Industrial wastewater treatment method using bladder-type anaerobic pond

A technology of industrial sewage and treatment methods, which is applied in the direction of aerobic and anaerobic process treatment, can solve the problems of large manpower and building materials, small single tank volume, and cost, and achieve the reduction of excess sludge, simplified system process, and high efficiency high effect

CN101381160AActive Publication Date: 2009-03-11哈尔滨北方环保工程有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2009-03-11

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Abstract

The present invention discloses a method for disposing industrial sewage in a bag type anaerobic pool, and relates to a method for disposing industrial sewage. The method overcomes the drawback that the anaerobic pool used in the prior method costs a lot of labor and constructional material and is small in single pool volume by changing the structure of the anaerobic pool. The method comprises the following steps of a. pretreated sewage is discharged into the bag type anaerobic pool; after jet mixing, the sewage contacts and absorbs a returned sludge at an end of the bag type anaerobic pool for anaerobic reaction; the bag type anaerobic pool is a water bag made from a high strength HDPE plastic film, and acidogenic bacterium and methanogenic bacterium are accreted inside the water bag; b. an aerobic reaction of the sewage treated by the step a is carried out to further remove the surplus organic substance in the water, and gas is aerated into a biological contact oxidation pond by a blower; c. the sewage processed by the step b enters an inclined tube settling pond so as to separate sludge and water; d. the sewage processed by the step c is discharged.
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Description

technical field

[0001] The invention relates to a method for treating industrial sewage. Background technique

[0002] With the continuous development of industrial technology and the national requirements for energy conservation and emission reduction, the concentration of industrial sewage is increasing, and the treatment of industrial sewage has received more and more attention from the society. Anaerobic + aerobic process is the main method to treat high-concentration organic industrial wastewater. When the traditional anaerobic process treats sewage, because the construction of a concrete anaerobic tank consumes a lot of labor and building materials and the volume of a single tank is small, the huge investment is the most troublesome thing for investors. At the same time, the traditional anaerobic process also has disadvantages such as poor system stability, troublesome sludge treatment, troublesome biogas storage, and long construction period. Contents of the invent...

Examples

specific Embodiment approach 1

[0017] Specific implementation mode one: the following combination figure 1 and figure 2 This embodiment will be specifically described. This embodiment is realized through the following steps: a. Discharge the pretreated sewage into the capsule anaerobic tank, and the sewage is fully contacted and adsorbed with the return sludge from the end of the capsule anaerobic tank through jet agitation, and the anaerobic tank is anaerobic. Oxygen reaction; the capsule anaerobic tank is a water capsule made of high-strength HDPE plastic film, and acid-producing bacteria and methanogenic bacteria are symbiotic in the water capsule; b, the sewage treated in step a carries out aerobic reaction, For example, enter the biological contact oxidation tank, further remove the remaining organic matter in the water, and use a fan to aerate the biological contact oxidation tank; c, the sewage treated in step b enters the inclined tube sedimentation tank, and separates the mud and water; d, passes...

specific Embodiment approach 3

[0022] Specific implementation method three: high-efficiency jet hydraulic agitation is carried out in the first third of the capsule anaerobic tank in step a, and a sludge return device is installed in the second third of the part to evenly return the settled sludge to the front section Re-engage the response. Others are the same as the first embodiment.

specific Embodiment approach 4

[0023] Specific embodiment four: In this embodiment, the biological contact oxidation tank in step b adopts blast aeration. Others are the same as the first embodiment.