Qatar cov dej phwj loj tshaj plaws: Doha West Wastewater Treatment Plant
Doha, lub peev ntawm Qatar, muaj tag nrho cheeb tsam ntawm 132 square kilometers. Nws muaj qhov chaw kho dej phwj loj tshaj plaws hauv Qatar - Doha West Sewage Plant, nrog rau tag nrho cov kev kho mob txhua hnub txog li 280,000 tons.
Cov txheej txheem kev kho dej phwj tuaj: grille - xuab zeb daws - cov txheej txheem qhib sludge - thib ob lub tank - xuab zeb lim - ultrafiltration - ultraviolet tshuaj tua kab mob
Niaj hnub no peb tsuas yog tham txog tshuaj tua kab mob chlorine thiab tshuaj tua kab mob ultraviolet.
1. Cov tshuaj tua kab mob chlorine VS tshuaj tua kab mob ultraviolet
Thaum lub sij hawm thib tsib nthuav dav ntawm Doha West Sewage Plant, thawj cov tshuaj tua kab mob tshuaj tua kab mob tau hloov mus rau kev tua kab mob ultraviolet, lub hom phiaj yog los tiv thaiv kev sib tsoo los ntawm cov pa roj chlorine thiab tshem tawm cov tiam ntawm cov tshuaj tua kab mob los ntawm cov khoom lag luam.
Los ntawm kev sib piv cov tshuaj tua kab mob ultraviolet thiab tshuaj tua kab mob chlorination, peb tuaj yeem pom tias,
1) Pertinence: Ultraviolet tshuaj tua kab mob yog tshem tawm nws lub peev xwm ua me nyuam ua rau tsis muaj zog, yog li nws muaj kev cuam tshuam rau feem ntau cov kab mob thiab cov kab mob; Qhov teeb meem loj tshaj plaws nrog tshuaj tua kab mob chlorination yog tias nws tsis muaj txiaj ntsig tiv thaiv qee cov kab mob thiab cov kab mob.
2) Cov khoom siv los ntawm: Txij li cov tshuab tua kab mob ultraviolet tsis ntxiv cov tshuaj, cov kab hluav taws xob ultraviolet yuav tsis ua rau cov pa phem hauv lub cev thiab ib puag ncig ib puag ncig, thiab yuav tsis hloov cov khoom hauv dej; sodium hypochlorite tshuaj tua kab mob yuav tsim ntau dua. tshuaj tua kab mob los ntawm cov khoom lag luam, xws li trichlor Acetic acid, diaminoacetic acid, chloroform, thiab lwm yam.; Tom qab tus Tsov tus tw dej yog tshuaj tua kab mob los ntawm cov kua chlorine, cov tshuaj lom uas seem yuav tsim cov ntxhiab tsw, uas yog qhov khaus khaus, thiab cov tshuaj tua kab mob los ntawm cov khoom yuav raug tsim tawm thaum lub sij hawm tshuaj tua kab mob.
3) Kev tswj xyuas kev ua haujlwm: Ultraviolet tshuaj tua kab mob yog siv los ntawm hluav taws xob, thiab nws yooj yim rau kev ua haujlwm txhua hnub.Lub teeb ultraviolet thiab lub tes tsho quartz tsuas yog yuav tsum tau hloov thiab tshem tawm tsis tu ncua; tshuaj tua kab mob sodium hypochlorite yuav tsum tsis txhob khaws cia rau lub sijhawm ntev, thiab feem ntau tsuas yog ob peb hnub tshwj tseg kom tau raws li cov tshuaj tua kab mob; Chlorine gas pheej hmoo siab dua, kev tiv thaiv kev ruaj ntseg ntau dua, kev tswj xyuas nyuaj.
4) Cov tshuaj tua kab mob tom qab: kev tua kab mob ultraviolet tsis tuaj yeem muab cov tshuaj tua kab mob ntxiv.Tom qab cov dej kho tau tawm ntawm lub reactor, qee cov kab mob tua los ntawm ultraviolet rays yuav kho qhov puas DNA molecules nyob rau hauv lub photoreactivation mechanism kom rov tsim cov kab mob; Tom qab cov tshuaj tua kab mob ua kua chlorine, tseem muaj qee yam ntawm cov tshuaj chlorine seem nyob rau hauv tus Tsov tus tw dej, thiab cov tshuaj tua kab mob kua chlorine muaj cov tshuaj tua kab mob seem.
5) Cov kev cai dej zoo: Cov txheej txheem tshuaj tua kab mob ultraviolet tsis haum rau cov dej tsis zoo nrog cov dej tsis zoo ntawm lub teeb ultraviolet (cov dej phwj tuaj nrog SS siab dua 30mg / L), uas yuav tsis tsuas yog nce lub zog noj, tab sis kuj ua rau cov tshuaj tua kab mob tsis zoo. Kev nkag mus ntawm cov dej phwj tuaj kho thiab cov dej rov qab yog feem ntau yog 40-80 feem pua, thiab nws yog ib qho kev xaiv zoo rau kev siv tshuaj tua kab mob ultraviolet; chlorination tshuaj tua kab mob tsis muaj cov kev xav tau siab ntawm cov dej zoo, thiab feem ntau tuaj yeem ua tau raws li cov dej zoo ntawm kev kho dej phwj tuaj. qab dej.
6) Lub sijhawm kho mob: Lub sijhawm sib cuag rau cov tshuaj tua kab mob tshuaj chlorine feem ntau yog 10-30 feeb, lub sijhawm rau tshuaj tua kab mob sodium hypochlorite luv me ntsis, thiab lub sijhawm rau tshuaj tua kab mob ultraviolet yog luv tshaj.
