31.Ndezvipi zvakaturikwa zvakasimba?
Yakaturikwa yakaoma SS inonziwo isiri-sefa zvinhu. Iyo yekuyera nzira ndeyekusefa sampu yemvura ine 0.45μm sefa membrane uye wobva wabuda nekuomesa zvakasaririra pa103oC ~ 105oC. Volatile suspended solids VSS inoreva kuwanda kwezvakarembera zvinoshanduka zvinoshanduka mushure mekupisa patembiricha yepamusoro ye600oC, izvo zvinogona kumiririra zviri mukati mezvinhu zvakamiswa muzvinhu zvakamiswa. Izvo zvakasara mushure mekupisa hazvisi-volatile suspended solids, izvo zvinogona kumiririra zviri mukati meinorganic matter mune zvakaturikwa zvimedu.
Mumvura yetsvina kana mvura ine tsvina, zvirimo uye zvimiro zvezvakarembesa zvisinganyunguriki zvinosiyana nehunhu hwezvinosvibisa uye chiyero chekusvibiswa. Masimbi akaturikwa uye akasimba akarembera akasimba zviratidzo zvakakosha zvekugadzirisa mvura yetsvina dhizaini uye manejimendi ekushanda.
32. Sei zvakaturikwa zvikukutu uye volatile yakaturikwa yakaoma parameters anokosha parameters mutsvina kurapwa dhizaini uye oparesheni utariri?
Masimbi akaturikwa uye akasimba akarembera akamira mumvura yetsvina zvinhu zvakakosha mukugadzirisa kugadzirwa kwemvura yetsvina uye manejimendi ekushanda.
Panyaya yezvakambomiswa zvemukati memvura inoyerera yesecondary sedimentation tank, chiyero chenyika chekutanga chepasi chinoti hachifanire kudarika 70 mg/L (mafemu ekuchenesa tsvina emudhorobha haafaniri kudarika 20 mg/L), inova imwe zvinonyanya kukosha zvekudzora kunaka kwemvura zviratidzo. Panguva imwecheteyo, zvimisikidzwa zvakasimba chiratidzo chekuti nzira yakajairika yekuchenesa tsvina iri kushanda zvakajairika. Shanduko dzisina kujairika muhuwandu hwezvakarembera zvakamira mumvura kubva kune yechipiri sedimentation tank kana kudarika mwero zvinoratidza kuti pane dambudziko nehurongwa hwekuchenesa tsvina, uye matanho akakodzera anofanirwa kutorwa kuti aidzorere kune yakajairika.
Izvo zvakamiswa zvakaonda (MLSS) uye volatile suspended solids content (MLVSS) musludge yakabatidzwa mubiological treatment mudziyo unofanirwa kunge uri mukati mehumwe huwandu hwehuwandu, uye kune masewage biological treatment masisitimu ane mvura yakagadzikana yakagadzikana, pane humwe hukama pakati pemvura. piri. Kana MLSS kana MLVSS ichidarika mwero wakatarwa kana chiyero pakati peshanduko mbiri idzi zvakanyanya, kuedza kunofanirwa kuitwa kuidzosera kune yakajairika. Zvikasadaro, kunaka kwetsvina kubva kubhayoloji yekurapa system inozochinja, uye kunyangwe zviratidzo zvakasiyana-siyana zvekuburitsa, kusanganisira zvakamiswa zvakasimba, zvichapfuura zviyero. Pamusoro pezvo, nekuyera MLSS, iyo sludge vhoriyamu indekisi yemusanganiswa weaeration tank inogona zvakare kutariswa kuti inzwisise kugadzirisa hunhu uye chiitiko cheyakagadzirwa sludge uye kumwe kumiswa kwebiological.
33. Ndedzipi nzira dzekuyera dzakaturikwa dzakasimba?
GB11901-1989 inotsanangura nzira yekugadzika kwegiravimetric yezvakarembedzwa zvakasimbiswa mumvura. Pakuyeresa zvakaturikwa zvakasimba SS, imwe vhoriyamu yemvura yetsvina kana yakasanganiswa mvura inounganidzwa, inosefa ne 0.45 μm sefa membrane kuti ibate iyo yakaturikwa yakaoma, uye sefa membrane inoshandiswa kuvharira yakamiswa yakaoma pamberi uye shure. Musiyano wehuwandu huwandu hwezvakarembera zvimedu. Iyo yakajairwa unit yeSS ye general wastewater uye yechipiri sedimentation tank effluent img/L, ukuwo yakajairika unit yeSS yeaeration tank yakasanganiswa mvura uye sludge yekudzoka ig/L.
Pakuyera sampuli dzemvura nehukuru hweSS dzakakura senge aeration yakasanganiswa doro uye kudzorera sludge mumasipiresi ekuchenesa mvura, uye kana iko kurongeka kwemhedzisiro yekuyera kwakadzikira, chiyero chesefa pepa chinogona kushandiswa pachinzvimbo che 0.45 μm sefa membrane. Izvi hazvigone chete kuratidza mamiriro chaiwo ekutungamira kugadziridzwa kwekushanda kwekugadzirwa chaiko, asiwo chengetedza mari yekuyedza. Nekudaro, pakuyera SS musecondary sedimentation tank effluent kana yakadzika kurapwa kwemvura, 0.45 μm sefa membrane inofanirwa kushandiswa kuyerwa, zvikasadaro kukanganisa muchiyero chemhedzisiro ichave yakakura kwazvo.
