Te rerekētanga i waenga i te polyferric sulfate me te ferrous sulfate

Ko ngā rerekētanga matua i waenga i te ferrous sulfate me te polymeric ferric sulfate e whakaatuhia ana i roto i ngā āhuatanga matū, ngā pānga maimoatanga, ngā horopaki tono me te urutau taiao, penei:

I. Ngā āhuatanga matū me te hanganga

1. Te tātai matū me te āhua o te uara o te katote rino

● Ferrous sulfate: ko te tātai matū ko FeSO₄·7H₂O, he takirua te rino (Fe²⁺), nō roto i ngā pūhui kore-waro ngota iti. He āhuatanga whakaiti tōna, ā, ka taea te tauhohe ki te chromium hexavalent me ētahi atu poke mā te tauhohenga REDOX.
● te whanariki polyferricKo te tauira matū ko [Fe₂(OH)ₙ(SO₄)₃-ₙ/₂]ₘ, me te rino kei roto i te āhua trivalent (Fe³⁺), nō roto i ngā pūmua kore-waro. I muri i te waikura, ka hangaia he matatini maha-karihi (pērā i te [Fe₂(OH)₄]²⁺), e tango ana i ngā poke mā te mimiti me te whakapūmau hiko.

2. āhuatanga ā-tinana

● Te whanariki ferrous: he mātotoru te tae o te tioata kakariki mārama, he kōwhai mārama rānei, he ngāwari ki te mimiti, he kakariki mārama te tae o te wairewa; me noho ki roto i ngā āhuatanga paku kawakore (pH 8-10) kia pai ai te hua.
● te whanariki polyferricHe paura/wai parauri kōwhai, parauri whero rānei, he iti te wairewatanga, engari he whānui te awhe pH o te urutau (4-11), he tino pai mō te kounga wai pāmahana iti, te kounga waipara nui.

II. Ngā āpure tono me ngā pānga tukatuka

1. ngā ferrisulfas

● Ngā āhuatanga mahi:
● He āhuatanga whakaiti (pēnei i te whakaiti i te chromium hexavalent ki te chromium trivalent), he āhuatanga whakapūmau me ngā āhuatanga tango tae.
     ● He kaha te pānga tango tae, ā, tata kore tae te wai para o te tae tauhohe i muri i te maimoatanga.
● te tono matua:
● Te whakakōpikopiko hiko i ngā wai para (kua tukatukahia ki ngā konganuku taumaha pērā i te chromium me te parahi).
● Ahuwhenua (tāpiritanga rino), ngā patu harore ahumahi.

2.te whanariki polyferric

● Ngā āhuatanga mahi:
● Ko te tere tango o te COD me te BOD he 80% me te 93% ia mā te mimiti me te hopu kupenga o te matatini maha-karihi.
● He ngoikore ake te pānga tango tae i tērā o te ferrous sulfate (94%-98% vs. tata kore tae), engari he pai ake mō te tango COD.
● te tono matua:
● Te purenga wai, Wai Para Ahumahi (te tae, te hanga pepa, te whakakikorua hiko, me ētahi atu), te whakamaroke i te paru.
● Te pāmahana iti, te pōuri nui rānei Te Maimoatanga Wai.

Te utu me te pānga ki te taiao

● Te whanariki ferrous: he iti te utu, engari he ngāwari te waikura me te kore e pakaru. Mā te whakamahinga nui ka waiho ngā katote rino e toe ana ki roto i te wai, ka pāngia pea e te parahanga tuarua.
● te whanariki polyferricKo te horopeta he 20%-50% noa iho o te konupūmā rino, he iti ake te paru, he māmā ake te maroke, kāore he toenga konumohe me te hauota, he pai ake te tiaki i te taiao.

Ētahi atu rerekētanga

whakarāpopototanga

He pai te ferrous sulfate mō te rongoā i ngā poke whakaiti (pērā i te hexavalent chromium) me ngā āhuatanga utu iti, ko te ferric sulfate polymeric ia he pai ake te whai hua me te pai ki te taiao, he pai hoki mō te purenga wai matatini. Me whakakotahi te kōwhiringa tuturu me te momo poke, ngā whakaritenga maimoatanga me te tahua utu.