Sequencing batch active sludge process for eliminating ammonia nitrogen from sewage
An activated sludge method and sequencing batch technology, applied in water/sludge/sewage treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problems of high cost, not very suitable, not wide applicability, etc. problem, to achieve the effect of low price, low overall cost and high removal rate
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[0025] [Examples 1 to 10]
[0026] Sewage enters a volume of 50m 3 Reaction tank, there is domesticated activated sludge in the reaction tank. Influent flow control is 20m 3 / hr, put the nitrifying bacteria culture accelerator into the reaction tank at the same time of water inflow. The nitrifying bacteria culture promoter is first prepared into a diluent with industrial water, and the weight ratio of the nitrifying bacteria culture promoter and water in the diluted solution is 1:(10-100). Sludge load control is 0.05~0.3kgBOD 5 / kg·MLVSS. The nitrifying bacteria culture accelerator that each embodiment uses is prepared according to the required ratio, and wherein the molasses is 100 parts by weight, and the proportioning of other components is shown in Table 1, and the dosage of the accelerator is shown in Table 2;
[0027] The sewage is nitrified under aerobic conditions. The reaction conditions are as follows: maintain the dissolved oxygen concentration at 2-8 mg / l, tem...
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