Effluent treatment method for membrane separation activated sludge, effluent treatment apparatus, and effluent treatment system management program
A technology of activated sludge method and wastewater treatment, applied in water/sludge/sewage treatment, water/sewage treatment, biological water/sewage treatment, etc., can solve the problems of reducing membrane filtration pressure and rising
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Embodiment 1
[0214] In fiber manufacturing wastewater treatment facilities, the setting Figure 1A ~ Figure 1C The membrane separation activated sludge device shown (width 0.1m, depth 0.4m, height 0.8m, tank volume 0.03m 3 ), 6 flat membrane elements (width 0.15m×height 0.15m, effective membrane area 0.029m 2 , made of polyvinylidene fluoride), under filter conditions (filter flux 0.5m 3 / m 2 / day, air supply 27L / min / component) to start filtration operation.
[0215] Regarding the biological treatment conditions, the BOD / MLSS load is set to 0.1kgBOD / kgMLSS·day, the activated sludge capacity is 30L, and the activated sludge amount management standard range is 30000±3000mg / tank.
[0216] During the running period, at a frequency of 1 time / day, with figure 2 In the shown manner, after using a microscope as an optical unit 41 and a video camera 43 to photograph the activated sludge collected from the membrane separation activated sludge tank 3, the captured image is processed by an image ...
Embodiment 2
[0224] In the fiber manufacturing wastewater treatment facility, two units are installed side by side Figure 1A ~ Figure 1C The membrane separation activated sludge device shown (width 2m, depth 1m, height 3m, tank volume 6m 3 ), 100 flat membrane elements (width 0.5m×height 1.4m, effective membrane area 1.4m 2 , made of polyvinylidene fluoride), under filter conditions (filter flux 0.4m 3 / m 2 / day, air supply 27L / min / component) to start filtration operation.
[0225] Regarding the biological treatment conditions, the BOD / MLSS load is set to 0.1kg / kg·day, and the activated sludge capacity is 3m 3 , The benchmark range of activated sludge volume management is 30±3kg / tank.
[0226] For one of the two membrane separation activated sludge units, during the operation period, at a frequency of one time per day, with figure 2 After the shown mode utilizes optical unit 41 and video camera 43 to photograph the activated sludge collected from membrane separation activated sludge...
Embodiment 3
[0262] In the same membrane separation activated sludge plant as Comparative Example 3, after figure 2 Under the form shown, after utilizing optical unit 41 and video camera 43 to photograph the activated sludge collected from membrane separation activated sludge tank 3, the captured image is processed by image processing unit 42, and the display and preset The judgment result obtained by comparing the management reference range and the management program that displays a warning when the judgment result deviates from the management reference range are managed.
[0263] The activated sludge was collected and observed from the position farthest from the air pump of each membrane module on the A-system side and the B-system side of the activated sludge tank at a frequency of 1 time / day.
[0264] When the operation exceeds 2 months, in the sludge around the A system, the area ratio of the flocculation area of (viii) a certain color or below a certain gray level to the water pha...
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Abstract
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