Nzira yekuchenesa tsvina yakakamurwa kuita matanho matatu:
Kurapa kwekutanga: kurapwa kwemuviri, kuburikidza nemuchina kurapwa, senge grille, sedimentation kana air flotation, kubvisa matombo, jecha nematombo, mafuta, girizi, nezvimwe zviri mutsvina.
Sekondari kurapwa: biochemical treatment, zvinosvibisa mumvura yetsvina zvakasvibiswa uye zvinoshandurwa kuva sludge pasi pekuita kwe microorganisms.
Kurapa kwepamusoro: kurapwa kwepamusoro kwetsvina, iyo inosanganisira kubviswa kwezvinovaka muviri uye disinfection yetsvina neklorini, ultraviolet radiation kana ozone tekinoroji. Zvichienderana nezvinangwa zvekurapa uye kunaka kwemvura, mamwe maitiro ekuchenesa tsvina haasanganisi ese ari pamusoro apa maitiro.
01 Kurapwa kwekutanga
Iyo mechanical (yekutanga-level) yekurapa chikamu inosanganisira zvimiro zvakaita semagrilles, grit chambers, primary sedimentation matangi, nezvimwewo, kubvisa zvidimbu zvakakasharara uye zvakamiswa zvakasimba. Nheyo yekurapa ndeyekuwana kupatsanurwa kwakasimba-mvura kuburikidza nemaitiro emuviri uye kuparadzanisa zvinosvibisa kubva kune tsvina, iyo inowanzoshandiswa nzira yekuchenesa tsvina.
Mechanical (yekutanga) kurapwa ipurojekiti inodiwa kune ese maitirwo etsvina (kunyangwe mamwe maitiro dzimwe nguva achisiya yekutanga sedimentation tank), uye yakajairwa yekubvisa mitengo yeBOD5 neSS mukurapwa kwekutanga kwetsvina yemudhorobha i25% ne50%, zvichiteerana. .
Mubiological phosphorus uye nitrogen kubvisa tsvina yekuchenesa zvirimwa, aerated grit chambers kazhinji haakurudzirwe kudzivirira kubviswa kweiyo organic zvinhu zvinokurumidza kushatiswa; apo hunhu hwemvura hwetsvina yakasvibira husingaenderane nekubvisa phosphorus uye nitrogen, kugadzika kwekutanga sedimentation uye kugadzika Iyo nzira inoda kunyatsoongororwa uye kutariswa zvinoenderana nekutevera maitiro emhando yemhando yemvura, kuitira kuti uve nechokwadi. uye kuvandudza hunyoro hwemvura yemhando yekutevera-up maitiro akadai sekubvisa phosphorus uye denitrification.
02 Kurapwa kwechipiri
Sewage biochemical treatment ndeyekurapwa kwechipiri, nechinangwa chikuru chekubvisa zvisinganyuki zvakamira zvakaomeswa uye zvinonyungudika biodegradable organic matter. Kuumbwa kwayo kwakasiyana-siyana, iyo inogona kukamurwa kuita activated sludge nzira, AB nzira, A / O nzira, A2 / O Method, SBR nzira, oxidation ditch nzira, kudzikamisa dziva nzira, CASS nzira, nyika kurapwa nzira uye dzimwe nzira dzokurapa. Parizvino, zvidyarwa zvizhinji zvekuchenesa tsvina yemudhorobha zvinotora iyo yakagadziriswa sludge nzira.
Nheyo yekurapa kwebiology ndeyekupedzisa kuparara kweiyo organic matter uye synthesis yezvipenyu kuburikidza nekuita kwebiology, kunyanya kuita kwema microorganisms, uye kushandura zvinosvibisa organic kuita zvigadzirwa zvisingakuvadze gasi (CO2), zvigadzirwa zvemvura (mvura) uye organic-yakapfuma zvigadzirwa. . Chigadzirwa chakasimba (microbial boka kana biological sludge); yakawandisa biological sludge inopatsanurwa kubva kune yakasimba uye mvura mutangi re sedimentation uye inobviswa kubva mutsvina yakacheneswa. the
03 Kurapwa kwepamusoro
Kurapa kwepamusoro ndiko kurapwa kwepamusoro kwemvura, inova nzira yekuchenesa mvura yetsvina mushure mekugadziriswa kwechipiri, uye ndiyo chiyero chepamusoro chekuchenesa tsvina. Parizvino, hapana akawanda ekuchenesa tsvina munyika yedu anoiswa mukushandisa kunoshanda.
