Kugwiritsa Ntchito Sodium Sulfide mu Electroplating Wastewater Treatment

Introduction

Makampani opanga ma electroplating amatenga gawo lalikulu pamakampani amakono. Zida zambiri m'miyoyo yathu yatsiku ndi tsiku zimakhala ndi electroplated, zomwe sizimangowonjezera mawonekedwe awo okongola komanso zimachedwetsa dzimbiri ndi zina. Makampani opanga ma Electroplating amakhala ndi njira zosiyanasiyana zopangira, zomwe zimapangitsa kuti madzi azitaya azitulutsa mitundu yosiyanasiyana. Izi zikuphatikizapo asidi ndi alkali madzi owonongeka asanadye, cyanide-okhala ndi madzi onyansa ochokera ku cyanide copper plating, madzi oipa okhala ndi mkuwa, madzi onyansa okhala ndi faifi tambala, madzi oipa okhala ndi chromium, ndi zina. heavy metal waste waters. Kuchiza awa wastewaters, mankhwala wothandizila sodium sulfide amagwiritsidwa ntchito nthawi zambiri. Nkhaniyi ifotokoza momwe sodium sulfide imagwirira ntchito pochiza electroplating madzi oipa.

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.

Pamadzi opanda zinyalala za heavy metal, sodium sulfide ikhoza kuwonjezeredwa mwachindunji kuti muchiritsidwe. Komabe, pamadzi owonongeka azitsulo zolemera kwambiri, chithandizo chisanachitike kuti chiwononge zovutazo chimafunika. Sodium sulfide imatenthetsa ndikuchitapo kanthu ndi madzi oyipa achitsulo olemera kwambiri kuti apange sulfide amachepetsa ndi kusungunuka kochepa kwambiri. Madzi a sulfidewa sasungunuka mosavuta ngakhale patakhala acidic. Chifukwa chake, kugwiritsa ntchito sodium sulfide pochiza madzi owonongeka azitsulo zolemera kwambiri kumakhala ndi zabwino zotsika mtengo komanso kukhazikika kwabwino.

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.