Kugwiritsa Ntchito Sodium Sulfide mu Electroplating Wastewater Treatment

Introduction

Makampani opanga ma electroplating ali ndi gawo lofunika kwambiri m'makampani amakono. Zida zambiri m'miyoyo yathu ya tsiku ndi tsiku zimagwiritsidwa ntchito ndi ma electroplating, zomwe sizimangowonjezera kukongola kwawo komanso zimachedwetsa dzimbiri ndi mavuto ena. Makampani opanga ma electroplating ali ndi njira zosiyanasiyana zopangira, zomwe zimapangitsa kuti pakhale mitundu yosiyanasiyana ya madzi otayira. Izi zikuphatikizapo madzi otayira omwe ali ndi acid ndi alkali pre-treatment, madzi otayira omwe ali ndi cyanide ochokera ku cyanide copper plating, madzi otayira omwe ali ndi mkuwa, madzi otayira omwe ali ndi nickel, madzi otayira omwe ali ndi chromium, ndi madzi ena otayira a heavy metal . Pofuna kuchiza madzi otayirawa, sodium sulfide imagwiritsidwa ntchito nthawi zambiri. Nkhaniyi ifufuza momwe sodium sulfide imagwirira ntchito pochiza madzi otayira omwe ali ndi electroplating.

Makhalidwe a Sodium Sulfidi

Sodium sulfide, yomwe imadziwikanso kuti alkali yonunkha, soda yonunkha, alkali yachikasu, alkali yofiira, kapena sulfide alkali, ndi gulu lazinthu zopanda chilengedwe. Ili ndi katundu wamphamvu wa hygroscopic ndipo imasungunuka kwambiri m'madzi. Njira yake yamadzimadzi imakhala yamchere kwambiri ndipo imatha kuyambitsa kuyaka ikakumana ndi khungu ndi tsitsi, motero amatchedwa sulfide alkali.

Ntchito mu Electroplating Wastewater Treatment

Sodium sulfide ndi othandiza pochiza zowononga zitsulo zosiyanasiyana m'madzi otayira a electroplating. Imatha kugwira osati mkuwa wokha m'madzi akuwonongeka a electroplating komanso zoipitsa monga chromium, zinki, lead, nickel, ndi cyanide. Polimbana ndi zovuta zamkuwa zamkuwa, njira yodziwika bwino ndikuwonjezera ferrous sulfate kapena zinthu zina zochepetsera pansi pa acidic kuti athyole zovuta. Kenako, sinthani pH kukhala zamchere ndikuwonjezera sodium sulfide. Njirayi imatha kuchepetsa kuchuluka kwa sodium sulfide yomwe imagwiritsidwa ntchito ndikuletsa mapangidwe ndi kutulutsa mpweya wa hydrogen sulfide pansi pa acidic.

Kuti madzi otayira achitsulo cholemera aulere agwiritsidwe ntchito, sodium sulfide ikhoza kuwonjezeredwa mwachindunji kuti igwiritsidwe ntchito. Komabe, kuti madzi otayira achitsulo cholemera akhale ovuta, pamafunika mankhwala oti aswetse chipangizocho. Sodium sulfide imasungunuka ndikuchitapo kanthu ndi madzi otayira achitsulo cholemera kuti ipange ma sulfide precipitates omwe amasungunuka pang'ono kwambiri. Ma sulfide precipitates amenewa sasungunuka mosavuta ngakhale atakhala ndi asidi. Chifukwa chake, kugwiritsa ntchito sodium sulfide pochiza madzi otayira achitsulo cholemera kumakhala ndi ubwino wotsika mtengo komanso kukhazikika bwino.

Malingaliro Ogwiritsa Ntchito Sodium Sulfidi

Chimodzi mwazinthu zomwe zimakonda kugwiritsa ntchito sodium sulfide ndi mlingo. Ngati mlingowo ndi wotsika kwambiri, zotsatira za kuchotsa mkuwa sizokhutiritsa. Ngati mlingowo ndi wapamwamba kwambiri, ukhoza kuchititsa mdima wamadzi ndikuwonjezera COD pamlingo wina, ndikuipitsa madzi. Pofuna kuthana ndi izi, musanayambe kugwiritsa ntchito sodium sulfide, m'pofunika kusintha pH ya madzi kuti ikhale yozungulira 9. Kuwonjezera apo, kuyesa mayeso a beaker pasadakhale kuti mudziwe mlingo woyenera kungathandize kupewa zotsatira zoipa za mankhwala kapena kuwonjezeka kwa COD m'madzi.

Kutsiliza

Sodium sulfide imakhala ndi zotsatira zabwino zochizira pamadzi otayira zitsulo zolemera kuchokera kumafakitale osiyanasiyana monga matabwa osindikizidwa, kusungunula zitsulo, electroplating, ndi utoto. Komabe, pochigwiritsa ntchito pochiza madzi otayira a electroplating, tiyenera kulabadira mlingo ndi njira yochizira kuti tiwonjeze zabwino zake pothira madzi onyansa ndikuchepetsa zomwe zingachitike. Poyang'anira mosamala zinthu izi, sodium sulfide ikhoza kukhala chida chamtengo wapatali pochiza madzi owonongeka a electroplating, zomwe zimathandiza kuti chilengedwe chitetezeke komanso chitukuko chokhazikika pamakampani a electroplating.