Inoshora uye inosvibisa mvura mushure mekurapwa kwechipiri, inobvisa zvinosvibisa zvakasara mumvura neyakagadzirwa kabhoni adsorption kana reverse osmosis, uye inobvisa utachiona neozone kana chlorine kuuraya mabhakitiriya nemavhairasi, uyezve inotumira mvura yakagadziriswa muWaterways inoshandiswa se matsime emvura ekugezesa zvimbudzi, kumwaya migwagwa, kudiridza mabhandi akasvibira, mvura yemumaindasitiri, nekudzivirira moto.
Zvinogona kuonekwa kuti basa rekugadzirisa tsvina inongoitwa chete kuburikidza nekushandura biodegradation uye kupatsanurwa kwakasimba-mvura, apo kuchenesa tsvina uye kupfumisa zvinosvibisa mumatope, kusanganisira sludge yekutanga inogadzirwa muchikamu chekutanga chekurapa, Iyo yakasara activated sludge. inogadzirwa muchikamu chechipiri chekurapa uye kemikari sludge inogadzirwa mukurapa kwepamusoro.
Nemhaka yokuti madhaka aya ane huwandu hwakawanda hwezvinhu zvakasikwa uye zvirwere, uye zviri nyore kusvibiswa uye kunhuwa, zviri nyore kukonzera kusvibiswa kwechipiri, uye basa rekubvisa kusvibiswa harisati rapera. Sludge inofanirwa kuraswa nemazvo kuburikidza nekumwe kuderedzwa kwevhoriyamu, kuderedzwa kwevhoriyamu, kudzikamisa uye kurapwa kusingakuvadze. Kubudirira kwekugadziriswa kwemarara uye kuraswa kune zvakakosha pamiti yetsvina uye inofanira kutorwa zvakanyanya.
Kana sludge ikasagadziriswa, sludge inofanira kubudiswa nemvura yakagadziriswa, uye kucheneswa kwemiti yetsvina kuchagadziriswa. Naizvozvo, mune chaiyo yekushandisa maitiro, iyo sludge kurapwa mune sewage nzira yekuchenesa zvakare yakakosha.
04 Deodorization maitiro
Pakati pavo, nzira dzemuviri dzinonyanya kusanganisira dilution nzira, adsorption nzira, nezvimwewo; makemikari nzira dzinosanganisira absorption nzira, combustion nzira, nezvimwewo; kugeza etc.
Hukama pakati pekucheneswa kwemvura nekuongororwa kwemhando yemvura
Kazhinji, midziyo yekuongorora yemhando yemvura ichashandiswa mukugadziriswa kwemvura yetsvina, kuitira kuti tigone kuziva mamiriro chaiwo emhando yemvura uye kuona kana ichisangana neyakajairwa!
Kuongororwa kwehutano hwemvura kunofanirwa mukugadziriswa kwemvura. Nezvemamiriro ezvinhu aripo iye zvino, mvura yakawanda uye yakawanda inoshandiswa muhupenyu uye indasitiri, uye imwe tsvina muhupenyu uye tsvina mukugadzirwa kwemaindasitiri zviri kuwedzerawo. Kana mvura ikaburitswa yakananga isina kubuda, haingosvibise nharaunda chete, asiwo inokuvadza zvakanyanya hurongwa hwemamiriro ekunze. Naizvozvo, panofanirwa kuve nekuziva kwekuyerera kwetsvina uye kuyedzwa. Madhipatimendi akakodzera ataura zviratidzo zvine chekuita nekubuda mukuchenesa mvura. Chete mushure mekuyedzwa uye nekusimbisa kuti zviyero zvinosangana vanogona kuburitswa. Kuonekwa kwetsvina kunosanganisira zviratidzo zvakawanda, zvakadai sepH, suspended solids, turbidity, chemical oxygen demand(COD), biochemical oxygen demand(BOD), total phosphorus, total nitrogen, etc. Chete mushure mekugadziriswa kwemvura zviratidzo izvi zvinogona kuva pasi pekubuda. chiyero chatinogona kuve nechokwadi chekuita kwekugadziriswa kwemvura, kuzadzisa chinangwa chekuchengetedzwa kwezvakatipoteredza.
Nguva yekutumira: Jun-09-2023
