Dynamic composite sludge membrane treatment process

A treatment process and technology of composite mud, which are applied in water/sludge/sewage treatment, return water treatment, biological treatment devices, etc., can solve the problems of low treatment efficiency, large area and low utilization rate of aeration, etc. Achieve the effect of increasing sludge volume and treatment efficiency, increasing sludge residence time, and simple and convenient operation and maintenance.

Inactive Publication Date: 2017-05-10
丁杰
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Problems solved by technology

[0003] At present, in the water treatment process, the biofilm method is widely used. The traditional activated sludge method has fallen behind and has been gradually replaced. The technology of biofilm method is advanced, but the ratio of putting it into the reac

Method used

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  • Dynamic composite sludge membrane treatment process

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Embodiment Construction

[0012] figure 1 A flow chart of a dynamic composite mud film process is shown. In the figure, in the actual construction, the dynamic composite mud film reaction tank 4 and the sedimentation tank 6 are built, and then the aeration device 3 and the sludge return pump 5 are configured. Prevent packing loss. The volume of the dynamic compound mud film reaction tank can be reduced to half of the volume of the conventional aerobic tank, and 30-40% of multiphase flow-dynamic film microbial carrier filler is added to the dynamic compound mud film reaction tank, which increases after the dynamic compound mud film reaction tank The bottom of the settling tank pumps 100-150% of the sewage flow back to the reaction tank as activated sludge backflow. The MLSS index in the dynamic composite mud membrane reaction tank can reach 15-20g / L; the indicators of the dynamic composite mud membrane sewage treatment process are: nitrification rate (max): >1500 gNH3-N g / m3.d, BOD treatment rate (ma...

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Abstract

The invention provides a dynamic composite sludge membrane treatment process and belongs to the technical field of environmental protection and water treatment. A dynamic composite sludge membrane reaction tank is filled with a multiphase flow-dynamic membrane microbial carrier filler, and meanwhile reflux is conducted on a part of active sludge in a follow-up settling pond, so that co-existence of activated sludge suspending in water and a biological membrane attached to the filler is formed in the dynamic composite sludge membrane reaction tank, aerobic microbes can grow on the activated sludge and also grow on the filler, the activated sludge and the filler perform fluidization motion under an aeration effect to fully perform contact reaction with organic matter in the water of the dynamic composite sludge membrane reaction tank, so that the utilization rate of the dynamic composite sludge membrane reaction tank is greatly improved, the sewage treatment amount under the same scale is doubled, the sludge discharging amount is small, and the sludge yield is only 30% of the yield of a transitional process. By adopting the dynamic composite sludge membrane treatment process, the size, only one half of the size required by the conventional process, of the dynamic composite sludge membrane reaction tank can completely meet the demand in the whole wastewater treatment process.

Description

technical field [0001] The invention relates to a dynamic composite mud film sewage treatment process, which belongs to the technical fields of environmental protection and water treatment. [0002] technical background [0003] At present, in the water treatment process, the biofilm method is widely used. The traditional activated sludge method has fallen behind and has been gradually replaced. The technology of biofilm method is advanced, but the ratio of putting it into the reaction tank is limited, most of it only accounts for about 30%, the remaining space of the tank body is not well utilized, the utilization rate of aeration is low, the power consumption is large, and the treatment efficiency is not high , while occupying a large area. Contents of the invention [0004] In order to overcome the deficiencies in the prior art, the present invention provides a dynamic composite mud membrane treatment process, which should be filled with a certain proportion of multipha...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/12C02F3/10C02F101/30
CPCC02F3/104C02F3/12C02F3/34C02F2003/001C02F2101/30C02F2203/006C02F2301/04Y02W10/10
Inventor 丁杰任南琪吴高峰李旭涛
Owner 丁杰
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