Dab tsi nyuaj Ua Tube Settlers coj mus rau Kev Kho Dej Siv Dej Sedimentation Efficiency?
Kev ua kom zoo sedimentation yog ib qho tseem ceeb hauv kev kho dej thiab dej khib nyiab thiab qhov teeb meem rau ob qho tib si clarity ntawm cov dej kho thiab cov txheej txheem tom ntej. Txawm li cas los xij, raws li cov kev cai ib puag ncig nruj thiab cov kev cai ua haujlwm loj tuaj yeem xav tau ntau dua, cov tsoos sedimentation tso tsheb hlau luam nce ntxiv pom lawv tus kheej tsis tuaj yeem ua tiav qib tsim nyog. Kev siv dav dav ntawm cov neeg nyob hauv tube-ib txoj kev tshiab ntawm kev ua sedimentation-yog qhov tshwm sim ntawm qhov kev sib tw no.
Rau kev txhim kho cov txheej txheem sedimentation, tube settlers yog compact thiab siv tau zoo technology kom muaj ib tug deg cheeb tsam thiab txo tus hneev taw ntawm sedimentation tso tsheb hlau luam los ntawm 8-25 zaug. Lawv yog cov khoom siv yooj yim thiab muaj txiaj ntsig zoo hauv cov chaw kho mob thoob ntiaj teb vim lawv muaj peev xwm los txhim kho cov khib nyiab tshem tawm thiab txhim kho cov dej ntshiab.
Yog li dab tsi yog tube settlers, lawv ua haujlwm li cas thiab lawv puas tsim nyog xav txog cov chaw kho mob? Hauv tsab xov xwm no peb yuav pib taug kev los nkag siab txog cov hauv paus ntsiab lus, cov txiaj ntsig ntawm cov txiaj ntsig, thiab kev siv lub ntiaj teb tiag tiag ntawm cov neeg nyob hauv lub raj rau koj kom nkag siab tag nrho lawv cov lus cog tseg hloov pauv.
Tube Settler yog dab tsi?
Tube settlers yog ib qho kev daws teeb meem zoo tshaj plaws los txhim kho cov txheej txheem sedimentation hauv cov dej thiab cov dej khib nyiab. Tus nqi siv tau los ua kom muaj kev ua kom muaj dej ntau ntxiv los ntawm kev nce hauv thaj tsam ntawm thaj chaw uas tsis muaj qhov loj ntawm lub tank yog cov qauv no uas muaj xws li inclined tubular channels los yog cov phaj uas tsim los ntawm cov khoom siv hnyav thiab ruaj khov (xws li PVC lossis polypropylene) (Metcalf & Eddy. , 2013). Yog li ntawd, lawv pab cov chaw ua tau raws li cov kev txwv nruj dua ntawm cov dej tsis zoo thaum muaj kev txwv tsis pub siv thiab ua haujlwm.
Lub hauv paus ntsiab lus ntawm tube settlers yog lawv lub peev xwm los txhawb cov laminar ndlwg tej yam kev mob rau zoo sedimentation. Nrog cov tsoos sedimentation tanks, particle sedimentation suffers los ntawm turbulence. Lub inclined nto ntawm tube settlers tsim ntau yam discrete settling zones. Cov chaw no ua haujlwm nyob rau hauv txoj kev uas cov khoom nyob rau ntawm cov chaw no thiab xaub mus rau hauv sludge sau cheeb tsam hauv qab, tom qab uas cov dej ntshiab tau tso tseg. Nws paub tias cov neeg nyob hauv lub raj tuaj yeem ua kom cov khoom tshem tawm tau nce mus txog 50% hauv cov xwm txheej sib txawv (Tchobanoglous li al., 2014).
Tube settlers yog ntawm chav kawm kuj tau yoog rau tam sim no cov kav dej. Cov kev hloov pauv muaj nyob rau hauv kev teeb tsa uas haum rau cov chaw kho dej tshwj xeeb xav tau. Lub teeb yuag ntawm cov culverts siv kuj ua rau lawv yooj yim rau nruab thiab tswj, thiab lawv tuaj yeem nyob rau hauv qhov chaw huab cua nrog kev thauj khoom siab lossis qhov kub thiab txias (Neyens & Baeyens, 2003). Kev yoog raws thiab kev ntseeg siab ntawm cov kav dej tso cai rau lawv los ua ib qho tseem ceeb ntawm cov txheej txheem sedimentation niaj hnub no.
