Kev txiav txim siab tseem ceeb rau kev sib cuag Oxidation txheej txheem ua haujlwm
Taw qhia
Cov txheej txheem oxidation tiv tauj yog biofilm -raws li txoj kev kho dej khib nyiab uas cov kab mob loj tuaj txuas rau cov nqa khoom (xws li, elastic lossis fibrous fillers) hauv lub tank aerated. Nws tshem tawm cov organic teeb meem (BOD/COD) thiab ammonia (NH₄⁺-N) los ntawm microbial degradation.
Qhov Zoo Tshaj Plaws:
- Ua haujlwm siab: Siv tau rau ob qho tib si organic thiab nitrogen tshem tawm.
- Compact Design: Me me hneev taw vs. activated sludge systems.
- Kev ua siab ntev: Tolerates load fluctuations zoo dua.
- Tsawg Sludge Yield: Txo cov nqi pov tseg sludge.
Kev txiav txim siab ua haujlwm tseem ceeb & Kev daws teeb meem
Cov txheej txheem oxidation tiv tauj yuav tsum tau ua tib zoo tswj xyuas kom muaj txiaj ntsig zoo. Cov kev sib tw uas muaj xws li:
1. Xaiv cov khoom siv Biofilm
Cov khoom siv biofilm ua qhov nruab nrab rau microbial txuas thiab cuam tshuam ncaj qha rau biomass, spatial faib, metabolic kev ua, thiab txawm tias dej / huab cua faib rau hauv lub tank oxidation. Ntxiv rau cov kev cai dav dav xws li kev ua haujlwm ntev thiab tus nqi nruab nrab, cov yam ntxwv xws li cov dej khib nyiab thiab cov concentration yuav tsum tau txiav txim siab.
- High -cov dej khib nyiab
- Microbial kev loj hlob sai, ua rau cov biofilms tuab.
- Cov neeg nqa khoom pom zoo: Elastic carriers uas pab txhawb biofilm sloughing.
- Tsawg- dej khib nyiab
- Microbial kev loj hlob qeeb, ua rau nyias nyias.
- Cov neeg nqa khoom pom zoo: Cov khoom siv fiber ntau lossis cov khoom sib xyaw nrog cov chaw tshwj xeeb saum npoo los txhim kho biofilm adhesion.
- Nitrification cheeb tsam (rau lom nitrogen tshem tawm)
- Nitrifying kab mob yog nruj aerobes thiab loj hlob tsuas yog nyob rau ntawm biofilm nto.
- Cov neeg nqa khoom pom zoo: Tshem tawm lossis elastic 3D cov cab kuj nrog cov khoom sib txawv ntawm qhov sib txawv thiab thaj chaw siab.
- Rau cov cab kuj raug tshem tawm:
- Cov txheeb ze ntom ntom yuav tsum siab dua dej me ntsis thaum biofilm txuas nrog.
- Qhov no tso cai rau cov neeg nqa khoom sib xyaw kom huv si nrog cov dej khib nyiab hauv qab aeration, txhim kho kev hloov pauv loj thiab txhawb nqa cov khoom siv biofilm ntau dhau.
2. Tiv thaiv kom tsis txhob muaj ntau dhau ntawm Biofilm loj hlob thiab pob
Hauv cov kab ke nrog cov nqa khoom ruaj khov lossis raug tshem tawm, cov cab kuj yuav tsum tau muab tso rau hauv txhua lub tank rau kev tshuaj xyuas ib ntus. Yog tias cov ntaub ntawv biofilm dhau los ua tuab (dub, foul-smelting) thiab cov dej tsis zoo, "biofilm stripping"Kev ntsuas yuav tsum tau ua:
- High-flow/high-Aeration flushing: Instantly dislodges tuab biofilms.
- Txoj kev "Anoxic tshaib plab".: Tso tseg ib ntus aeration kom induce anaerobic fermentation, tsis muaj zog biofilm adhesion ua ntej yaug.
Rau kev lag luam khib nyiab nrog cov kua nplaum nplaum(piv txwv li, cov suab thaj hauv cov dej khib nyiab, oligomers hauv cov dej khib nyiab acrylic, PVA hauv cov dej khib nyiab):
- Kev xaiv tus cab kuj: Siab -porosity ntab lossis elastic 3D cov cab kuj kom txo qis pob.
- Kev kho mob: Siab- siv cua / dej ntws tawm; hloov cov neeg nqa khoom yog tias hnyav hnyav.
3. Lub sij hawm tshem tawm cov sludge ntau dhau
Sludge nyob rau hauv kev sib cuag oxidation tank feem ntau yog los ntawm:
- Tso cov laus biofilms.
- Ua tsis tiav tshem tawm cov khib nyiab los ntawm pretreatment.
Kev cuam tshuam ntawm sludge accumulation:
- Loj sludge flocs nce effluent COD vim endogenous decay.
- Clogging ntawm zoo - npuas aerators.
Kev ntsuas txo qis:
- Tsis tu ncua xyuas sludge deposition thiab tshem tawm cov khib nyiab concentration.
- Txoj kev tshem tawm sludge:
- Tshem tawm cov sludge dub.
- Loosen sludge ntawm intensified aeration ua ntej tso tawm.
- Ib ntus nruab ib ntus auxiliary air lances los resuspend sludge nyob rau hauv qhov chaw tuag.