide ekunyangeni electroplating amanzi amdaka.

Iipropati zeSodium Sulfidi

I-sodium sulfide, ekwaziwa njenge-alkali enukayo, isoda enukayo, ialkali etyheli, ialkali ebomvu, okanye ialkali yesulfide, yikhompawundi ye-inorganic. Inepropathi eyomeleleyo yehygroscopic kwaye inyibilika kakhulu emanzini. Isisombululo sayo samanzi sinamandla e-alkaline kwaye sinokubangela ukutshisa xa sidibana nolusu kunye neenwele, ngoko ke igama elithi sulfide alkali.

Ukusetyenziswa kunyango lwamanzi amdaka nge-Electroplating

I-sodium sulfide iyasebenza ekunyangeni izingcolisi ezahlukeneyo zesinyithi kumanzi amdaka e-electroplating. Ayinakuphatha kuphela ubhedu kumanzi amdaka e-electroplating kodwa kunye nezinto ezingcolisayo ezinjengechromium, zinc, lead, nickel, kunye necyanide. Xa ujongene namanzi amdaka obhedu obunzima, indlela eqhelekileyo kukongeza i-ferrous sulfate okanye ezinye izinto zokunciphisa phantsi kweemeko ze-acidic ukuphula i-complex. Emva koko, lungisa i-pH kwi-alkaline kwaye ungeze i-sodium sulfide. Le nkqubo inokunciphisa inani le-sodium sulfide esetyenziswayo kwaye ithintele ukubunjwa kunye nokukhululwa kwegesi ye-hydrogen sulfide phantsi kweemeko ze-acidic.

Ngamanzi amdaka asimahla esinyithi, i-sodium sulfide inokongezwa ngokuthe ngqo kunyango. Nangona kunjalo, kumanzi amdaka esinyithi esinzima esinzima, unyango lwangaphambili lokuqhekeza olunzima luyafuneka. I-sodium sulfide i-hydrolyzes kwaye idibene namanzi amdaka esinyithi anzima ukwenza i-sulfide iyancipha kunye nokunyibilika okuphantsi kakhulu. Le sulfide precipitates ayinyibiliki lula naphantsi kweemeko ezineasidi. Ke ngoko, ukusebenzisa i-sodium sulfide ukunyanga amanzi amdaka esinyithi esinzima kuneenzuzo zexabiso eliphantsi kunye nokuzinza okuhle.

Ukuqwalaselwa kokusetyenziswa kweSodium Sulfidi

Omnye wemiba eqhelekileyo ekusebenziseni i-sodium sulfide yidosi. Ukuba i-dosage iphantsi kakhulu, umphumo wokususa ubhedu awunelisi. Ukuba idosi iphezulu kakhulu, inokuwenza mnyama umzimba wamanzi kwaye inyuse iCOD ukuya kwinqanaba elithile, ingcolise amanzi. Ukujongana nale nto, ngaphambi kokusebenzisa i-sodium sulfide, kuyimfuneko ukulungelelanisa ixabiso le-pH lamanzi malunga ne-9. Ukongezelela, ukuqhuba uvavanyo lwe-beaker kwangaphambili ukumisela i-dosage efanelekileyo kunokunceda ukuphepha imiphumo emibi yonyango okanye ukwanda komxholo we-COD emanzini.

isiphelo

I-sodium sulfide ineziphumo ezilungileyo zonyango kumanzi amdaka esinyithi anzima avela kumashishini ahlukeneyo anje ngeebhodi zesekethe eziprintiweyo, ukunyibilikiswa kwesinyithi, i-electroplating, kunye nokudaya. Nangona kunjalo, xa siyisebenzisa ukunyanga amanzi amdaka e-electroplating, kufuneka sinikele ingqalelo kwidosi kunye nenkqubo yonyango ukukhulisa iingenelo zayo ekuphatheni amanzi amdaka ngelixa sinciphisa iimpembelelo ezinokuthi zibe kho. Ngokulawula ngokucophelela ezi zinto, i-sodium sulfide ingaba sisixhobo esibalulekileyo kunyango olusebenzayo lwamanzi amdaka e-electroplating, igalelo ekukhuselweni kwendalo kunye nophuhliso oluzinzileyo kwishishini le-electroplating.