Tube Settler ua haujlwm li cas hauv Sedimentation Tanks?
Tube settlers ua hauj lwm raws li lub hauv paus ntsiab lus ntawm qhov tob tob sedimentation. Ncua tseg cov khoom nyob rau hauv cov tsoos sedimentation tso tsheb hlau luam poob rau hauv qab ntawm lub tso tsheb hlau luam ntawm lawv tus kheej siv lub ntiajteb txawj nqus thaum muaj ib tug loj deg cheeb tsam. Qhov no feem ntau xav tau ntau qhov chaw thiab sijhawm. Tube settlers kov yeej cov kev txwv no los ntawm kev sib npaug ntawm cov dav hlau inclined, yog li txo qhov tob tob thaum tseem txhim kho cov sedimentation efficiency. Tube settlers 'cov cim geometry txo qhov hydraulic tuav lub sijhawm thaum khaws cov khib nyiab siab, raws li Sakurai thiab Hiraoka (2019).
Cov khib nyiab raug tshem tawm ntsib qhov chaw inclined nyob rau hauv lub tube settlers, qhov twg cov dej ntws mus rau hauv lub raj settlers. Kev teeb tsa ntawm cov khoom yog ua kom muaj txiaj ntsig zoo nyob rau hauv qhov ntiav ntiav ntawm cov ces kaum thiab tswj cov dej ntws. Cov particles tau txais kev daws teeb meem thaum lawv tau daws ib zaug, thiab xaub cov dav hlau inclined thiab sau rau hauv qab lub tank. Nws qhia meej dej, dej ces tawm rau saum. Ib txoj hauv kev uas txo qis kev kub ntxhov, txhim kho qhov sib cais thiab muab kev ua haujlwm zoo ib yam hauv kev hloov pauv hydraulic (Eckenfelder, 2009).
Lwm qhov tseem ceeb tshaj plaws yog cov qauv siv ntau yam ntawm cov tube settlers. Muaj raws li retrofits rau cov tso tsheb hlau luam uas twb muaj lawm los yog tsim los rau hauv cov qauv tshiab, yooj yim rau ntau yam kev kho mob uas yuav tsum tau them. Cov ntaub ntawv tsim kho muaj zog no tseem tso cai rau lawv cov qauv tsim teeb pom kev zoo nyob ruaj khov nyob rau hauv ib puag ncig hnyav xws li cov chaw tsim khoom siab thiab cov chaw kho mob hauv nroog. Tube settlers kuj muaj cov kev nkag tau yooj yim rau kev tu yooj yim yog li txo qis qis thiab tu nqi (Metcalf & Eddy, 2013).
Tube settlers zoo heev pab txhawb kev kho cov txheej txheem los ntawm kev txhim kho sedimentation nqi thiab tsawg dua tank hneev taw. Cov no yog cov kev daws teeb meem zoo thiab muaj txiaj ntsig zoo rau cov chaw nrhiav kev txhim kho lawv cov kev tswj dej kom zoo, ua tau raws li kev cai tswj hwm thiab ua kom cov nqi khiav lag luam qis.
Cov txiaj ntsig ntawm Tube Settler yog dab tsi?
- Muaj peev xwm kho tau:Tube settlers tso cai rau cov nroj tsuag kev kho mob los kho cov dej ntws ntau dua nrog kev ua tau zoo dua los ntawm kev ua kom thaj chaw muaj kev daws teeb meem. Tshwj xeeb tshaj yog muaj txiaj ntsig thaum lub sijhawm xav tau siab tshaj plaws, qhov peev xwm no.
- Compact Footprint:Vim qhov txo qhov xav tau ntawm qhov chaw nyob hauv lub tank, tube settlers tsim nyog rau kev teeb tsa nrog thaj av tsawg. Nws kuj tso cai rau lub compact tsim yuav retrofitted rau hauv cov nroj tsuag uas twb muaj lawm.
- Txhim kho Effluent Quality:Tube settlers ua rau kom pom tseeb effluent thiab yog li yuav tsum tsis tshua muaj loads downstream txheej txheem nrog rau pom thiab tshuaj tua kab mob.
