Zero discharge industrial wastewater treatment ichinangwa chakakosha mumunda wekuchengetedzwa kwezvakatipoteredza, kuburikidza nehunyanzvi nzira yekuwana kurapa kwakanaka kwemvura yakasviba uye mashandisirwo ezviwanikwa, kuderedza kusvibiswa kwezvakatipoteredza, kuchengetedza zviwanikwa zvemvura kwakakosha. Ini ndichasuma akati wandei makuru maindasitiri emarara ekurapa zero discharge tekinoroji nzira.
Chekutanga pane zvese, tekinoroji yekurapa kwemuviri ndiyo imwe yenzira dzakakosha dzekuwana zero discharge maindasitiri emarara emarara. Pakati pavo, tekinoroji yekuparadzanisa tekinoroji inzira inoshanda uye inochengetedza simba rekurapa kwemuviri. Kuburikidza nekushandiswa kwe membrane zvinhu zvine hukuru hwakasiyana hwepore, zvinhu zvinokuvadza uye heavy metal ions mumvura yetsvina zvinopatsanurwa zvinobudirira kuti zvizadzise chinangwa chekuchenesa mvura. Dual-membrane filtration tekinoroji, kureva maitiro ekubatanidza ultrafiltration membrane uye reverse osmosis membrane, ndeimwe yeakakosha mashandisirwo eiyo membrane yekuparadzanisa tekinoroji. Iyi tekinoroji inogona kuwana kwakadzika kwakadzika kusefa kwemvura yetsvina, kubvisa zvinhu zvinokuvadza, uye nemazvo kudzoreredza mvura yakaraswa kuitira kuti iwane zero kubuda.
Chechipiri, tekinoroji yekurapa tekinoroji zvakare inzira yakakosha yekuwana zero emission maindasitiri emarara emarara. Redox tekinoroji inoshandura zvinosvibisa mumvura yetsvina kuita zvisina muchetura uye zvisingakuvadzi zvinhu kuburikidza nemakemikari kuita, nekudaro kuwana kwakadzika kurapwa kwetsvina. Yepamberi oxidation matekinoroji, akadai seFenton oxidation uye ozone oxidation, inogona kunyatso kubvisa yakaoma-ku-biodegrade organic zvinhu mumvura ine tsvina uye kugadzirisa biochemistry yetsvina. Pamusoro pezvo, kemikari yekunaya kwemakemikari, nzira yekuchinjanisa ion, nezvimwe zvakare inowanzoshandiswa makemikari ekurapa matekinoroji, anogona kubvisa heavy metal ions uye zvinhu zvakamiswa mumvura yakasviba.
Biological treatment tekinoroji chikamu chakakosha che zero discharge maindasitiri emarara emvura. Biological kurapwa tekinoroji inoshandisa metabolism yema microorganisms kuora uye kushandura organic zvinhu mumvura ine tsvina. Yakajairika biological kurapwa matekinoroji anosanganisira activated sludge, biofilm, uye anaerobic digestion. Aya matekinoroji anogona kunyatsobvisa zvinosvibisa organic mumvura yetsvina, kuderedza biochemical oxygen kudiwa (BOD) uye kemikari oxygen kudiwa (COD) yemvura yetsvina, uye kuwana kusingakuvadze kurapwa kwetsvina.
Pamusoro penzira dzakati wandei dzetekinoroji, kune mamwe matekinoroji ari kusimukira zvakare anoita basa rakakosha mumaindasitiri emarara ekuchenesa zero kuburitsa. Semuyenzaniso, evaporation crystallization tekinoroji inowana kupatsanurwa kwakasimba-mvura yetsvina nekuburitsa mvura mumvura yetsvina kuitira kuti munyu unonyungudika mairi upenya uye upere. Iyi tekinoroji inogona kunyatso bvisa munyu uye zvinhu zvinokuvadza kubva mumvura yakasviba uye kuzadzisa chinangwa che zero discharge.
Pamusoro pezvo, tekinoroji yekudzoreredza tekinoroji ndiyo zvakare kiyi yekuwana zero kuburitswa muindasitiri yemarara emarara. Nekuburitsa uye kudzoreredza zvinhu zvinobatsira mumvura yetsvina, kwete chete kuburitsa kwetsvina kunogona kudzikiswa, asiwo kudzokorodza kwezviwanikwa kunogona kuwanikwa. Semuenzaniso, heavy metal ions uye organic matter mumvura yetsvina inogona kudzoserwa uye kushandiswa kuburikidza nehunyanzvi nzira dzekuwana kushandisa zvine hungwaru kwemvura yetsvina.
Muchidimbu, kune nzira dzakasiyana dzehunyanzvi dzekubata mvura yetsvina yemaindasitiri ne zero kuburitsa, kusanganisira tekinoroji yekurapa kwemuviri, makemikari ekurapa tekinoroji, biological kurapwa tekinoroji uye zviwanikwa zvekudzoreredza tekinoroji. Iko kushandiswa kwematekinoroji aya kunofanirwa kusarudzwa uye kugadziridzwa zvinoenderana nemhando yemvura yetsvina uye zvinodiwa pakurapa, kuitira kuti uwane chinangwa chekushanda, kuchengetedza simba uye kushamwaridzana kwemvura yetsvina yekuchenesa ne zero discharge. Nekuenderera mberi nekuenderera mberi uye hunyanzvi hwesainzi uye tekinoroji, zvinotendwa kuti mune ramangwana kuchava nehunyanzvi hwepamusoro nzira dzinoshandiswa mumunda wekugadziriswa kwemvura yetsvina yeindasitiri, kusimudzira chikonzero chekuchengetedzwa kwezvakatipoteredza kusvika padanho repamusoro.
Nguva yekutumira: Kubvumbi-29-2024