Muchigadziriso chekuchenesa mvura yetsvina, yakaturikwa solids concentration ndeimwe yemaitiro maparameter anoda kugara achionekwa, senge inlet suspended solids concentration, yakasanganiswa liquid sludge concentration in aeration, return sludge concentration, yasara sludge concentration, etc. Kuti ukurumidze sarudza kukosha kweSS, sludge concentration metres inowanzoshandiswa mumarara ekurapa zvidyarwa, kusanganisira optical type uye ultrasonic type. Nheyo yekutanga ye optical sludge concentration metre ndeye kushandisa mwenje wemwenje kuti uparadzirwe kana ichisangana neakaturikwa zvimedu kana ichipfuura nemumvura, uye kusimba kunopera simba. Kupararira kwechiedza kune imwe nhanho yenhamba nehukuru hwezvimedu zvakamiswa zvakasangana nazvo. Chiedza chakapararira chinoonekwa nesero rephotosensitive. uye dhigirii rekudzivirira kwechiedza, iyo sludge concentration mumvura inogona kufungidzirwa. Nheyo ye ultrasonic sludge concentration mita ndeyekuti kana masaisai e ultrasonic achipfuura nemumvura yakasviba, iyo attenuation ye ultrasonic intensity inoenderana nekusangana kwezvimedu zvakamiswa mumvura. Nekuona kuderedzwa kwemafungu e ultrasonic ane sensor yakakosha, iyo sludge concentration mumvura inogona kuverengerwa.
34. Ndedzipi dziviriro dzekutemerwa kwezvakarembera zvimedu?
Pakuyera uye kuenzanisira, sampu yemvura yakasviba yetangi rechipiri rekunyungudutsa kana sampuro yakabatiswa yemarara mumudziyo wekurapwa webhayoloji inofanira kumiririra, uye zvimedu zvihombe zvezvinhu zvinoyangarara kana zvinhu zvinogwamba zvakanyudzwa mairi zvinofanira kubviswa. Kuti udzivise kusara kwakanyanyisa pane dhisiki resefa kubva pakupinda mvura uye kuwedzera nguva yekuomeswa, sampling vhoriyamu inonyanya kuburitsa 2.5 kusvika 200 mg yezvakarembera zvakasimbiswa. Kana pasina humwe hwaro, iyo sampuli vhoriyamu yekumisikidzwa yakamiswa inogona kuiswa se 100ml, uye inofanira kunyatsosanganiswa.
Pakuyera sampuli dzakaitwa sludge, nekuda kweiyo yakakura yakamiswa zvakaomeswa zvirimo, huwandu hwezvakarembera zvakaomeswa mumuenzaniso zvinowanzopfuura 200 mg. Muchiitiko ichi, nguva yekuomeswa inofanira kuwedzerwa zvakakodzera, uye yozoendeswa kune yakaoma kuti itonhore kusvika kune yakaenzana tembiricha isati yayera. Kudzokororwa kuomeswa uye kuomeswa kusvikira uremu hunogara huripo kana kurasikirwa kwehuremu huri pasi pe4% yehuremu hwekare. Kuti udzivise kuomesa kwakawanda, kuomesa, uye kuyerwa, nhanho yega yega yekuvhiya uye nguva inofanirwa kunyatsodzorwa uye kupedzwa zvakazvimiririra nenyanzvi yemurabhoritari kuti ive nechokwadi chemaitiro anowirirana.
Sampuli dzemvura dzakaunganidzwa dzinofanirwa kuongororwa uye kuyerwa nekukurumidza sezvinobvira. Kana dzichida kuchengetwa, dzinogona kuchengetwa mufiriji 4oC, asi nguva yekuchengetedza yemasampuli emvura haifaniri kudarika mazuva manomwe. Kuti uite mibairo yekuyera ive yakarurama sezvinobvira, pakuyera masampuli emvura ane hukuru hweSS hutsika hwakadai seaeration yakasanganiswa mvura, vhoriyamu yemvura sampu inogona kuderedzwa zvakakodzera; nepo pakuyera masampuli emvura ane yakaderera SS kukosha seyechipiri sedimentation tank effluent, vhoriyamu yemvura yekuyedza inogona kuwedzerwa zvakakodzera. Volume yakadaro.
Pakuyera kuwanda kwedhaka nehukuru hweSS senge sludge yekudzoka, kuitira kudzivirira midhiya sesefa se membrane membrane kana pepa resefa kubva pakubata yakawandisa yakaturikwa yakaoma uye kupinza mvura yakawandisa, nguva yekuomesa inofanira kuwedzerwa. Paunenge uchiyera uremu hwenguva dzose, zvakakosha kuti Chenjerera kuti uremu hunochinja sei. Kana kuchinja kwakanyanya, kunowanzoreva kuti SS pa membrane membrane yakaoma kunze uye yakanyorova mukati, uye nguva yekuoma inoda kuwedzerwa.
Nguva yekutumira: Oct-12-2023
