Phapang pakeng tsa polyferric sulfate le ferrous sulfate

Phapang e kholo lipakeng tsa ferrous sulfate le polymeric ferric sulfate e bonts'oa ka thepa ea lik'hemik'hale, litlamorao tsa kalafo, maemo a ts'ebeliso le ho ikamahanya le maemo tikolohong ka tsela e latelang:

I. Lintho tsa lik'hemik'hale le sebopeho

1. Foromo ea lik'hemik'hale le boemo ba valence ea tšepe

● Ferrous sulfate: motsoako oa lik'hemik'hale ke FeSO₄·7H₂O, iron is divalent (Fe²⁺), ke ea metsoako e tlaase ea limolek'hule. E na le thepa e fokotsang 'me e ka sebetsana le chromium hexavalent le litšila tse ling ka REDOX reaction.
● Polyferric sulfate: Foromo ea lik'hemik'hale ke [Fe₂(OH)ₙ(SO₄)₃-ₙ/₂]ₘ, e nang le tšepe ka har'a trivalent state (Fe³⁺), ke ea li-polymers tsa inorganic. Ka mor'a hydrolysis, e etsa li-multinuclear complexes (joaloka [Fe₂(OH)₄]²⁺), tse tlosang litšila ka ho ikemela le ho se nke lehlakore ha motlakase.

2.thepa ea nama

● Ferrous sulfate: botala bo khanyang kapa bo mosehla bo bobebe bo tiileng ba kristale, bo bonolo ho botsoa, ​​​​tharollo e botala bo khanyang; e hloka ho ba maemong a alkaline hanyenyane (pH 8-10) ho fihlela phello e ntle ka ho fetisisa.
● Polyferric sulfate: phofo e sootho e mosehla kapa e bofubelu bo bofubelu bo bofubelu / mokelikeli, ho qhibiliha ho tlaase, empa pH mefuta e mengata ea ho ikamahanya le maemo (4-11), haholo-holo e loketseng mocheso o tlaase, boleng bo phahameng ba metsi a turbidity.

II. Libaka tsa kopo le litlamorao tsa ts'ebetso

1.ferrisulfas

● Lintho tse sebetsang:
● E na le likarolo tse peli tsa ho fokotsa (joalo ka ho fokotsa chromium e hexavalent ho trivalent chromium), thepa ea ho kopanya le likarolo tsa decolorization.
     ● Ho senya 'mala ho matla, 'me metsi a litšila a dae e sebetsang a ka batla a se na 'mala ka mor'a hore a hloekisoe.
● ts'ebeliso ea mantlha:
● Metsi a litšila a sebelisang motlakase (a tšetsoeng ka tšepe e boima e kang chromium le koporo).
● Temo (tšepe ea tlatsetso), li-fungicides tsa indasteri.

2.Polyferric sulfate

● Lintho tse sebetsang:
● Sekhahla sa ho tlosoa ha COD le BOD e ne e le 80% le 93% ka ho latellana ka adsorption le ho hapa letlooa la multi-nuclear complex.
● The decolorization effect e fokola hanyenyane ho feta ea ferrous sulfate (94% -98% vs. hoo e batlang e se na 'mala), empa e sebetsa hantle haholo bakeng sa ho tlosa COD.
● ts'ebeliso ea mantlha:
● Ho hloekisa metsi, Metsi a litšila a indasteri (ho daea, ho etsa pampiri, electroplating, joalo-joalo), ho ntša metsi a litšila.
● Mocheso o tlaase kapa moferefere o phahameng Phekolo ea Metsi.

Litšenyehelo le phello ea tikoloho

● Ferrous sulfate: theko e tlaase, empa e bonolo ho oxidize le ho hlōleha. Tšebeliso e feteletseng e tla lebisa ho li-ion tse setseng metsing, tse ka bakang tšilafalo ea bobeli.
● Polyferric sulfate: tekanyo ke 20% -50% feela ea ferrous sulfate, sludge e fokolang ebile e bonolo ho e ntša metsi, ha ho na masala a aluminium le chlorine, tšireletso e ntle ea tikoloho.

Liphapang tse ling

akaretsa

Ferrous sulfate e loketse bakeng sa phekolo ea ho fokotsa litšila (tse kang hexavalent chromium) le maemo a theko e tlaase, ha polymeric ferric sulfate e sebetsa hantle le ho boloka tikoloho, e loketse ho hloekisa metsi a rarahaneng. Khetho ea sebele e lokela ho kopanngoa le mofuta oa litšila, litlhoko tsa phekolo le tekanyetso ea litšenyehelo.