Musiyano uripo pakati pepolyferric sulfate neferrous sulfate

Misiyano mikuru pakati pe ferrous sulfate ne polymeric ferric sulfate inoratidzwa muhunhu hwemakemikari, mhedzisiro yekurapa, mamiriro ekushandiswa uye kuchinjika kwezvakatipoteredza, seizvi:

I. Hunhu hwemakemikari uye chimiro

1. Chemical fomura uye simbi ion valence mamiriro

● Ferrous sulfate: fomura yemakemikari ndeye FeSO₄·7H₂O, simbi iri divalent (Fe²⁺), ndeyemakemikari asina kusimba emakemikari. Ine hunhu hunoderedza uye inogona kuita ne chromium hexavalent nezvimwe zvinosvibisa ne REDOX reaction.
● Polyferric sulfate: Fomura yemakemikari iyi [Fe₂(OH)ₙ(SO₄)₃-ₙ/₂]ₘ, ine iron iri muchimiro chetrivalent (Fe³⁺), ndeyema inorganic polymers. Mushure me hydrolysis, inogadzira multinuclear complexes (yakadai se [Fe₂(OH)₄]²⁺), iyo inobvisa tsvina kuburikidza ne adsorption uye electro-neutralization.

2. pfuma chaiyo

● Ferrous sulfate: girini rakachenuruka kana yero yakachenuruka, crystalline solid iri nyore kusiyanisa, mhinduro yacho iri girini rakachenuruka; inofanira kunge iri mumamiriro ealkaline zvishoma (pH 8-10) kuti iwane mhedzisiro yakanaka.
● Polyferric sulfate: yero yebrown kana tsvuku yebrown upfu/mvura, kunyunguduka kwakaderera, asi pH yakasiyana-siyana (4-11), inonyanya kukodzera mvura ine tembiricha yakaderera uye turbidity yakawanda.

II. Minda yekushandisa uye mhedzisiro yekugadzirisa

1. ferrisulfas

● Hunhu hunoshanda:
● Ine zvinhu zvinoderedza ruvara (sekuderedza hexavalent chromium kuita trivalent chromium), zvinhu zvinoderedza ruvara pamwe nezvinhu zvinoderedza ruvara.
     ● Mhedzisiro yekubvisa ruvara yakasimba, uye mvura yakasviba yedhayi inochinja ruvara inogona kusava neruvara mushure mekurapwa.
● Chishandiso chikuru:
● Mvura yakasviba inoputirwa nemagetsi (yakagadziriswa nesimbi dzinorema dzakadai sechromium nemhangura).
● Kurima (simbi yekuwedzera), mishonga yekuuraya fungi yemumaindasitiri.

2.Polyferric sulfate

● Hunhu hunoshanda:
● Mwero wekubvisa COD neBOD waive 80% uye 93% zvichiteerana nekunyudzwa uye kubatwa kwenzvimbo ine nyukireya dzakawanda.
● Mhedzisiro yekubvisa ruvara haina kusimba zvishoma pane ye ferrous sulfate (94%-98% zvichienzaniswa neisina ruvara), asi inoshanda zvakanyanya pakubvisa COD.
● Chishandiso chikuru:
● Kuchenesa mvura, Mvura Yakasviba Yemaindasitiri (kudhaya, kugadzira mapepa, kuisa mapurasitiki nemagetsi, nezvimwewo), kubvisa mvura kubva mumadhaka.
● Kupisa kwakaderera kana kuti kutonhora kwakanyanya Kurapa Mvura.

Mutengo uye kukanganisa kwezvakatipoteredza

● Ferrous sulfate: inodhura zvishoma, asi iri nyore kuioxidation uye kukundikana. Kushandiswa zvakanyanya kuchaita kuti iron irambe yasara mumvura, izvo zvinogona kukonzera kusvibiswa kwemuviri.
● Polyferric sulfate: chiyero chacho chinongova 20%-50% ye ferrous sulfate, matope mashoma uye zviri nyore kubvisa mvura, hapana aruminiyamu ne chlorine, uye kuchengetedzwa kwezvakatipoteredza kuri nani.

Mimwe misiyano

pfupiso

Ferrous sulfate yakakodzera kurapa kusvibiswa kwemhepo (senge hexavalent chromium) uye mamiriro ezvinhu asingadhuri, nepo polymeric ferric sulfate inoshanda zvakanyanya uye isingakuvadzi nharaunda, yakakodzera kuchenesa mvura kwakaoma. Sarudzo chaiyo inofanira kusanganiswa nerudzi rwekusvibiswa kwemhepo, zvinodiwa pakurapa uye bhajeti yemari.