Method for intensively collecting, treating and recycling construction wastewater in dam area of hydropower engineering in high mountain and valley area

A technology for hydropower engineering and waste water, which is applied in water/sewage treatment, neutralized water/sewage treatment, water/sewage treatment equipment, etc. It can solve the problems of difficult collection and treatment of construction waste water, river water pollution, etc., and achieve the solution of waste water treatment cost-prohibitive effect

Pending Publication Date: 2021-02-23
国家能源集团金沙江旭龙水电有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a method for centralized collection, treatment and reuse of construction wastewater in hydropower project dam areas in alpine and canyon areas, through centralized collection, treatment and reuse of construction wastewater in hydropower project dam areas, to achieve zero discharge of wastewater during construction; to solve the problem of previous dam construction The waste water is difficult to collect and treat, and it is scattered into the river, which leads to the pollution of the river water environment

Method used

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  • Method for intensively collecting, treating and recycling construction wastewater in dam area of hydropower engineering in high mountain and valley area
  • Method for intensively collecting, treating and recycling construction wastewater in dam area of hydropower engineering in high mountain and valley area
  • Method for intensively collecting, treating and recycling construction wastewater in dam area of hydropower engineering in high mountain and valley area

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Embodiment 1

[0069] Embodiment 1: The present invention is respectively applied to the centralized collection, treatment and reuse of construction wastewater during the construction period of a diversion tunnel of a hydropower project;

[0070] Such as figure 1 As shown, this embodiment is a method for centralized collection, treatment and reuse of construction wastewater in a hydropower project dam area, which specifically includes the following steps:

[0071] During the construction period of the diversion tunnel of the hydropower project, according to the segmented construction plan of the diversion tunnel, first set up in the construction section of the diversion tunnel 1# figure 1 The included facilities include mobile water collection tank 15, mobile sedimentation tank 16 and mobile clean water tank 17, and mobile water collection tank 15, mobile sedimentation tank 16 and mobile clean water tank 17 are connected by steel plate welding; #The size of the tunnel flow section in the co...

Embodiment 2

[0075] Embodiment 2: The present invention is respectively applied to the centralized collection, treatment and reuse of construction wastewater in the upstream cofferdam and downstream cofferdam construction of a certain hydropower project;

[0076] Such as figure 2 , image 3 As shown, this embodiment is a method for centralized collection, treatment and reuse of construction wastewater in a hydropower project dam area, which specifically includes the following steps:

[0077] During the construction of the upstream cofferdam and the downstream cofferdam of the hydropower project, a sump 9, a sedimentation tank 10, and a clear water pool 11 are set in the area between the highest point and the lowest point within the downstream foundation pit, and the elevation of the downstream foundation pit 5 is 2100 ~2115m, the water collection tank 9, the sedimentation tank 10, and the clean water tank 11 are set in the downstream foundation pit 5 at an elevation of about 2105~2110m; ...

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Abstract

The invention discloses a method for intensively collecting, treating and recycling construction wastewater in a dam area of hydropower engineering in a high mountain and valley area. According to theconstruction sequence of hydropower engineering, firstly, centralized collection and treatment of diversion tunnel construction wastewater are carried out in a diversion tunnel; and then concrete flushing water, concrete curing wastewater, grouting wastewater, diversion tunnel construction wastewater, tailrace tunnel construction wastewater and underground powerhouse construction wastewater in dam main body engineering construction are synchronously collected and treated in the upstream foundation pit and the downstream foundation pit in a centralized mode. The method solves the problem thatin the prior art, construction wastewater in the dam area of the alpine valley area is difficult to collect and treat in a centralized mode and is scattered into a river to cause river water environment pollution; the method has the advantages that the problem that no sufficient sewage collecting and treating system is arranged in the alpine and valley area is solved, and meanwhile centralized collection, treatment and recycling of construction wastewater in the dam area of hydropower engineering and zero emission of wastewater in the construction period are achieved.

Description

technical field [0001] The invention relates to the field of construction wastewater treatment, and more specifically relates to a method for centralized collection, treatment and reuse of construction wastewater in hydroelectric project dam areas in alpine and canyon areas. Background technique [0002] Wastewater during the construction period of hydropower projects includes production wastewater from sand and stone processing systems, flushing wastewater from concrete mixing systems, oily wastewater from automobiles, domestic sewage from construction camps, etc., as well as concrete flushing wastewater, concrete curing wastewater, cavern wastewater, grouting wastewater, etc. in the dam area. Production wastewater from sand and gravel processing systems, flushing wastewater from concrete mixing systems, oily wastewater from automobiles, and domestic sewage from construction camps are relatively easy to collect and treat in a centralized manner, but wastewater from concrete ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04E03F5/10E02D19/10
CPCC02F1/66C02F1/5281C02F1/5245C02F1/56E03F5/101E02D19/10C02F2201/002C02F2201/008
Inventor 李方平翟红娟王孟刘扬扬姚福海吴楠李斐阮娅贺松彭才喜陈云鹏王晓雪
Owner 国家能源集团金沙江旭龙水电有限公司
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