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An urban sewage treatment process with anaerobic technology as the core

A technology of urban sewage and treatment process, applied in the direction of water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of less research and application, and achieve the reduction of direct energy consumption and Operating costs, reducing the concentration of influent suspended solids, and controlling the effects of membrane fouling

Active Publication Date: 2022-01-04
NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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Problems solved by technology

In terms of reactor configuration and hydraulic condition control, the current research and application are less

Method used

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  • An urban sewage treatment process with anaerobic technology as the core
  • An urban sewage treatment process with anaerobic technology as the core
  • An urban sewage treatment process with anaerobic technology as the core

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Embodiment Construction

[0027] The present invention will be further described in detail below in conjunction with the accompanying drawings and through specific embodiments. The following embodiments are only descriptive, not restrictive, and cannot limit the protection scope of the present invention.

[0028] An urban sewage treatment process with anaerobic technology as the core, please refer to Figure 1-3 The characteristics of the process are as follows: first, the biochemical flocculation process unit is used to pre-treat the sewage to remove organic pollutants, suspended particles and phosphorus in the sewage, and to realize the separation of sewage and sludge; then the sewage and sedimentation sludge discharged from the pre-treatment are separated The organic matter is removed through the anaerobic MBR process unit and the sludge anaerobic digestion unit, and the wastewater treated by the anaerobic MBR process unit finally enters the anaerobic ammonium oxidation unit for denitrification, so t...

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Abstract

The invention relates to an urban sewage treatment process with anaerobic technology as the core. The process steps are: S1 uses a biochemical flocculation process unit to pre-treat sewage, remove organic pollutants, suspended particles and phosphorus in sewage, and realize sewage and sewage. Separation of mud; S2 removes organic matter from the sewage and sedimentation sludge discharged from the pre-treatment through the anaerobic MBR process unit and sludge anaerobic digestion unit; S3 waste water treated by the anaerobic MBR process unit finally enters the anaerobic ammonium oxidation unit Denitrification is carried out to make the effluent reach the first-class A standard. This sewage treatment process organically couples anaerobic technologies such as anaerobic MBR technology, anaerobic ammonium oxidation technology and sludge anaerobic digestion technology, realizes the efficient removal of organic matter, suspended solids, nitrogen and phosphorus, and treats urban sewage, effluent Satisfies Class A standard (GB18918‑2002).

Description

technical field [0001] The invention belongs to the technical field of sewage biological treatment and relates to urban sewage treatment technology, in particular to an urban sewage treatment process with anaerobic technology as the core. Background technique [0002] The urban sewage treatment technology based on the aerobic activated sludge method has high pollutant removal efficiency, but at the cost of a large amount of energy consumption and economic investment, the investment and operation costs are high, and a large amount of activated sludge will be produced, releasing a large amount of CO 2 . Therefore, the development and application of sustainable sewage treatment processes with low energy consumption and low carbon emissions has become an important trend in the future. [0003] In this context, in the past 20 years, anaerobic technology has gradually become the mainstream technology explored by many scholars at home and abroad and put into practical application...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F1/56C02F3/2806C02F3/2853C02F3/286C02F3/2866C02F11/04C02F2209/16C02F2209/10C02F2209/08C02F2203/006
Inventor 夏琼琼李鹏峰郑兴灿李家驹熊会斌张文安
Owner NORTH CHINA MUNICIPAL ENG DESIGN & RES INST
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