ʻO ka ʻokoʻa ma waena o ka polyferric sulfate a me ka ferrous sulfate

ʻO nā ʻokoʻa nui ma waena o ka ferrous sulfate a me ka polymeric ferric sulfate e hōʻike ʻia ana i nā waiwai kemika, nā hopena lapaʻau, nā hiʻohiʻona noi a me ka hoʻololi ʻana i ke kaiapuni, penei:

I. Nā waiwai kemika a me ke ʻano

1. Ke ʻano kemika a me ke kūlana valence ion hao

● Ferrous sulfate: ʻo ke ʻano kemika ʻo FeSO₄·7H₂O, he divalent ka hao (Fe²⁺), no nā hui inorganic molekala haʻahaʻa. Loaʻa iā ia nā waiwai hoʻemi a hiki ke hana me ka chromium hexavalent a me nā mea haumia ʻē aʻe ma o ka hopena REDOX.
● ʻO ka sulfate polyferricʻO ke ʻano kemika ʻo [Fe₂(OH)ₙ(SO₄)₃-ₙ/₂]ₘ, me ka hao ma ke kūlana trivalent (Fe³⁺), no nā polymers inorganic ia. Ma hope o ka hydrolysis, hana ia i nā complexes multinuclear (e like me [Fe₂(OH)₄]²⁺), kahi e wehe ai i nā mea haumia ma o ka adsorption a me ka electro-neutralization.

2. waiwai kino

● Ferrous sulfate: ʻōmaʻomaʻo māmā a melemele māmā paha he kristal paʻa, maʻalahi ke hoʻoheheʻe ʻia, ʻōmaʻomaʻo māmā ka hopena; pono ia i nā kūlana alkaline iki (pH 8-10) e hoʻokō ai i ka hopena maikaʻi loa.
● ʻO ka sulfate polyferricʻO ka pauka/wai melemele ʻeleʻele a ʻulaʻula paha, haʻahaʻa ka solubility, akā he ākea ka pH o ka hoʻololi ʻana (4-11), kūpono loa no ka mahana haʻahaʻa, ke kiʻekiʻe o ka turbidity o ka wai.

II. Nā kahua noi a me nā hopena hana

1. ferrisulfas

● Nā waiwai hana:
● Loaʻa iā ia nā waiwai hōʻemi (e like me ka hōʻemi ʻana i ka chromium hexavalent i ka chromium trivalent), nā waiwai coagulation a me nā waiwai decolorization.
     ● He ikaika ka hopena decolorization, a ʻaneʻane hiki ke ʻaneʻane ʻole ke kala o ka wai hoʻoneʻe reactive ma hope o ka mālama ʻana.
● ka hoʻohana nui:
● Ka hoʻopili ʻana i ka wai ʻino (i mālama ʻia me nā metala kaumaha e like me ka chromium a me ke keleawe).
● Mahiʻai (mea hoʻohui hao), nā lāʻau fungicides ʻoihana.

2.ʻO ka sulfate polyferric

● Nā waiwai hana:
● ʻO ka nui o ka wehe ʻana o COD a me BOD he 80% a me 93% pakahi ma o ka adsorption a me ka hopu ʻana o ka multi-nuclear complex.
● ʻOi aku ka nāwaliwali o ka hopena decolorization ma mua o ka ferrous sulfate (94%-98% vs. aneane ʻole ke kala), akā ʻoi aku ka maikaʻi no ka wehe ʻana i ke COD.
● ka hoʻohana nui:
● Hoʻomaʻemaʻe wai, Wai ʻōpala ʻoihana (ka hoʻoluʻu ʻana, ka hana pepa, ka electroplating, a me nā mea ʻē aʻe), ka hoʻohemo ʻana i ka lepo.
● Haʻahaʻa ka mahana a i ʻole ka turbidity kiʻekiʻe Ka Hoʻōla Wai.

Kumukūʻai a me ka hopena o ke kaiapuni

● Ferrous sulfate: haʻahaʻa ke kumukūʻai, akā maʻalahi ka oxidize a hāʻule. ʻO ka hoʻohana nui ʻana e alakaʻi i nā ion hao koena i loko o ka wai, kahi e hoʻoulu ai i ka haumia lua.
● ʻO ka sulfate polyferricʻO ka nui he 20% -50% wale nō o ka ferrous sulfate, emi ka sludge a maʻalahi hoʻi e dehydrate, ʻaʻohe alumini a me ke koena chlorine, ʻoi aku ka maikaʻi o ka palekana o ke kaiapuni.

Nā ʻokoʻa ʻē aʻe

hōʻuluʻulu manaʻo

He kūpono ka Ferrous sulfate no ka mālama ʻana i ka hoʻemi ʻana i nā mea haumia (e like me ka hexavalent chromium) a me nā hiʻohiʻona haʻahaʻa ke kumukūʻai, ʻoiai ʻoi aku ka maikaʻi o ka polymeric ferric sulfate a me ke aloha i ke kaiapuni, kūpono no ka hoʻomaʻemaʻe wai paʻakikī. Pono e hui pū ʻia ke koho maoli me ke ʻano o nā mea haumia, nā koi mālama a me ka waihona kālā.