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A combined treatment device for urban sewage and rainwater

A combined treatment technology for urban sewage, applied in runoff/rainwater treatment, water/sewage multi-stage treatment, biological water/sewage treatment, etc., can solve problems such as non-point source pollution

Active Publication Date: 2021-05-18
江苏澳洋环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a treatment device that can effectively treat urban sewage and polluted rainwater. It mainly uses a variety of biochemical treatment processes and photocatalytic methods to degrade pollutants. This method is aimed at the current urban sewage, rainwater surface runoff To solve the problem of low treatment level and increasingly severe non-point source pollution, explore an ecological treatment device that can efficiently treat urban sewage and polluted rainwater, realize effective treatment of urban sewage, and achieve sewage purification and safe discharge

Method used

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  • A combined treatment device for urban sewage and rainwater

Examples

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Effect test

Embodiment 1

[0029] In this embodiment, a combined treatment device for urban sewage and rainwater, such as figure 1 As shown, it is composed of collection pipe network, regulating tank, septic tank, A-B method treatment pool, ecological filtration system, and constructed wetland system in series. Urban sewage is collected through the collection pipe network, and the collected urban sewage is passed into The regulating tank is used for water quality and water quantity regulation. The urban sewage COD concentration is 1300mg / L, the ammonia nitrogen concentration is 120mg / L, and the total nitrogen is 150mg / L; Hydrolyze the macromolecular organic matter under certain conditions to reduce the COD of the effluent; pass the septic tank effluent into the A-B method treatment tank, the concentration of microorganisms in the A tank is high, after biosorption, the supernatant enters the B tank for treatment, and is treated by the A-B method Finally, the physical interception and microbial biochemica...

Embodiment 2

[0032] On the basis of Example 1, the photoresponsive soil layer is composed of black soil and titanium-containing slag, wherein the mass fraction of black soil is 80%, the mass fraction of titanium-containing slag is 15%, and the balance is plant fertilizer.

Embodiment 3

[0034] On the basis of Example 1, the photoresponsive soil layer is composed of black soil and titanium-containing slag, wherein the mass fraction of black soil is 85%, the mass fraction of titanium-containing slag is 9%, and the balance is plant fertilizer.

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Abstract

The present invention designs a combined treatment device for urban sewage and rainwater, the structure of which is "pretreatment pool + artificial wetland". According to the characteristics of large differences in pollution loads of urban sewage and rainwater runoff, the system is equipped with multi-point water intake to ensure the reasonable treatment of urban sewage and rainwater. The pre-treatment pool automatically collects highly polluted urban sewage, and adopts the A-B method to treat high-concentration urban sewage, which greatly reduces the concentration of pollutants. A rainwater pretreatment device is installed in front of the wetland bed to remove particulate pollution from rainwater pretreatment precipitation After the material enters the wetland bed for advanced treatment. Among them, the photoresponsive soil layer is set in the ecological filtration treatment, which is composed of black soil and titanium-containing slag; the fifth purification zone is set on the upper layer of the system, which can receive sunlight or ultraviolet light, and the sewage with trace elements enters the The area can work synergistically with the area to significantly improve the water quality entering the constructed wetland and improve the efficiency of water treatment.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a combined treatment device for urban sewage and rainwater. Background technique [0002] With the improvement of people's living standards, there are higher requirements for the quality of life, which brings many problems. Among them, the amount of sewage discharge is increasing year by year, but the treatment capacity is very limited. Discharged into natural water bodies, urban rivers are seriously black and smelly, causing serious pollution to surrounding surface water and groundwater. At the same time, after urbanization, the pollutants produced and discharged by human activities have increased significantly, and the types of pollutants have become more complex and diverse. The pollutants (sediment particles, nitrogen and phosphorus nutrients, heavy metals, organic pollutants, etc.) accumulated on the impervious surface of the urban surface in sunny days form the surface sourc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/28C02F1/32C02F3/005C02F3/28C02F3/32C02F3/34C02F9/00C02F2001/007C02F2103/001C02F2301/08
Inventor 曹翔武涛胡志强王聪王怡
Owner 江苏澳洋环境科技有限公司