Umahluko phakathi kwe-polyferric sulfate kunye ne-ferrous sulfate

Umahluko ophambili phakathi kwe-ferrous sulfate kunye ne-polymeric ferric sulfate ubonakala kwiipropati zeekhemikhali, iziphumo zonyango, iimeko zokusetyenziswa kunye nokuzivumelanisa nokusingqongileyo, ngolu hlobo lulandelayo:

I. Iimpawu zeekhemikhali kunye nolwakhiwo lwazo

1. Ifomula yekhemikhali kunye nemeko ye-valence ye-ion yentsimbi

● I-Ferrous sulfate: ifomula yekhemikhali yi-FeSO₄·7H₂O, i-iron yi-divalent (Fe²⁺), yeyeekhompawundi ezingaphantsi kweemolekyuli ezingaphiliyo. Ineempawu ezinciphisayo kwaye inokusabela kwi-chromium hexavalent kunye nezinye izinto ezingcolisayo nge-REDOX reaction.
● I-polyferric sulfate: Ifomula yekhemikhali yi [Fe₂(OH)ₙ(SO₄)₃-ₙ/₂]ₘ, enentsimbi kwimeko ye-trivalent (Fe³⁺), ikwiipolymers ezingaphiliyo. Emva kwe-hydrolysis, yenza ii-complexes ze-multinuclear (ezifana ne [Fe₂(OH)₄]²⁺), ezisusa ungcoliseko ngokufaka i-adsorption kunye ne-electro-neutralization.

2. iipropati ezibonakalayo

● I-Ferrous sulfate: iluhlaza okotshani okanye umthubi okhanyayo, iqinile njengekristale, kulula ukuyinyibilikisa, isisombululo siluhlaza okotshani; kufuneka sibe kwimeko ye-alkaline encinci (pH 8-10) ukuze sifumane isiphumo esingcono.
● I-polyferric sulfate: umgubo/ulwelo olumdaka otyheli okanye obomvu, ukunyibilika okuphantsi, kodwa i-pH ibanzi kwaye ilungele ukusetyenziswa (4-11), ifanelekile ngakumbi kubushushu obuphantsi, umgangatho wamanzi omanzi amdaka.

II. Amasimi esicelo kunye neziphumo zokucubungula

1. iiferrisulfa

● Iimpawu ezisebenzayo:
● Ineempawu zokunciphisa (ezifana nokunciphisa i-chromium ene-hexavalent ibe yi-chromium ene-trivalent), iimpawu zokudibanisa kunye neempawu zokususa umbala.
     ● Isiphumo sokutshintsha umbala sinamandla, kwaye amanzi amdaka edayi ephendulayo anokungabi nambala emva konyango.
● isicelo esiphambili:
● Amanzi amdaka asetyenziswa ngombane (anyangwa ngeentsimbi ezinzima ezifana ne-chromium kunye ne-copper).
● Ezolimo (i-iron eyongezelelweyo), izibulali-zinambuzane zemizi-mveliso.

2.I-polyferric sulfate

● Iimpawu ezisebenzayo:
● Izinga lokususwa kwe-COD kunye ne-BOD lalingama-80% kunye nama-93% ngokulandelanayo ngokufunxwa kunye nokubanjwa kwe-net ye-multi-nuclear complex.
● Isiphumo sokususa umbala sibuthathaka kancinci kunese-ferrous sulfate (94%-98% xa kuthelekiswa ne-phantse ingabi nambala), kodwa sisebenza kakuhle ekususweni kwe-COD.
● isicelo esiphambili:
● Ukucoca amanzi, Amanzi amdaka kwimizi-mveliso (ukudaya, ukwenza iphepha, ukuplata nge-electroplating, njl.njl.), ukususa amanzi kwidaka.
● Ubushushu obuphantsi okanye ukufuma okuphezulu Unyango lwamanzi.

Ixabiso kunye nempembelelo yokusingqongileyo

● I-ferrous sulfate: ixabiso liphantsi, kodwa kulula ukuyinyibilikisa ize ingasebenzi. Ukusetyenziswa kakhulu kuya kukhokelela kwii-ion zentsimbi eziseleyo emanzini, nto leyo enokubangela ungcoliseko lwesibini.
● I-polyferric sulfate: idosi yi-20%-50% kuphela ye-ferrous sulfate, inkunkuma encinci kwaye kulula ukuyicoca, akukho ntsalela ye-aluminium kunye ne-chlorine, ukhuseleko olungcono lokusingqongileyo.

Ezinye izinto ezahlukileyo

Shwankathela

I-ferrous sulfate ifanelekile kunyango lokunciphisa ungcoliseko (njenge-hexavalent chromium) kunye neemeko ezingabizi kakhulu, ngelixa i-polymeric ferric sulfate isebenza kakuhle kwaye inobuhlobo nokusingqongileyo, ifanelekile ekucoceni amanzi okuntsonkothileyo. Ukhetho lokwenyani kufuneka ludibaniswe nohlobo longcoliseko, iimfuno zonyango kunye nohlahlo lwabiwo-mali lweendleko.