Chithandizo cha zinyalala zokhala ndi chromium mu electroproproptatu

Kufanizira kwa zotsatira zamankhwala za sulfate sulfate ndi sodium bisuulfite

Njira yopanga magetsi imafunikira kumenyedwa, ndipo pakuyeretsa kwapakati, motero madzi otayika azipanga chromium-totchera chifukwa cha kulemba kwa chromium. Chromium mu zinyalala zonyansa okhala ndi chromium muli ma chromial chromium, omwe ndi poizoni komanso ovuta kuchotsa. Chromium ya Hexavale nthawi zambiri imasinthidwa kukhala chromium yachilengedwe ndikuchotsa. Pochotsa chilengedwe chokhala ndi madzi owoneka bwino, kuphatikiza mankhwala ndi mpweya nthawi zambiri kumagwiritsidwa ntchito pochichotsa. Nthawi zambiri amagwiritsidwa ntchito ndi ma sulfate a sulfate ndi njira yochepetsera mpweya ndi sodium bisuulfite njira yochepetsera mpweya.

1. Ferrous sulfate ndi njira yochepetsera

Ferrous sulfate ndi ma coagrant acidi acid ndi maxiidation ochepetsa mafuta. Ferrous sulfate imatha kuchepetsedwa mwachindunji ndi ma chromial chromium pambuyo pa madzi a hydrolys mu madzi ophatikizika a chromium hydroxide.

Ferrous sulfate kuphatikiza mandimu kuchepetsera kwa chroment christecer kumatha kuchitika bwino pa chromium kuchotsedwa ndi mtengo wotsika. Kachiwiri, palibe chifukwa chosinthira mtengo wa pH musanachoke sulfate yamphamvu, ndipo amangofunika kuwonjezera laimu kuti asinthe mtengo. Komabe, chifukwa cha kuchuluka kwa matenda otupa akhungu amayambitsanso kuchuluka kwa matope azitsulo, kuwonjezera mtengo wa sludge chithandizo chamankhwala.

2 ,.sodium Bisuulfite ndi njira yochepetsera ya alkali

Sodium Bisuulfite ndi Chromiser Cromtured Cromote, a PH of the Stofter asinthidwa kukhala ≤2.0. Kenako sodium bisuulfite imawonjezeredwa kuti muchepetse ku chromium yovuta kwambiri, ndipo mtengo wa zinyalala umasinthidwa kukhala ma stomications, ndipo madziwo amatulutsidwa pafupifupi 95%.

Njira ya sodium bisuulfite ndi chromate wochepetsedwa bwino kwa chromium. Komabe, poyerekeza ndi chithandizo champhamvu cha sulfate, kwenikweni simabalalika kwambiri, ndikuchepetsa mtengo wa thumba la sludge, ndipo ma sledge omwe nthawi zambiri amagwiritsidwa ntchito.