Pollution control method for urban suburb eutrophication water body

A technology for eutrophication and pollution control, applied in chemical instruments and methods, multi-stage water/sewage treatment, water/sludge/sewage treatment, etc. Pollution and other problems, to avoid incomplete operation or continuous operation, enhance biodegradability and adsorption, and promote metabolism

Inactive Publication Date: 2013-12-18
KUNMING UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The above treatment methods, technologies and methods can play a certain role in the control of water eutrophication, but there are also some problems. (1) The unsustainability of the treatment method: taking the chemical method as an example, it needs to use a large amount of chemical agents , the cost is high, it is easy to cause secondary pollution, and it is an end-of-line treatment that cannot solve the root of the problem; (2) Unsustainable implementation: Taking physical methods as an example, methods such as manual dredging and sewage interception have the characteristics of stages. It will change with the change of policy; (3) The operation status of the sewage treatment plant is not good: due to the unclear rights and responsibilities, and the supervision cannot be 100% accurate and comprehensive, there may be loopholes in the operation of the sewage treatment plant

Method used

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  • Pollution control method for urban suburb eutrophication water body
  • Pollution control method for urban suburb eutrophication water body
  • Pollution control method for urban suburb eutrophication water body

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1: The pollution control method of eutrophic water body in Dianchi Lake, the specific content is as follows:

[0037] 1. Overview

[0038] (1) Dianchi Lake: Under the normal high water level (1887.4m) of Dianchi Lake, the water surface area of ​​Dianchi Lake is 309.6km 2 , with a total storage capacity of 1.56 billion m 3 , which is divided into north and south by an artificial dyke (sea ridge) in the north, the north is called Caohai, and the south is called Waihai. Caohai covers an area of ​​7.3km 2 (excluding the two separated water bodies: Dongfeng Dam and Laogan Fish Pond), accounting for 3.5% of the area of ​​Dianchi Lake, with a water storage capacity of 22.58 million m 3 , 1.5% of the total water storage capacity of Dianchi Lake. The outlet of Caohai Sea is an artificial tunnel—Xiyuan Tunnel, with a water change cycle of about 3.5 months; the outlet of the outer sea water is the Haikou Zhongtan Sluice, which is discharged into Tanglang River, and...

Embodiment 2

[0066] Embodiment 2: the pollution control method of eutrophic water body in the suburbs of the city, the specific content is as follows:

[0067] 1. Overview

[0068] Accounting for large and medium-sized cities: population of 500,000 to 1,000,000, per capita water quota of 200L / d. The water supply is 0.365-073.0 million cubic meters per year. Assuming that the amount of replenishment water is compared with the amount of water intake, the quality of replenishment water is divided into categories I, II, and III. The quality of polluted water used is category, with a water storage capacity of 300 million cubic meters and a water change cycle of 6 years.

[0069]2. The pollution control method of this eutrophic water body (influent water quality category IV), with a design scale of 100,000 m 3 / d (to meet the water consumption of 500,000 people), the specific operation is as follows:

[0070] (1) At normal temperature, the eutrophic water is input from the upper part of th...

Embodiment 3

[0088] Embodiment 3: the pollution control method of the eutrophic water body in the suburbs of the city, the specific contents are as follows:

[0089] 1. Overview

[0090] Calculated with a medium-sized city: the population is 500,000, and the per capita water quota is 200L / d. Assuming that the amount of replenishment water is compared with the amount of water intake, the quality of replenishment water is divided into categories I, II, and III. The quality of polluted water used is category, with a water storage capacity of 300 million cubic meters and a water change cycle of 6 years.

[0091] 2. The pollution control method of this eutrophic water body (influent water quality category IV), with a design scale of 100,000 m 3 / d (to meet the water consumption of 500,000 people), the specific operation is as follows

[0092] (1) At normal temperature, the Dianchi Lake water is input from the upper part of the biological filter evenly through the filter material layer, and...

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Abstract

The invention discloses a pollution control method for an urban suburb eutrophication water body. According to the method, the eutrophication water body is used as a life drinking water source, in addition, the original water source is used as supplementing water of the eutrophication water body, the original water plant water purification process is improved so that the eutrophication water body is used as urban drinking water after being purified, and in addition, the pollution government cost is put into practice onto a pollution discharge main body or customers in a water supply charge form of a water plant. The method has the advantages that the traditional water pollution control concept is changed, the cyclic utilization of water resources is realized through the organic coupling of the pollution discharge main body and the responsibility main body of the water pollution government, meanwhile, the water change period of the eutrophication water body can be shortened by the method, in addition, the water quality of the supplemented water is good, the concentration dilution speed of nutrients in the pollution water body is favorably accelerated, and the pollution control of the urban suburb eutrophication water body is finally realized.

Description

technical field [0001] The invention relates to a pollution control method for eutrophic water bodies in the suburbs of cities, and belongs to the field of restoration of polluted water bodies in the suburbs of cities. Background technique [0002] Eutrophication of water body refers to that under the influence of human activities, a large amount of nutrients such as nitrogen and phosphorus required by organisms enter slow-flowing water bodies such as lakes, estuaries, and bays, causing algae and other plankton to multiply rapidly, and the dissolved oxygen in water bodies decreases. Deterioration of water quality, massive death of fish and other organisms. Since the eutrophication of water bodies is caused by the nutrients discharged by human activities, the water bodies in the suburbs of cities, as the receiving water bodies of human activities, are more prone to eutrophication and the degree is particularly serious. At present, water eutrophication has become one of the m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 宁平瞿广飞吴淼淼任治忠赵健蓉
Owner KUNMING UNIV OF SCI & TECH
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