Nzira yekutanga yekubatwa nemarara ndeyekushandiswa kwakasiyana-siyana nzira yekuparadzanisa, bvisa uye kudzokorora zvakasvibiswa zvirimo mumvura ine mvura uye marara, kana kushandura kuita zvinhu zvisina njodzi kuchenesa mvura.
Pane nzira dzakawanda dzekurapa sewage, iyo inogona kuunganidzwa muzvikamu zvina, kureva kubereka bhizimusi, kurapwa kwemuviri, kurapwa kwemakemikari uye kurapwa kwemakemikari.
1. Biological kurapwa
Kuburikidza ne metabolism yehutachiona, organic Pollutanis muchimiro chemhinduro, monjekiti uye mimviro yakanaka mumarara inoshandurwa kuita zvinhu zvakasungwa uye zvisina njodzi. Maererano neHutachiona hwehutachiona hwakasiyana, kurapwa kwebenzi kunogona kukamurwa kuva marudzi maviri: Aerobic biological kurapwa uye neaerobic biological kurapwa.
Iyo Aerobic Biological Biology nzira inoshandiswa zvakanyanya mukurapwa kwezvinhu zvakasarudzika kwemarara. Maererano nemaitiro akasiyana siyana, iyo Aerobic Biological nzira yakakamurwa kuita marudzi maviri: yakagadziriswa sludge nzira uye yebiofilm nzira. Activated sludge maitiro pachayo pachavo inyati yekurapa, ine mhando dzakasiyana dzekushandisa. Midziyo yekurapa yeBiofilm nzira inosanganisira biofilter, biological turntation tank uye biological comicized mubhedha, etc. iyo biological oxidation yePond nzira inonziwo nzira yemusikirwo. AaAerobic Biological kurapwa, anozivikanwawo seBiiologication kuderedzwa kurapwa, inonyanya kushandiswa kurapa yakakwirira-kusimbisa organic marara uye sludge.
2. Kurapa Kwepanyama
Nzira dzekuparadzanisa nekudzora insoluble yakamiswa pellutants Mayuniti ekurapa ari eyekuparadzanisa kwekuparadzanisa nzira anosanganisira sendimentation, mhepo yekufamba-famba), etc.Command centrifugal kupatsanurwa pachayo rudzi rwekurapa unit, zvishandiso zvekugadzirisa zvinoshandiswa zvinosanganisira centrifuge uye hydrocyclone, nezvimwewo.; Iyo screen yekuchengetera nzira ine zvikamu zviviri zvekugadzirisa: Grid screen kuchengetwa uye filtration. Iyo yekutanga inoshandisa Grids uye screens, nepo iyo yekupedzisira ichishandisa jecha mafirita uye mafirita ekurapa zvichibva pane imwe nzira yekushambadzira zvakare iri nzira yekurapa, uye zvikamu zvekurapa zvinosanganisira kubhururuka uye kuchema.
3. Kurapa kwemakemikari
Inzira yekurapa yekurapa inoparadzanisa uye inobvisa yakanyungudutswa uye collidal pllutants mumarara kana kuvashandura kuita zvinhu zvisina njodzi kuburikidza nemakemikari maitiro uye kuendesa misa. Mune nzira yemakemikari yekurapa, iyo nzira yekugadzirisa yakavakirwa pane yemakemikari maitiro ekurasa: coagulation, kusarerekera, redox, etc.; Nepo iyo yekugadzirisa zvikamu zvichienderana nekutumira misa ndeye: kubviswa, kubvuta, kubviswa, kushandurwa kweStrever Pakati pavo, chirongwa chekurapa tichishandisa mashandisiro akawanda ane zviito zvemakemikari uye zviito zvine chekuita nemhando, saka zvinogona zvakare kuparadzaniswa nenzira yemakemikari uye kuve imwe mhando yerudzi rwekurapa, inonzi nzira yemuviri.
