Los ntawm: Kate
Email:kate@aquasust.com
Hnub tim: 4 Kaum Ob Hlis 2024
Lub luag hauj lwm ntawm lub thib ob sedimentation tank nyob rau hauv dej phwj kho
Lub luag haujlwm ntawm lub tank thib ob yog cais cov av nkos thiab dej kom paub meej cov tshuaj lom neeg sib xyaw cawv, thiab tib lub sijhawm kom mloog cov sludge hauv cov cawv sib xyaw. Qhov thib ob sedimentation tank yog qhov txuas kawg hauv kev kho cov dej phwj hauv lom, thiab ua lub luag haujlwm txiav txim siab kom ntseeg tau tias cov ntsiab lus tshem tawm ntawm cov dej tsis zoo yog tsim nyog.
Yog hais tias qhov thib ob sedimentation tank tsis tau teeb tsa tsim nyog, txawm tias cov txiaj ntsig kev kho mob lom neeg zoo heev, cov ntsiab lus ntawm cov organic yaj hauv cov cawv sib xyaw yog me me, thiab cov nyhuv ntawm cov av nkos thiab dej sib cais ntawm cov cawv sib xyaw hauv cov dej cawv. Secondary sedimentation tank tsis zoo tagnrho, cov dej effluent zoo kuj tseem tsis tsim nyog.
Yog tias cov nyhuv sludge concentration tsis zoo, tus nqi ntawm cov kab mob rov qab mus rau hauv lub tank aeration yuav nyuaj rau lav, thiab qhov txo qis hauv cov concentration ntawm aerated mix cawv yuav ua rau txo qis hauv cov dej phwj tuaj kho, uas yuav tig mus. cuam tshuam cov dej tsis zoo.
Cov kev xav tau yooj yim rau kev teeb tsa cov twj tso kua mis thib ob
1. Lub hydraulic load feem ntau yog 0.5-1.8m3/(m2·h). Thaum kho cov dej khib nyiab hauv kev lag luam, qhov kev faib ua feem ntawm cov organic teeb meem hauv cov activated sludge yog qhov loj, thiab SVI ntawm cov cawv sib xyaw hauv lub tank aeration yog qhov siab. Qhov thib ob sedimentation tank matched nrog nws yuav tsum tau txais ib tug qis deg hydraulic load.
2. Txhawm rau kom ntseeg tau tias cov sludge tuaj yeem ua kom txaus siab nyob rau hauv lub tank thib ob kom muab cov sludge rov qab los ntawm qhov xav tau ntawm lub tank aeration, cov khoom nto ntawm lub tank thib ob sedimentation yog 150kg / (㎡·d. ), thiab cov khoom nto load ntawm lub inclined raj (phaj) theem nrab sedimentation tank yuav nthuav mus rau 192kg (㎡·d).
3. The water depth at the edge of the secondary sedimentation tank should be 2.5-4m. The specific value is related to the size of the tank body. The larger the diameter of the secondary sedimentation tank, the water depth at the edge should be appropriately increased, otherwise the hydraulic efficiency of the secondary sedimentation tank will be reduced and the effective volume will be reduced. For secondary sedimentation tanks with diameters of 10-20m, 20-30m, 30-40m and >40m, qhov tob dej ntawm ntug pas dej yog 3.0m, 3.5m, 4.0m thiab 4.0m raws. Thaum lub pas dej da dej saum toj no tsis tuaj yeem ua tiav vim muaj ntau yam laj thawj, tus nqi qis qis yuav tsum tau siv los tswj lub sij hawm sedimentation tsis hloov.
4. Tus nqi ntws tawm (los yog thauj khoom) ntawm lub qhov hluav taws xob nruab nrab ntawm lub qhov hluav taws xob yog 1.5-2.9L/(m·s).
