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Urban sewage treatment system

A technology for urban sewage and treatment systems, applied in the fields of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the problems of low removal rate and high cost, increase utilization, reduce cost effect

Active Publication Date: 2016-03-02
SICHUAN CHANGHE ENVIRONMENTAL PROTECTION ENG
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, this treatment method has a stable effect on dyeing, but the cost is high, and the removal rate is low. The removal rate of BOD5 is only 90%, and the removal rate of COD is only 80%.

Method used

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  • Urban sewage treatment system
  • Urban sewage treatment system
  • Urban sewage treatment system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] like figure 1 As shown, the urban sewage treatment system collects domestic sewage and industrial sewage separately, and the industrial sewage collects food industrial sewage, industrial inorganic sewage and industrial organic sewage separately; the domestic sewage and industrial sewage collected separately go through the domestic sewage pretreatment line and industrial wastewater pretreatment routes; food industrial wastewater is pretreated through domestic wastewater pretreatment routes; industrial inorganic wastewater and industrial organic wastewater are pretreated through industrial inorganic wastewater pretreatment routes and industrial organic wastewater pretreatment routes respectively; The above domestic sewage pretreatment route and industrial sewage pretreatment route intersect in the general treatment route, which includes sequentially connected anaerobic ponds, aerobic ponds, wetlands, detection ponds and ultraviolet sterilization ponds.

[0066] The domest...

Embodiment 2

[0105] like figure 1 As shown, the urban sewage treatment system collects domestic sewage and industrial sewage separately, and the industrial sewage collects food industrial sewage, industrial inorganic sewage and industrial organic sewage separately; the domestic sewage and industrial sewage collected separately go through the domestic sewage pretreatment line and industrial wastewater pretreatment routes; food industrial wastewater is pretreated through domestic wastewater pretreatment routes; industrial inorganic wastewater and industrial organic wastewater are pretreated through industrial inorganic wastewater pretreatment routes and industrial organic wastewater pretreatment routes respectively; The above domestic sewage pretreatment route and industrial sewage pretreatment route intersect in the general treatment route, which includes sequentially connected anaerobic ponds, aerobic ponds, wetlands, detection ponds and ultraviolet sterilization ponds.

[0106] The domest...

Embodiment 3

[0121] like figure 1 As shown, the urban sewage treatment system collects domestic sewage and industrial sewage separately, and the industrial sewage collects food industrial sewage, industrial inorganic sewage and industrial organic sewage separately; the domestic sewage and industrial sewage collected separately go through the domestic sewage pretreatment line and industrial wastewater pretreatment routes; food industrial wastewater is pretreated through domestic wastewater pretreatment routes; industrial inorganic wastewater and industrial organic wastewater are pretreated through industrial inorganic wastewater pretreatment routes and industrial organic wastewater pretreatment routes respectively; The above domestic sewage pretreatment route and industrial sewage pretreatment route intersect in the general treatment route, which includes sequentially connected anaerobic ponds, aerobic ponds, wetlands, detection ponds and ultraviolet sterilization ponds.

[0122] The domest...

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Abstract

The invention discloses an urban sewage treatment system which comprises a domestic sewage pretreatment line and an industrial sewage pretreatment line. The domestic sewage pretreatment line and the industrial sewage pretreatment line intersect with a total treatment line. The domestic sewage pretreatment line comprises a first filtering basin, a first sedimentation basin, a second filtering basin and a second sedimentation basin which are connected in sequence. The industrial sewage pretreatment line comprises a food industrial sewage pretreatment line, an inorganic sewage pretreatment line and an organic pretreatment line which are connected in parallel. The food industrial sewage pretreatment line and the domestic sewage pretreatment line intersect with the first filtering basin. The inorganic sewage pretreatment line comprises a first inorganic filtering basin, an acid-base basin, an oxidation basin, an inorganic sedimentation basin, a second inorganic filtering basin and a membrane filtering basin which are connected in sequence. The industrial organic sewage pretreatment line comprises an organic filtering basin and an extraction basin which are connected in sequence. The industrial organic sewage pretreatment line and the industrial inorganic pretreatment line intersect with the membrane filtering basin.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to an urban sewage treatment system. Background technique [0002] In recent years, the economic development of Chinese cities has been relatively fast, and the amount of sewage generated by production and living in cities has also gradually increased. Compared with foreign developed countries, the urban sewage treatment rate in my country is not high, and the process still needs to be improved. , the management is still relatively backward, and there is only one sewage treatment plant for every 1.5 million people on average, and there are still many problems such as the effective investment utilization rate of sewage treatment plant construction and the low rate of treated water. Compared with developed countries, my country's sewage treatment facilities are still very backward. [0003] The process of sewage treatment in the prior art is comparatively simple, mainly adopts two-stage ac...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14
Inventor 张荣斌
Owner SICHUAN CHANGHE ENVIRONMENTAL PROTECTION ENG
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