Cov kab mob hauv cov dej khib nyiab

Cov kab mob hauv cov dej khib nyiab ua haujlwm tshwj xeeb, zoo li peb ua peb txoj haujlwm.

1. Cov kab mob Heterotrophic

Lub luag haujlwm rau decomposing: COD, BOD, organic teeb meem, quav, roj, hmoov txhuv nplej siab, thiab zaub mov pov tseg dej paug. Lawv ncaj qha noj thiab decompose organic pollutants nyob rau hauv dej, tig mus rau carbon dioxide + dej + lawv tus kheej microbial hlwb (sludge).

Lawv yog cov feem ntau ntawm cov activated sludge.

2. Nitrifying kab mob

Ob hom:

• Nitrifying Bacteria: Ammonia nitrogen → Nitrite

• Nitrifying Bacteria: Nitrite → Nitrate

Cov haujlwm tshwj xeeb: tshem tawm ammonia nitrogen, deodorizing, thiab tiv thaiv dej lom.

Cov yam ntxwv: qeeb- loj hlob, muaj kev cuam tshuam rau kev poob siab, xav tau oxygen txaus, thiab tsis tuaj yeem ua kom tsis muaj menyuam.

3. Denitrifying kab mob

Lub luag haujlwm rau: Hloov cov nitrates rau hauv cov pa roj nitrogen thiab khiav tawm.

Ua haujlwm hauv ib puag ncig oxygen- tsis txaus, txo tag nrho nitrogen (TN).

4. Polyphosphate- khaws cov kab mob

Ua haujlwm hom: anaerobic phosphorus tso tawm, aerobic phosphorus uptake. Tshaj phosphorus yog absorbed thiab tawm nrog cov seem sludge, tshwj xeeb tshaj yog txo tag nrho phosphorus.

5. Bacillus

Resistant rau poob siab loads, siab salinity, thiab huab cua kub, nws decomposes roj thiab loj organic molecules; nws yog ib qho tseem ceeb ntawm ntau yam kab mob.

Cov neeg sawv cev: Vorticella, Paramecium, Floodidae, Amoeba

Muaj nuj nqi:

1. Siv cov kab mob dawb thiab nplua nplua, ua kom cov dej ntws tawm kom pom tseeb;

2. Ntau qhov dej ntau- tsim Vorticella nyob rau hauv dej qhia tau hais tias sludge kev ua tau zoo thiab ruaj khov effluent; Kev txo qis hauv Vorticella thiab lawv cov clumping ua ke qhia tias cov dej zoo tshaj cov qauv thiab muaj kev poob siab.

Cov neeg sawv cev: Rotifers, nematodes, tubifex worms

Function: Siv cov sludge hnub nyoog thiab nplua impurities

Qhov tseem ceeb: Ntau rotifers → ruaj khov system ua haujlwm, zoo heev effluent; Muaj ntau nematodes → Aged sludge, ntau dhau sludge hnub nyoog.

Lub luag haujlwm: Decomposes recalcitrant organic teeb meem, cellulose, acidic khib nyiab, thiab roj cov ntsiab lus siab.

Disadvantages: ntau dhau tuaj yeem ua rau sludge bulking thiab tsis zoo.

1. Heterotrophic kab mob: tuav COD, organic teeb meem, thiab roj paug;

2. Nitrifying kab mob: Tshwj xeeb txo cov ammonia nitrogen;

3. Denitrifying kab mob: Tshwj xeeb txo cov nitrogen tag nrho;

4. Polyphosphate- khaws cov kab mob: Tshwj xeeb txo cov phosphorus tag nrho;

5. Protozoa (Vorticella): dej huv, nyob ntawm cov txheej txheem zoo;

6. Fungi: Decompose recalcitrant tshuaj, ntau dhau yuav ua rau bulking.