- Kev ua haujlwm raug nqi:Tube settlers xav tau kev hloov kho vaj tse me me thaum muab cov txiaj ntsig kev ua tau zoo. Kev txuag nyiaj ntxiv yog coj los ntawm kev saib xyuas qis ntawm lawv txoj haujlwm ua haujlwm.
- Versatility:Tube settlers muaj ntau yam rau ntau yam kev kho mob daim ntawv thov nrog rau cov dej kom meej meej; Secondary kev kho dej khib nyiab; thiab industrial txheej txheem dej rov qab.
Kev sib koom ua ke ntawm cov neeg nyob hauv lub raj pab txhim kho kev ua haujlwm ntawm kev ua haujlwm, thiab ua tau raws li cov hom phiaj kev ruaj ntseg ntawm kev ua kom zoo ntawm kev siv cov peev txheej thiab txo qhov cuam tshuam ib puag ncig (Eckenfelder, 2009).
Dab tsi yog txoj hauv kev los txhim kho Tube Settler Performance?
Txhawm rau ua kom muaj txiaj ntsig zoo ntawm cov kav dej, ntau yam yuav tsum tau xav txog:
- Tsim thiab Configuration:Qhov zoo ntawm lub raj sib nrug lub kaum sab xis ntawm inclination nrog rau kev xaiv cov khoom siv yog tsim nyog rau qhov zoo tshaj plaws khiav dynamics thiab daws qhov ua tau zoo.
- Flow Control:Txhawm rau tiv thaiv kom tsis txhob muaj kev kub ntxhov, lub tank sedimentation yuav tsum tswj xyuas cov nqi ntws los ntawm lub tank.
- Tsis tu ncua:Cov hlab ntsha txhaws raug tiv thaiv los ntawm kev tu lub sijhawm, uas tseem tso cai rau kev ua haujlwm zoo ntawm cov hlab ntsha thaum lub sijhawm.
- Kev koom ua ke nrog lwm cov txheej txheem:Kev txhim kho ntxiv ntawm kev tshem tawm cov nqi tuaj yeem ua tiav los ntawm kev sib txuas cov raj xaum nrog cov txheej txheem coagulation thiab flocculation.
Thaum cov xwm txheej no raug cuam tshuam nrog, cov chaw kho mob tuaj yeem siv tag nrho cov txiaj ntsig zoo ntawm lub raj xa hluav taws xob thiab nws cov dej theem nrab thiab kev txhim kho dej tau zoo (Neyens & Baeyens, 2003).
Xaus
Tube settlers sawv cev rau kev hloov pauv txoj hauv kev los txhim kho effluent los ntawm kev kho dej khib nyiab. Qhov txiaj ntsig ntawm lawv cov kev tsim kho tshiab, ua ke nrog lawv cov kev hloov pauv mus rau ntau yam kev kho mob, yog tias lawv tau dhau los ua ib feem tseem ceeb ntawm kev tswj xyuas dej niaj hnub no. Txij li cov chaw yuav tsum tiv thaiv cov kev xav tau nce ntxiv thiab kev tsim khoom, nrog rau cov qauv kev tswj hwm nruj, cov neeg nyob hauv lub raj muab kev cia siab thiab pheej yig txhais tau tias txhawm rau txhim kho kev kho mob thiab txo qis ib puag ncig lub luag haujlwm.
Cov ntaub ntawv
- Eckenfelder, WW (2009).Industrial Water Pollution Control. McGraw-Hill Education.
- Metcalf & Eddy. (2013).Wastewater Engineering: Kev Kho thiab Kev Pabcuam Rov Qab. McGraw-Hill Education.
- Neyens, E., & Baeyens, J. (2003). Kev tshuaj xyuas ntawm cov txheej txheem thermal sludge ua ntej kho kom txhim kho dewaterability.Tshawb nrhiav dej, 37(11), 2208–2222.
- Sakurai, T., & Hiraoka, M. (2019). Optimization ntawm Tube Settler rau Sedimentation Tanks hauv Kev Kho Dej Hauv Nroog.Phau ntawv Journal of Environmental Engineering, 145(7), 04019029.
- Tchobanoglous, G., Burton, FL, & Stensel, HD (2014).Wastewater Engineering: Kho thiab rov siv dua. McGraw-Hill Education.