Dynamic membrane sewage direct filtering reactor based on different sewage qualities and operation method
A dynamic membrane and reactor technology, applied in chemical instruments and methods, permeation/dialysis water/sewage treatment, membrane technology, etc., can solve problems such as increased coagulant dosage, affecting process operation and maintenance, and increasing treatment costs , to achieve the effect of saving treatment cost, controlling membrane fouling, low cost and energy consumption
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[0045] Example 1
[0046] Such as figure 1 As shown, the high turbidity sewage (turbidity of 300-400NTU) is pumped into the sewage regulating tank 3 from the water inlet pipe 1, the stirring device 2 is started, the electric valve 4 is started (the electric valve 5 is closed), and the sewage is pumped in through the lift pump 6. Dynamic membrane filtration reactor 10, at this time the aeration device 7 is turned on, adjust the gas flow meter 8 to a low aeration volume (1-2m 3 / m 2 h) The sewage flows through the dynamic membrane module 11 and flows to the outlet pipe 12 under the action of the water level pressure difference (10-10.5cm). The initial produced water returns to the sewage regulating tank 3 due to high turbidity. After 40-50 minutes of circulation, the turbidity Below 10NTU, the flux is at (20-80L / m 2 h). After the dynamic film is formed, adjust the gas flow meter 8 to a high aeration amount (4-6m 3 / m 2 h) Continuously scouring the surface of the membrane module, a...
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[0047] Example 2
[0048] Such as figure 1 As shown, the low turbidity sewage (turbidity of 70NTU) is pumped into the sewage regulating tank 3 from the inlet pipe 1, the stirring device 2 is closed, the electric valve 5 is activated (the electric valve 4 is closed), and the sewage is precipitated (turbidity reaches 350-450NTU) Left and right) is driven into the dynamic membrane filtration reactor 10 by the lift pump 6. At this time, the aeration device 7 is turned on, and the gas flow meter 8 is adjusted to a low aeration volume (1-2m 3 / m 2 h) The sewage flows through the dynamic membrane module 11 and flows to the outlet pipe 12 under the action of the water level pressure difference (10-10.5cm). The initial produced water returns to the sewage adjustment tank 3 due to high turbidity. After 30-40 minutes of circulation, the turbidity Below 10NTU, the flux is at (20-80L / m 2 h). After the dynamic membrane is formed, start the stirring device 2 to ensure that the sewage in the se...
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