mufananidzo
Zvakajairika Sewage Kurapa Maitiro
1. Degrecallater
Iyo inosvibisa zviratidzo senge mafuta akawanda, codcr uye bhodhi5 mukutsamwa kwetsvina mvura yakakwira kwazvo. Nzira dzekurapa dzinosanganisira acid kubviswa, centrifugation kana solvent kubviswa. Iyo acid yekubvisa nzira inoshandiswa zvakanyanya, kuwedzera h2So4 yekugadzirisa iyo pH Kukosha kusvika 3-4 yekudzora uye kumunzwa ne40-60 t ye 2-4 H, iyo mafuta zvishoma nezvishoma inoyerera kuumba grease layer. Iko kupora kwemakara kunogona kusvika 96%, uye kubviswa kwecrocl kunopfuura 92%. Kazhinji, kusvinura kwamafuta mumvura incel yemvura ndeye 8-10g / l, uye kusunganidzwa kwemafuta mumvura kunze kwemvura kuri pasi pe 0.1 g / l. Mafuta akagadziridzwa anogadziriswa uye akashandurwa kuti asasanganiswa mafuta acids iyo inogona kushandiswa kuita sipo.
2. Kurambidza uye bvudzi kubvisa kamwe chete
Kurambidza uye bvudzi kubvisa kamwechete, lime, sodium sulfide, yakamiswa solids, 28% yeiyo yakazara codcr, 92% yehuwandu hweS2-, uye 75% yehuwandu hweSS. Nzira dzekurapa dzinosanganisira acidation, makemikari ekumakemikari uye oxidation.
Iyo nzira yekukudza inowanzoshandiswa mukugadzira. Pasi pemamiriro ekumanikidzwa asina kunaka, wedzera H2So4 kugadzirisa iyo PH Kukosha kuna 4-4.5, gadzira H2S gasi, ubate iyo Naoh solution, uye gadzira Sulfurated Alkali yekushandisa basa rekushandisa zvakare. Prorpurin yemanyorerwo yakagadzirirwa mumvura yakasviba yakasviba, yakashambwa, uye yakaoma. kuva chigadzirwa. Iyo sulfide yekubvisa chiyero inogona kusvika anopfuura 90%, uye codcr uye ss inoderedzwa ne85% uye 95% zvichiteerana. Mutengo waro wakaderera, kushanda kwekugadzira kuri nyore, kuri nyore kudzora, uye kutenderera kwekugadzira kwapfupiswa.
3. Chrome Tanning Warthwater
Iyo huru yakasvibisa yeChrome Tanning Warnwater isiriyo simbi cr3 +, iyo masimbi misa ndeye 3-4g / l, uye iyo ph kukosha haina kusimba acidic. Nzira dzekurwisa dzinosanganisira alkali chaiyo uye yakananga kudzokororwa. 90% yematombo epamba anoshandisa Alkali Spelcipitation nzira, sodium Hydroxide, Magnesium oxtring
Munguva yekuita, iyo PH kukosha ndeye 8.2-8.5, uye kufungidzira kwakanaka kwazvo pa40 ° C. Iyo Alkali pripitant ndeye Magnesium oxide, iyo chromium yekudzoreredza chiyero 99%, uye huwandu hwakawanda hwechromium muEffluent iri pasi pe1 mg / l. Nekudaro, nzira iyi yakakodzera madhiri makuru-akakura, uye kusachena kwemafuta anodzvanywa uye mapuroteni mune yakagadzirwazve chrome dope inokanganisa maitiro ekutenga.
4. Yakatemerwa marara mvura
4.1. Sistimu yekunyepedzera: Inonyanya kusanganisira nzvimbo dzekurapa dzakadai se grille, kudzora tangi, tangi yeTangi uye tangi yekurima kwemhepo. Kusvinura kweiyo organic nyaya uye kwakamiswa solids mumarara mutsvuku wakakwira wakakwira. Iyo nzira yekunyepedzera inoshandiswa kugadzirisa huwandu hwemvura uye mhando yemvura; Bvisa SS uye Midziyo Solids; Deredza chikamu chekusvibisa mutoro uye gadzira zvakanaka mamiriro ekutevera kubereka kwezvinhu zvakanaka.
4.2. Biological Kurapa System: ρ (CODCR) yeTannery Wastwater iri 3000-4000 mg / l, ρ (bod5) Parizvino, oxidation ditch, sbr uye briological connection oxid inonyanya kushandiswa muChina, BBR), mubhedha weSbbr),
Kutumira Nguva: Jan-17-2023
