Lub hauv paus rau phau ntawv
If you operate a small to medium-sized wastewater treatment plant, you may frequently encounter unstable treatment performance, such as fluctuating efficiency due to varying influent quality or sludge bulking. Puas muaj cov txheej txheem yooj yim dua uas tuaj yeem ua haujlwm ua haujlwm thaum txo qis sludge ntau lawm? Hnub no,Pas dejTshawb nrhiav txuas ntxivAERATION TSHUABThiab nws hais cov teeb meem no li cas.
Dab tsi yog ncua kev aeration?
Nyob rau hauv cov txheej txheem ua kom zoo, microbes yog feem ntau yog ib qho tsuas yog 4-8 teev, tawm hauv organic kuab paug (Cod \/ Bod) tsis muaj tso tsheb hlau luam. Txuas ntxiv Aeration, txawm li cas los xij, prolongs aeration rau 12-24 teev tom qab muaj kev txwv) cia lossis kev kho mob, pub microqes txaus lub sijhawm los tsoo cov organics. Nws cov ntsiab lus tseem ceeb muaj xws li:
• Ua tiav cov organic degradation:Kev ncua sij hawm RAWS RAWS RAWS RAWS RAWS RAWS RAWS LI TUAJ YEEM ROV QAB LOS.
• Ua tib ke nitrogen tshem tawm:Nitricification thiab Denitricification tshwm sim nyob rau hauv cov pa oxygen tsawg, txhim kho ammonia (nh {1}} n) tshem tawm.
• Kev txo qis txo:Cov microbes nkag rau endogenous ua pa nyob rau hauv qis qis chaw thau khoom, txo cov biomass ntau lawm.
Kev ua haujlwm ua haujlwm sludge vs txuas ntxiv Aeration
|
Cov Khoom Sib Piv |
Cov txheej txheem qhib kev ua haujlwm sludge |
Txuas Ntxiv Txheej Txheem |
|
ANERATION DAB |
4 - 8} teev |
12 - 24} teev |
|
Sludge Ntau Lawm |
Siab |
Txo los ntawm ntau tshaj 40% |
|
Denitrortars effect |
Yuav tsum muaj cov txheej txheem ntxiv |
Ib txhij nitrification thiab denitricification |
|
Kev Siv Zog |
Tswj kav |
Siab dua (tab sis tuaj yeem raug txo los ntawm kev ua kom zoo dua) |
|
KHO TIM |
Cov nroj tsuag loj |
Cov nroj tsuag me me - thiab nruab nrab - cov nroj tsuag loj |
Vim li cas thiaj xaiv mus txuas ntxiv?
1. Resilience rau Kev Poob Siab Thauj Khoom
Txuas ntxiv Aeration khaws cov zej zog microbial hauv lub xeev qis, ua rau lawv hloov kho kom haum rau tsis muaj kev ua kom tiav.
2. Cov nqi qis qis qis dua
Sludge tawm los yog txo rau {{{0}}}. 2}}.
3. Lub tswv yim rau cov haujlwm me \/ nruab nrab
Haum rau decentralized systems (muaj peev xwm txhua hnub: 500-5, {2}}} tons) nrog kev ua haujlwm sib txuas thiab ua haujlwm yooj yim.
Kev txiav txim siab rau kev siv
• Kev Ntsuas Cov Khoom:Kev sivNplua-npuas stiffuserslossis cov neeg saib xyuas hluav taws xob saum npoo rau cov khoom siv oxygen.
• sludge thauj & muaj npe:Cia li f \/ m piv ntawm {{0}}}. 03-0.05 Kgmlsssss. Tshaj mlss tsa cov nqi zog lub zog; Cov qauv tsis txaus muaj zog tsis muaj zog floc qauv.
• DUAB oxygen (ua):Txhawb nqa 2-4 mg \/ l nyob rau hauv kev tso tsheb hlau diav Aeration rau microbial xav tau.
• Tiv thaiv kev tiv thaiv loj:Monitor sludge volume index (SVI). If SVI >150 ml \/ g, kho ua, ntxiv coagants (piv txwv li, ferric ntsev), lossis txo qis hnub nyoog.
• Cov khoom noj muaj txiaj ntsig zoo:Tswj lub cev: N: P ≈ 100: 5: 1. Cov uas muaj kev pheej hmoo ntawm cov phom sij lim dej.
Tag
Piv rau cov txheej txheem sludge, txuas ntxiv aberation ua tau zoo dua hauv kev tshem tawm cov organic thiab nitrogen tshem tawm lub sijhawm ntev. ThovTiv Tauj PebYog tias koj qhov project tawm tsam nrog sludge pov tseg lossis tsis sib haum sib pauv, rau aUa kom cov tshuaj kho kom haum.