Daim ntawv thov ntawm cov yas pall nplhaib hauv Aeration taub thiab cua stripping yees
Yas pall nplhaib tuaj yeem siv rau hauv cov taub taw thiab cua stripping yees, thiab yog ib qho kev xaiv uas muaj zog thiab muaj txiaj ntsig zoo ntawm cov yees.
Nov yog cov laj thawj yog vim li cas yas pall nplhaib haum rau ob daim ntaub ntawv:
1. Cov cheeb tsam tshwj xeeb thaj tsam:
Lub complex qhov rai qauv ntawm lub nplhaib ntiv nplhaib muaj qhov chaw loj tshwj xeeb thaj tsam (feem ntau nyob rau thaj tsam ntawm 100 - 250 m² / m³).
Aeration ntauwd: thaj chaw loj tshwj xeeb nyob rau huab cua (oxygen) thiab dej kom haum rau cov nqi hloov pauv (oxygen hloov pa, uas yog lub hom phiaj tseem ceeb ntawm cov txheej txheem erationeration.
Huab cua Stripping ntauwd: zoo sib xws, qhov loj tshwj xeeb nto thaj chaw tso cai rau cov pa paug, thiab lwm yam) ntawm cov pa phem rau theem ua kua rau theem roj.
2. Cov kua dej zoo heev (tsis tshua muaj kev tiv thaiv / qis qis poob):
Lub cim tshwj xeeb ntawm lub pob nplhaib tsis tsuas yog nce thaj tsam thaj chaw, tab sis tseem ceeb tshaj, rhuav tshem cov dej ntws thiab txhawb nqa kev faib tawm ntawm cov kua. Nyob rau tib lub sijhawm, cov roj channel tsis muaj kev tiv thaiv thiab cov tsis kam yog me me.
Aeration ntauwd: cov kev hloov siab tsis tshua muaj zog txhais tau txhais tau tias qis dua cov neeg siv hluav taws xob thiab cov nqi ua haujlwm ua haujlwm ntau dua.
Huab cua Stripping Ntauwd: Qis Siab Poob kuj txo cov tshuab siv hluav taws xob zoo. Tseem ceeb tshaj, qis siab poob tso cai rau kev siv cov roj ntau dua cov kua (ntau cov cua) tsis muaj dej nyab, uas yog qhov tseem ceeb rau kev txhim kho stripping kev ua haujlwm.
3. Cov kua dej ua kom zoo thiab ntub dej:
Lub qhov rai qauv pab ua kua kom tau txais ntau zaus hauv cov txheej ntim, txo cov channel ntws, kom cov nplaim ntim tau ntau dua wetted.
Aeration ntauwd & Air stripping ntauwd: zoo ntub yog lub hauv paus rau kev txhim kho huab hwm coj ua tau zoo (oxygen hloov chaw). Thaj npoo av ntawm cov ntim uas tsis yog wetted los ntawm cov kua tsis muaj txiaj ntsig.
4. Porosity siab:
Cov Media Pall nplhaib muaj lub siab porosity (feem ntau 0.9 - 0.95 mp / mp).
Aeration yees & Air striping yees: siab porosity muab cov teeb meem dej txaus, txo qhov kev pheej hmoo ntawm cov teeb meem uas muaj teeb meem ncua tseem yuav tsum tau tswj hwm). Qhov no kuj txhais tau tias txo qis siab poob.
5. Cov ntsiab lus zoo (plastics - pp, PVC, CPVC, thiab lwm yam):
Kev nthuav dav: Yooj yim rau nruab thiab tswj.
Corrosion Kuj: Zoo corrosion tsis kam rau cov dej ib puag ncig (xws li cov dej phwj si, kev lag luam muaj dej loj heev). Xaiv cov khoom siv yas yas (xws li CPVC rau qhov kub lossis txias dua lossis ib puag ncig tshuaj tshwj xeeb) tuaj yeem ua tau raws li cov kev xav tau tshwj xeeb.
Kev lag luam: Yas pall nplhaib feem ntau tsawg dua li cov hlau lossis cov ceramic fillers.
Txhim kho Hydrophilicity: Ntau lub nplhaib sib zog siv nyob rau hauv dej kev hloov kho (xws li hydroughilization) los txhim kho lawv cov peev xwm los txhim kho los ntawm dej, uas yog qhov tseem ceeb heev rau kev txhim kho kev ua haujlwm loj.
Yog tias koj xav tau pall ib ncig,Hu rau tam sim no, vim li cas ho tsis?
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- Tshem tawm cov khib nyiab tswj:Txawm hais tias qhov porosity yog siab, lub concentration ntawm cov khib nyiab (SS) nyob rau hauv lub inlet dej ntawm ib qho, tsis pub dhau lub sijhawm ntev heev kuj tseem yuav ua rau cov khoom ntim kom thaiv. Feem ntau, lub tshuab lim yuav tsum tau nruab rau hauv ntej ntawm tus pej thuam.
- Scaling / biofilm:Hauv qee cov dej muaj txiaj ntsig (xws li cov dej nyuaj, dej nplua nuj nyob hauv cov microorganisms), cov nplaim hluav taws xob tuaj yeem teev lossis kev tu cev thiab kev tu thiab tu tsev.
- Cov Khoom Xaiv:Xaiv cov ntaub ntawv yas tsim nyog (xws li PP rau kev siv dav dav, PVC rau cov tshuaj yeeb zoo thiab corrosion tsis kam, thiab tshuaj lom neeg) ntawm cov dej kho.
- Hydrophilicity:Nco ntsoov tias xaiv cov pall yas pall nplhaib yog hydrophilic kom tau txais qhov zoo tshaj plaws ntub kev ua tau zoo thiab loj hloov kev ua haujlwm.
- Ntau hom qauv:Cov txheej txheem ntim (random stacking), tus tsim ntawm cov khoom siv kua ua kua, thiab lwm yam. Txhua yam kev tsim qauv ua kom tiav rau kev ua tau zoo ntawm cov hnab ntim yas nplhaib packing.
