Rural sewage anaerobic resource utilization system and method
A technology for rural sewage and resource utilization, which is applied in anaerobic digestion treatment, chemical instruments and methods, biological water/sewage treatment, etc. and other problems, to achieve the effect of stable operation and processing effect, low cost and simple structure
Active Publication Date: 2021-03-23
BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE
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Problems solved by technology
Traditional anaerobic folded-plate reactors have problems such as long start-up time, difficulty in two-phase separation, and unstable treatment effect when treating rural sewage; anaerobic biofilters have fillers that are easy to block when treating rural sewage, low treatment efficiency, and ineffective Suitable for treating high organic load sewage and other problems
Although the anaerobic membrane bioreactor can achieve a better water effluent effect, the problem of membrane fouling still restricts its development and promotion.
Therefore, it is difficult for the traditional anaerobic process to treat rural sewage to achieve the purpose of resource utilization of effluent.
Method used
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[0022] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0023] like figure 1 As shown, the present invention provides a rural sewage anaerobic resource utilization system, comprising an anaerobic membrane bioreaction area, on both sides of the anaerobic membrane bioreaction area, there are anaerobic membrane bioreaction area communicating with the anaerobic membrane bioreaction area Oxygen hydrolysis reaction zone.
[0024] The anaerobic hydrolysis reaction zone is equipped with 8 identical zigzag folded plates 5 in the vertical direction, and four folded plates 5 are arranged on each side of the anaerobic membrane bioreaction area as the center, and the two folded plates 5 on each side are parallel to each other. And equidistant arrangement, so that the water flow will be disturbed between the flaps 5, which is conducive to full contact between sewage and anaerobic sludge. A two-phase separation filler 22 is ar...
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The invention discloses a rural sewage anaerobic resource utilization system and method. The system comprises an anaerobic membrane biological reaction zone, anaerobic hydrolysis reaction zones communicating with the anaerobic membrane biological reaction zone are arranged on the two sides of the anaerobic membrane biological reaction zone, and the interior of each anaerobic hydrolysis reaction zone is divided into at least two up-flow reaction compartments through folded plates; and each up-flow reaction compartment is provided with a two-phase separation filler along the transverse direction, a water distribution system and an aeration system are arranged below the anaerobic membrane biological reaction zone and the anaerobic hydrolysis reaction zone, and a sludge discharge port is formed below the aeration system. The method comprises the following steps: distributing sewage by the water distribution system, and enabling the sewage to flow into the anaerobic hydrolysis reaction zonefrom bottom to top between folded plates for primary treatment; and enabling sewage passing through the anaerobic hydrolysis reaction zone to flow into the anaerobic membrane biological reaction zonefor further treatment, discharging sludge from a sludge discharge port, and discharging purified water. The system is simple in structure, stable in operation, efficient in reaction, low in energy consumption, low in cost, easy to start, simple in operation and stable in operation treatment effect.
Description
technical field [0001] The invention relates to a sewage treatment system and method, in particular to a rural sewage anaerobic resource utilization system and method. Background technique [0002] Anaerobic sewage treatment process has a good application prospect in the recovery and utilization of energy resources. BOD in sewage 5 Through anaerobic treatment, it can be converted into biogas and other energy gases. The organic nitrogen in the sewage is converted into ammonia nitrogen through anaerobic treatment. The anaerobic treated sewage contains a large amount of nitrogen and phosphorus elements that can be used for crop growth. If the heavy metals in it are removed In the case of pollution indicators such as ions and pathogenic microorganisms, the effluent can be recycled. [0003] The key to efficient operation of anaerobic wastewater treatment process is the interception and enrichment of anaerobic microorganisms. Because anaerobic microorganisms proliferate slowly,...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C02F3/28
CPCC02F3/2853C02F3/286C02F3/284Y02E50/30
Inventor 刘建伟冯文韬陈欣玥臧娜娜
Owner BEIJING UNIVERSITY OF CIVIL ENGINEERING AND ARCHITECTURE