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Apparatus and method for treating municipal sewage through plug-flow vertical double-cycle technology

A technology of urban sewage and urban domestic sewage, applied in the field of sewage biological treatment, can solve the problems of high ammonia nitrogen content, high energy consumption of aeration, complicated process, etc., and achieve the effect of improving utilization rate, reducing energy consumption and improving efficiency

Active Publication Date: 2017-06-20
CHANGCHUN INST OF TECH
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Problems solved by technology

[0006] In order to achieve the above purpose, the present invention provides a device for treating urban sewage with a push-flow vertical double-circulation process, which solves the problems of complicated process, high ammonia nitrogen content, and high aeration energy consumption in the prior art

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  • Apparatus and method for treating municipal sewage through plug-flow vertical double-cycle technology
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  • Apparatus and method for treating municipal sewage through plug-flow vertical double-cycle technology

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Embodiment Construction

[0033] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] The device of the present invention for the treatment of urban sewage by the push-flow vertical double-circulation process, such as figure 2As shown, it includes an urban domestic sewage tank 1, a push-flow vertical double-circulation aeration tank 2, and a vertical-flow sedimentation tank 3 connected in sequence, and the top outlet of the push-flow vertical double-circulation aeration tank 2 passes through The pipe is connected to the water inlet at t...

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Abstract

The invention relates to an apparatus and a method for treating municipal sewage through a plug-flow vertical double-cycle technology. The apparatus comprises a municipal domestic sewage tank, a plug-flow vertical double-cycle aeration tank and a vertical flow precipitation tank which are sequentially connected, the plug-flow vertical double-cycle aeration tank is connected with a water inlet at the center of the top of the vertical flow precipitation tank through a pipeline, an overflow weir is arranged at one side of the upper portion of the vertical flow precipitation tank, a mud discharge tube is arranged at the bottom of the vertical flow precipitation tank, the municipal domestic sewage tank is connected with a water inlet at the bottom of the plug-flow vertical double-cycle aeration tank, a water feeding pump is arranged between the municipal domestic sewage tank and the water inlet at the bottom of the plug-flow vertical double-cycle aeration tank, and a water feeding tube is arranged at the water inlet at the bottom of the plug-flow vertical double-cycle aeration tank. The apparatus and the method increases the oxygen utilization rate, improves the organic matter removal rate by 5-10%, improves the ammonia nitrogen removal rate by 10-20%, and improves the total nitrogen removal rate by 20-30%.

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment, and in particular relates to a device for treating urban sewage by a push-flow vertical double-cycle process, and also relates to a method for treating urban sewage by a push-flow vertical double-cycle process. Background technique [0002] With the acceleration of social development and urbanization, the discharge of urban sewage is increasing day by day. According to statistics, only in the first quarter of 2014, a total of 3,622 urban sewage treatment plants were built in my country, with a daily sewage treatment capacity of 1.53×10 8 m 3 , The operating load rate reached 79.9%. Urban sewage treatment is a high energy-consuming industry, and the data shows that the average power consumption of urban sewage treatment plants reaches 0.285kWh / m 3 , the total power consumption accounts for 60% of the operating cost of the sewage plant, so reducing the energy consumption of s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
CPCC02F3/302Y02W10/10
Inventor 艾胜书边德军李广柱田曦王帆王司阳许开成
Owner CHANGCHUN INST OF TECH
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