Umehluko phakathi kwe-polyferric sulfate kanye ne-ferrous sulfate

Umehluko omkhulu phakathi kwe-ferrous sulfate ne-polymeric ferric sulfate ubonakala ezimpahleni zamakhemikhali, imiphumela yokwelashwa, izimo zokusetshenziswa kanye nokuzivumelanisa nezimo kwemvelo, kanje:

I. Izakhiwo zamakhemikhali kanye nesakhiwo sawo

1. Ifomula yamakhemikhali kanye nesimo se-valence ye-ion yensimbi

● I-ferrous sulfate: ifomula yamakhemikhali yi-FeSO₄·7H₂O, insimbi iyi-divalent (Fe²⁺), ingeyamakhemikhali angaphansi kwe-molecule inorganic. Inezakhiwo ezinciphisayo futhi ingasabela nge-chromium hexavalent kanye nezinye izinto ezingcolisayo nge-REDOX reaction.
● I-polyferric sulfate: Ifomula yamakhemikhali yi-[Fe₂(OH)ₙ(SO₄)₃-ₙ/₂]ₘ, enensimbi esimweni se-trivalent (Fe³⁺), ingeye-polymers ezingaphili. Ngemva kwe-hydrolysis, yakha ama-complexes amaningi enuclear (njenge-[Fe₂(OH)₄]²⁺), asusa ukungcola ngokumunca kanye nokungafaki i-electro-neutralization.

2. impahla ebonakalayo

● I-ferrous sulfate: okuluhlaza okotshani okukhanyayo noma okuphuzi okukhanyayo okuqinile, okulula ukukuhlambulula, isixazululo siluhlaza okotshani okukhanyayo; sidinga ukuba sezimweni ze-alkaline kancane (pH 8-10) ukuze sifinyelele umphumela omuhle kakhulu.
● I-polyferric sulfate: impuphu/uketshezi oluphuzi onsundu noma obomvu onsundu, ukuncibilika okuphansi, kodwa ububanzi be-pH bokuzivumelanisa nezimo (4-11), kufanelekile ikakhulukazi ekushiseni okuphansi, ikhwalithi ephezulu yamanzi anomswakama.

II. Izinkambu zohlelo lokusebenza kanye nemiphumela yokucubungula

1. i-ferrisulfa

● Izakhiwo ezisebenzayo:
● Inezakhiwo zokunciphisa (njengokunciphisa i-chromium ene-hexavalent ibe yi-chromium ene-trivalent), izakhiwo zokuqina kanye nezakhiwo zokususa umbala.
     ● Umphumela wokususa umbala unamandla, futhi amanzi angcolile edayi ephendulayo angaba cishe angabi nombala ngemva kokwelashwa.
● uhlelo lokusebenza oluyinhloko:
● Amanzi angcolile afakwa ngogesi (aphathwe ngezinsimbi ezisindayo njenge-chromium nethusi).
● Ezolimo (i-iron eyengeziwe), imithi yokubulala isikhunta yezimboni.

2.I-polyferric sulfate

● Izakhiwo ezisebenzayo:
● Izinga lokususwa kwe-COD kanye ne-BOD lalingu-80% kanye no-93% ngokulandelana ngokumuncwa kanye nokubanjwa kwe-net complex ene-nuclear eningi.
● Umphumela wokususa umbala ubuthakathaka kancane kunowe-ferrous sulfate (94%-98% uma kuqhathaniswa nokungabi nombala), kodwa usebenza kahle kakhulu ekususweni kwe-COD.
● uhlelo lokusebenza oluyinhloko:
● Ukuhlanzwa kwamanzi, Amanzi Angcolile Ezimbonini (ukudaya, ukwenza iphepha, ukufaka i-electroplating, njll.), ukususa amanzi odakeni.
● Izinga lokushisa eliphansi noma ukukhukhumala okuphezulu Ukwelashwa Kwamanzi.

Izindleko kanye nomthelela emvelweni

● I-ferrous sulfate: ishibhile, kodwa kulula ukuyixuba bese yehluleka. Ukusetshenziswa ngokweqile kuzoholela kuma-ion ensimbi asele emanzini, okungase kubangele ukungcola kwesibili.
● I-polyferric sulfate: umthamo ungama-20%-50% kuphela we-ferrous sulfate, udaka oluncane futhi kulula ukulukhipha emanzini, akukho zinsalela ze-aluminium ne-chlorine, ukuvikelwa okungcono kwemvelo.

Eminye imehluko

Fingqa

I-ferrous sulfate ifanelekela ukwelashwa kokunciphisa ukungcola (njenge-hexavalent chromium) kanye nezimo ezingabizi kakhulu, kuyilapho i-polymeric ferric sulfate isebenza kahle futhi inobungani nemvelo, ifanelekela ukuhlanzwa kwamanzi okuyinkimbinkimbi. Ukukhetha kwangempela kufanele kuhlanganiswe nohlobo lokungcola, izidingo zokwelashwa kanye nesabelomali sezindleko.