5. Thaum siv cov khoom siv sludge tawm, qhov ntim ntawm cov sludge cheeb tsam ntawm lub thib ob sedimentation tank yuav tsum tau xam raws li lub sij hawm nyob rau hauv lub sludge yuav tsum tau concentrated mus rau qhov yuav tsum tau concentration. Qhov ntim ntawm sludge cheeb tsam ntawm cov txheej txheem activated sludge theem nrab sedimentation tank feem ntau yog 2-4h sludge ntim, thiab kev ntsuas sludge tawm mus tas li yuav tsum tau ua. Qhov ntim ntawm sludge cheeb tsam ntawm biofilm txoj kev theem nrab sedimentation tank yog feem ntau 4h sludge ntim.
6. Yuav kom txo tau lub zog noj, nws yog qhov zoo tshaj plaws los siv lub taub hau qis, cov khoom siv siab xws li cov twj tso kua mis los yog cov twj tso kua mis axial txaus rau cov sludge rov qab. Yog tias siv lub zog aeration, lub tshuab nqa lub tshuab tuaj yeem siv los ua kom yooj yim rau kev tswj thiab tu cov cuab yeej.
Kev ceev faj rau kev ua haujlwm thiab kev tswj hwm ntawm cov dej xau theem nrab
1. Tshawb xyuas thiab kho cov khoom faib dej ntawm lub tank thib ob tsis tu ncua kom ntseeg tau tias cov kua sib xyaw ua ke nkag mus rau hauv txhua lub tank thib ob sedimentation zoo ib yam.
2. Txheeb xyuas cov slag sag sau nyob rau hauv lub thoob slag thiab tso tawm raws sij hawm, thiab yaug lub slag thoob nrog dej nquag. Nyob rau tib lub sijhawm, ua tib zoo saib seb lub slag scraper thiab slag thoob baffle puas zoo sib xws, thiab kho lossis kho lawv raws sijhawm.
3. Tshawb xyuas thiab kho qhov tiaj tus ntawm lub qhov hluav taws xob lub qhov hluav taws xob tsis tu ncua txhawm rau tiv thaiv qhov tsis sib xws ntawm qhov hluav taws xob thiab qhov tshwm sim luv luv, thiab tshem tawm tam sim ntawd tshem tawm cov slag dai ntawm lub weir phaj thiab biofilm dai ntawm lub qhov hluav taws xob lub tank.
4. Thaum lub sijhawm tshuaj xyuas, ua tib zoo saib xyuas qhov ntsuas qhov ntsuas ntawm cov dej ntws tawm, xws li qhov siab hloov pauv ntawm cov sludge interface, tus nqi ntawm cov sludge raug tshem tawm, seb puas muaj sludge ntab, thiab lwm yam, thiab siv cov phiaj xwm ntsuas los daws qhov teeb meem hauv lub sijhawm. tom qab pom qhov txawv txav, thiaj li tsis cuam tshuam rau cov dej zoo.
5. Thaum lub sijhawm kuaj xyuas, ua tib zoo mloog seb puas muaj lub suab txawv txav hauv cov sludge scraping, slag scraping, thiab sludge discharge cov cuab yeej, thiab xyuas seb puas muaj qhov xoob xoob, thiab lwm yam, thiab kho lossis kho raws sijhawm.
6. Tsis tu ncua (feem ntau ib xyoos ib zaug) muab tso rau hauv lub tank thib ob rau kev tshuaj xyuas thiab kev saib xyuas, tsom rau kev tshuaj xyuas seb puas muaj qhov txawv txav ntawm cov khoom siv hauv qab dej, cov kav dej, pas dej hauv qab thiab cov khoom siv sib koom ua ke, thiab kho raws li qhov xwm txheej tshwj xeeb.
7. Txij li thaum lub thib ob sedimentation tank yog feem ntau faus tob, thaum cov av theem siab thiab lub thib ob sedimentation tank yuav tsum tau emptied, thiaj li yuav tiv thaiv tau lub phenomenon ntawm drifting, nws yog tsim nyog los xyuas kom meej qhov tshwj xeeb qhov teeb meem ntawm cov av hauv av theem. ua ntej. Yog tias tsim nyog, qib dej tuaj yeem txo qis ua ntej nchuav.
8. Ua raws sij hawm soj ntsuam thiab kev soj ntsuam ntawm cov khoom siv niaj hnub soj ntsuam ntawm lub tank thib ob raws li kev cai.