Control of MBBR influencing factors:
1.Temperature The biofilm reactor gadget ought to be operated at 15℃～35℃.
2. Dissolved oxygen Dissolved oxygen is an vital element affecting the elimination of natural matter. Especially for the motive of dephosphorization and denitrification, the manipulate of the awareness of dissolved oxygen is specially important. In extraordinary kinds of biofilm reactor processes, the blended answer varieties aerobic, anoxic and anaerobic sections in the bioreactor in a number forms. The DO manipulate vary of every area of the response tank is: the anaerobic part is under 0.2mg/L, the hypoxia area is between 0.2mg/L～0.5mg/L, and the dissolved oxygen awareness in the cardio part need to no longer be much less than 2mg/L.
3. The sludge attention in the cardio area (pool) of MLSS MBBR have to be managed inside 3000mg/L～20000mg/L. Generally speaking, when the sludge attention in the feed liquid increases, due to the fact the sludge attention is too high, the sludge is effortless to savings on the floor of the biofilm to structure a thick sludge layer. However, the attention of sludge in the feed liquid ought to no longer be too low, in any other case the degradation price of pollution will be low, and at the equal time, the adsorption and degradation ability of activated sludge for dissolved natural count will be weakened, which will amplify the attention of dissolved natural depend in the supernatant of the combined liquid. Therefore, it is essential to preserve a average sludge awareness in the feed liquid, too excessive or too low will minimize the water flux.
4. pH cost The pH price of MBBR response tank inlet water have to be 6-9.
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