Sewage yemuchipatara inoreva tsvina inogadzirwa nezvipatara ine utachiona, heavy metal, disinfectants, organic solvents, acids, alkalis, uye radioactivity.Iine hunhu hwekusvibiswa kwenzvimbo, hutachiona hwakanyanya, uye hutachiona hwakavanda.Pasina kurapwa kunoshanda, inogona kuve nzira yakakosha yekupararira kwezvirwere uye kusvibisa zvakanyanya nharaunda.Naizvozvo, kugadzirwa kwe kuchenesa tsvinachirimwamuzvipatara mava musimboti wekugadzirisa dambudziko iri.
1.Muchipatara kuunganidzwa kwetsvina uye kugadziridzwa
Iyo purojekiti inotora tsvina yemumba uye pombi yemvura inonaya inoyerera, inopindirana nehurongwa hwemadhorobha.Mvura yekurapa uye tsvina yemumba munzvimbo yechipatara inounganidzwa kuburikidza nepombi yemvura yepombi network, yakafanotemerwa nemidziyo yekuchenesa tsvina yakapararira yakavigwa (septic tank, separator mafuta, uye septic tank uye pre disinfection tank yakatsaurirwa kugezesa kwemawadhi anotapukira) nzvimbo yechipatara, ndokuzoregedzerwa kunzvimbo yekuchenesa tsvina munzvimbo yechipatara kunorapwa.Mushure mekusangana nechiyero chekuburitsa cheWater Pollutants Discharge Standard yeMedical Institutions, vanoburitswa mudhorobha rekuchenesa tsvina kuburikidza nemudhorobha pombi network.
Main processing unit tsananguro yekuchenesa tsvinachirimwa
① Iyo gidhi tsime rakashongedzerwa maviri akaturikidzana uye akakwenenzverwa magidhi, aine gap re30 mm pakati pemakomba magidhi uye 10 mm pakati pemagidhi akanaka.Bvisa zvimedu zvihombe zvezvinhu zvakaturikwa uye zvakanyoroveswa zvakanyoroveswa (sezvimedu zvemapepa, mamvemve, kana zvisaririra zvechikafu) kuchengetedza pombi yemvura uye magadzirirwo anotevera.Pakuisa, gireti inofanira kurerekera pakona ye60 ° kumutsara wakatwasuka wenzira yekuyerera kwemvura kuti ifambise kubviswa kwemasara akavharika.Kudzivirira sedimentation yepombi uye kupararira kwezvinhu zvakavharwa, dhizaini inofanirwa kuchengetedza mwero wekuyerera kwetsvina isati yasvika uye mushure mekugezwa pakati pe0.6 m/s uye 1.0 m/s.Zvinhu zvakavharidzirwa negrating zvinofanira kubviswa utachiona panguva yekubviswa nekuda kwekuvapo kwehuwandu hwehutachiona.
② Dziva rekudzora
iye hunhu hwemvura yechipatara inosarudza kusaenzana kwemhando yemvura inouya kubva pachiteshi chekuchenesa tsvina.Naizvozvo, tangi inoraira inogadzikwa kuti iite homogenize hunhu uye huwandu hwetsvina uye kuderedza kukonzeresa kukanganiswa kwemutoro pane anotevera ekurapa zvikamu.Panguva imwecheteyo, gadzira tsaona inodarika pombi kune dziva renjodzi.Midziyo yeAeration inoiswa mutangi rekudzora kudzivirira kunyungudika kwezvikamu zvakamiswa uye kuvandudza biodegradability yetsvina yemvura.
③ Hypoxic aerobic dziva
Anoxic aerobic tank ndiyo musimboti maitiro ekurapwa kwetsvina.Kubatsira kwaro ndekwekuti kunze kwekusvibisa organic pollutants, inewo imwe basa rekubvisa nitrogen uye phosphorus.Nzira yeA / O inobatanidza chikamu chepamberi cheanaerobic uye chikamu chemashure che aerobic mumutsara, neA chikamu DO chisingapfuuri 0.2 mg / L uye O chikamu DO = 2 mg / L-4 mg / L.
Muchikamu cheanoxic, mabhakitiriya eheterotrophic hydrolyze akamiswa zvinosvibisa senge starch, faibha, makabhohaidhiretsi, uye soluble organic matter mutsvina kuita organic acids, zvichiita kuti macromolecular organic matter iparare kuita mamorekuru madiki.Insoluble organic matter inoshandurwa kuita soluble organic matter.Kana izvi zvigadzirwa zveanaerobic hydrolysis zvapinda mu aerobic tank yekurapwa aerobic, biodegradability yetsvina inovandudzwa uye kushanda kweokisijeni kunovandudzwa.
Muchikamu cheanoxic, mabhakitiriya eheterotrophic ammonifies zvinosvibisa zvakadai seprotein nemafuta (N pane organic chain kana amino acid muamino acid) kusunungura ammonia (NH3, NH4 +).Pasi pemamiriro ekupa okisijeni yakakwana, iyo nitrification yeautotrophic bacteria oxidize NH3-N (NH4+) kuNO3 -, uye inodzokera kudziva A kuburikidza nekudzora reflux.Pasi peanoxic mamiriro, iyo denitrification yeheterotrophic bacteria inoderedza NO3 - kune molecular nitrogen (N2) kupedzisa kutenderera kweC, N, uye O mune ecology uye kuona kusingakuvadze masewage kurapwa.
④ tangi yekuuraya utachiona
Iyo sefa effluent inopinda mutangi yekuuraya hutachiona kuchengetedza imwe nguva yekubata pakati pesuweji uye disinfectant, kuve nechokwadi chekuti disinfectant inouraya bhakitiriya mumvura.Tsvina inorasirwa mumapaipi network network.Maererano ne "Water Pollutant Discharge Standards for Medical Institutions", nguva yekubatana kwetsvina kubva kuzvipatara zvechirwere chinotapukira haifaniri kunge iri pasi peawa 1.5, uye nguva yekubata tsvina kubva kuzvipatara zvakakwana haifaniri kunge iri pasi peawa 1.0.
Nguva yekutumira: Kubvumbi-28-2023