Sludge-membrane composite sewage treatment system and method

A sewage treatment system and mud film technology, applied in water/sludge/sewage treatment, biological water/sewage treatment, anaerobic digestion treatment, etc., can solve problems such as difficult maintenance, contradiction of sludge age, high construction cost, etc., to achieve Improve the denitrification effect and solve the effect of mud age contradiction

Pending Publication Date: 2021-06-29
SHENZHEN QINGQUAN WATER IND CO LTD
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Problems solved by technology

[0009] Aiming at the problems of high construction cost, difficult maintenance and conflicting sludge age in the treatment of existing underground sewage plants, the present invention provides a mud-film composite sewage treatment system and method

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  • Sludge-membrane composite sewage treatment system and method

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[0029] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0030] In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be directly connected, or indirectly connected through an intermediary, and it can be the internal communication of two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention in spec...

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Abstract

In order to solve the problems of high construction cost, difficulty in maintenance and contradiction of sludge age of the existing underground sewage treatment plant, the invention provides a sludge-membrane composite sewage treatment system which comprises an AO tank, a sludge-membrane composite anoxic tank, a biological aerated filter and an upward flow denitrification deep-bed filter, wherein the AO tank comprises an anaerobic zone and an aerobic zone, the sludge-membrane composite anoxic tank comprises a muddy water sedimentation area and a denitrification nitrogen removal area, effluent of the denitrification nitrogen removal area is guided to the biological aerated filter, part of effluent of the biological aerated filter flows back to the muddy water sedimentation area, and the other part of the effluent of the biological aerated filter is guided to the upward flow denitrification deep-bed filter. Meanwhile, the invention further discloses a sludge-membrane composite sewage treatment method. The sludge-membrane composite sewage treatment system provided by the invention effectively solves the problem of contradiction between sludge age in phosphorus removal and nitrification processes, improves the nitrogen and phosphorus removal efficiency, remarkably reduces the total residence time, and saves the occupied area.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a mud film composite sewage treatment system and method. Background technique [0002] With the rapid development of cities, urban sewage treatment plants in economically developed areas in China are gradually surrounded by surrounding high-rise buildings, and the dilemma of NIMBY is becoming more and more prominent. Therefore, the construction model of underground sewage treatment plants was proposed. [0003] The biggest advantage of the underground sewage treatment plant is to save land resources. In addition, it can effectively isolate secondary pollution such as odor and noise, and build the ground above the sewage plant into an ecological landscape park, which can provide citizens with sports, leisure and entertainment Comfortable spaces such as popular science education. [0004] At present, underground sewage treatment plants mostly adopt fully under...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/02C02F3/10C02F3/28C02F3/30
CPCC02F3/301C02F3/28C02F3/302C02F3/10C02F3/02Y02W10/10
Inventor 叶昌明伍波王小林彭金城赖正泉
Owner SHENZHEN QINGQUAN WATER IND CO LTD
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