Sedimentation Tank
Sedimentation Tank yog dab tsi?
Lub tank sedimentation yog cov qauv kev kho mob uas tshem tawm cov khoom tshem tawm denser dua dej los ntawm kev nqus dej. Nws yog ib qho ntawm cov khoom siv dav siv hauv kev kho dej khib nyiab, siv tau rau hauv kev kho ua ntej, tom qab-kev kho mob lom, thiab kev kho mob siab heev. Lub hauv paus ntsiab lus ntawm sedimentation yog siv nyob rau hauv:
- Grit chavtshem tawm inorganic impurities.
- Primary sedimentation tankstshem tawm cov khib nyiab thiab lwm yam khoom me me.
- Secondary sedimentation tankskom cais cov activated sludge los ntawm cov tshuaj lom neeg kho mob.
- Thickening tankskom concentrate sludge los ntawm kev sib cais dej.
- Kev kho mob siab heevcov txheej txheem uas cov coagulants tau ntxiv rau cov effluent thib ob kom tshem tawm cov khoom seem uas raug tshem tawm.
Lub tank sedimentation muaj tsib thaj chaw:
- Inlet Zone: Ua kom muaj kev faib tawm tsis sib xws, txo qis luv -circuiting thiab turbulence, thiab txo qhov chaw tuag los txhim kho lub tank efficiency.
- Thaj Chaw(Clarification Zone): Nyob qhov twg cov khoom sib cais los ntawm cov dej khib nyiab.
- Sludge Zone: Rau khaws cia, concentration, thiab tso tawm ntawm cov sludge.
- Buffer Zone: Sib cais cov chaw nyob thiab cov sludge kom tiv thaiv kev rov ua haujlwm ntawm cov khoom siv vim muaj kev cuam tshuam txaus ntshai.
- Qhov hluav taws xob Zone: Sau cov dej kom meej thaum tswj xyuas cov dej ntws zoo ib yam.
Lub Sedimentation Tank ua haujlwm li cas?
Sedimentation tanks ua haujlwm ntawm lub hauv paus ntsiab lus uas hais nrog adaws kev tshaj tawm ntau tshaj qhov nce siab tshaj tawmntawm cov dej (los yog nws lub sij hawm daws teeb meem tsawg dua lub sij hawm tuav hydraulic) yuav cais tawm ntawm qhov ntws.
Nyob rau hauv ib tug zoo tagnrho sedimentation tank, kev kho mob efficiency nyob ntawm tusnto loading tus nqi(piv txwv li, tank nto cheeb tsam), tsis tob. Tank qhov tob tsuas yog cuam tshuam rau sludge cia, tiv thaiv kev khawb, thiab lub sijhawm khaws cia. Txawm li cas los xij, hauv kev ua haujlwm tas mus li - cov tso tsheb hlau luam:
- Particles nrog velocitiesqis dua qhov nce siab tshaj tawm(ua los ntawm weir overflow) yog nqa mus.
- Particles nrog velocitiessib npaug rau upward flow velocitynyob twj ywm raug ncua.
- Tsuas yog cov particle nrog daws qhov nrawmsiab tshaj qhov nce siab tshaj tawmnyob.
Lub sijhawm rau cov khoom mus rau hauv qab yog cuam tshuam nrog lub sijhawm tuav hydraulic, uas cuam tshuam los ntawm qhov tob tank. Theoretically,cov dej ntiav ntiav tso cai kom daws tau sai, uas yog lub hauv paus rau ntiav sedimentation technologies zoo liinclined phaj los yog tube settlers. Ib cheeb tsam tsis nyob nruab nrab ntawm thaj chaw nyob thiab thaj chaw sludge tiv thaiv cov khoom rov qab los ntawm kev nce ntxiv los ntawm kev txhawb nqa re- daws los ntawm kev sib tsoo particle.
Dab tsi yog Hom Sedimentation Tanks? Lawv qhov zoo, qhov tsis zoo, thiab kev siv.
Raws li cov kev taw qhia ntws, sedimentation tank yog categorized rau hauv:
- Kab rov tav Flow Sedimentation Tanks
- Radial Flow Sedimentation Tanks
- Vertical Flow Sedimentation Tanks
- Inclined Phaj / Tube Settler(tsim raws li "kev xav tob tob").
Qhov zoo, qhov tsis zoo, thiab kev siv ntawm txhua hom tau sau tseg hauv cov lus hauv qab no:
| Kev sib piv kev sib piv ntawm Common Sedimentation Tanks | |||||
| Hom | Qhov zoo | Qhov tsis zoo | Daim ntawv thov | ||
| Kab rov tav Flow |
1. High sedimentation efficiency 2. Muaj zog adaptability rau shock loads thiab kub hloov |
1. Kev faib dej tsis sib xws, tsis tu ncua sludgedischarge 2. Ntau - hopper sludge tawm yuav tsum tau cais cov kav dej rau txhua lub hopper (siab ua haujlwm siab) 3. Chain scrapers yog qhov yooj yim rau corrosion ntawm submerged Cheebtsam |
1. Haum rau cov cheeb tsam uas muaj dej hauv av siab thiab tsis zoo rau geological 2. Muaj feem xyuam rau cov chaw kho dej loj, nruab nrab, thiab me me |
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| Radial Flow |
1.Mechanical sludge paug nrog standardizedequipment, yooj yim txij nkawm 2. Kev ua haujlwm ruaj khov |
1. Complex mechanical sludge discharge khoom 2. Cov kev xav tau siab rau kev tsim kho zoo |
1. Haum rau thaj chaw uas muaj dej hauv av siab 2. Muaj feem xyuam rau qhov loj thiab nruab nrab - cov chaw kho dej khib nyiab loj |
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| Vertical Flow |
1. Yooj yim sludge tawm thiab kev tswj yooj yim 2. Me hneev taw |
1. Qhov tob loj, kev tsim kho nyuaj, thiab tus nqi siab 2. Tsis zoo adaptability rau poob siab loads thiab kub hloov 3. Txwv txoj kab uas hla ntawm lub tank kom tsis txhob muaj dej tsis sib xws |
Haum rau cov chaw kho dej me me | ||
| Inclined Phaj / Tube |
1. High hydraulic loading tus nqi thiab efficiency 2. Lub sij hawm retenton luv thiab hneev taw me me |
1. Cov qauv tsis yooj yim, yooj yim rau clogging, yuav tsum tau hloov lub sij hawm ntawm cov phaj / raj 2. Tsawg siab kam rau siab loads thiab shock loads; yuav tsum tau cov cuab yeej ntxhua khaub ncaws |
1. Haum rau nruab nrab thiab me me cov dej khib nyiab kho cov nroj tsuag 2.Retrofitting uas twb muaj lawm sedimentation tso tsheb hlau luam los txhim kho lub peev xwm |
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