In-situ ecological restoration method suitable for sewage in sewage discharge outlets of tidal inland river system and system and application

A technology for ecological restoration and sewage outfall, applied in water/sludge/sewage treatment, multi-stage water/sewage treatment, chemical instruments and methods, etc., to achieve the effect of low investment, no impact on water surface landscape, and less land occupation

Active Publication Date: 2015-10-28
PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide an in-situ ecological restoration method suitable for sewage discharge outlets of tidal inland river systems (including rivers and lakes) in view of the deficiencies of existing water pollution control technologies in river courses, and scientifically realize biological Organic combination of contact oxidation technology, high-efficiency biological carrier technology, high-efficiency microbial technology, micro-aeration technology, and biological manipulation technology, through the joint action of physical precipitation, carrier adsorption, microbial degradation, plant absorption and transfer, and aquatic animal digestion and decomposition. Water body

Method used

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  • In-situ ecological restoration method suitable for sewage in sewage discharge outlets of tidal inland river system and system and application
  • In-situ ecological restoration method suitable for sewage in sewage discharge outlets of tidal inland river system and system and application

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Effect test

Embodiment 1

[0044] Provide an in-situ ecological restoration system suitable for tidal inland rivers, as attached figure 1 And attached figure 2 As shown, the system consists of a three-layer purification area and a connection structure: the upper aquatic plant absorption area 1, the middle high-efficiency microbial membrane aerobic reaction area 2, and the bottom facultative anaerobic reaction area 3; the upper end of the connection structure is connected to aquatic plants. The plant absorption area, the lower end is connected to the high-efficiency microbial film aerobic reaction area, and the bottom facultative anaerobic reaction area is suspended from the lower end of the high-efficiency microbial film aerobic reaction area; the aquatic plant absorption area is composed of a buoyancy frame, a floating bed and aquatic plants 6 The buoyancy frame constitutes a closed circuit; the floating bed is fixed on the buoyancy frame for planting aquatic plants; the aerobic reaction zone of the h...

Embodiment 2

[0057] Provide an in-situ ecological restoration system for sewage outfalls suitable for tidal inland water systems (including rivers and lakes), as shown in the attached figure 1 And attached figure 2 As shown, the system consists of a three-layer purification area and a connection structure: the upper aquatic plant absorption area 1, the middle high-efficiency microbial membrane aerobic reaction area 2, and the bottom facultative anaerobic reaction area 3; the upper end of the connection structure is connected to aquatic plants. The plant absorption area, the lower end is connected to the aerobic reaction area, and the bottom facultative anaerobic reaction area is suspended from the lower end of the aerobic reaction area; the aquatic plant absorption area is composed of a buoyancy frame, a floating bed and aquatic plants 6; the buoyancy frame consists of Closed circuit; the floating bed is fixed on the buoyancy frame for planting aquatic plants; the aerobic reaction zone is...

Embodiment 3

[0068] Embodiment 3 application test

[0069] 1. Application water area: a tidal river section in Mingdouyong Zhonghai Culture Xi'an, Chancheng District, Foshan City. The river section has a total length of 155m, a width of 15m, and a water depth of 2.0-2.5m. Both sides of the river have become straight walls. The sewage drains from Shencun are one of the main reasons for the black, smelly and dirty water in the river section. The characteristics of the discharge of the sewage canal are diffusion, scour, etc., and the sewage discharge volume is 200m 3 / d, mainly the daily sewage of local residents, hotel and catering drainage. The sewage at the outlet of the sewage canal is black and smelly, and the aquatic animals are basically extinct. The concentration of sewage after passing through the trash rack is: COD is 70-120mg / L, BOD 5 32.72~61.20mg / L, ammonia nitrogen 17.10~32.55mg / L, total nitrogen 18.40~39.24mg / L, total phosphorus 1.28~2.03mg / L, turbidity 65.1~82.4mg / L, heav...

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Abstract

The invention discloses an in-situ ecological restoration method and system and application suitable for sewage in sewage discharge outlets of a tidal inland river system (comprising rivers, lakes and ponds). The sewage in the sewage discharge outlets is diverted through flexible enclosures, the water surface of a water body in a diversion channel forms an aquatic plant absorption zone, an efficient microbial film aerobic reaction zone and a facultative anaerobic zone from top to bottom, the comprehensive effectiveness of a bio-contact oxidation technology, an efficient biological carrier technology, an efficient microbial technology, a micro aeration technology and a biomanipulation technology is played, and the water body is purified through physical sedimentation, carrier adsorption, micro-biological degradation, plant absorption and transference functions and aquatic animal digestion and decomposition functions. According to the in-situ ecological restoration method and system and application suitable for the sewage in the sewage discharge outlets of the tidal inland river system, the foraging and living space is provided for fish, spiral shells, shrimps and other aquatic animals and plankton, the good micro-ecological environment is provided, a set of healthy water ecosystem is formed, the investment is reduced, the land occupation is little, the water surface landscape is not influenced, the pollutant removal efficiency is high, and the in-situ ecological restoration method and system and application suitable for the sewage in the sewage discharge outlets of the tidal inland river system can be widely applied to purification of the water body of the sewage in the sewage discharge outlets of the tidal rivers, the lakes and the ponds.

Description

technical field [0001] The present invention relates to the technical field of polluted water treatment and ecological environment restoration, and more specifically, relates to an in-situ ecological restoration method suitable for sewage outfalls of tidal inland river systems (including rivers and lakes), and methods for realizing the method systems and applications. Background technique [0002] In many areas of my country, especially in the Pearl River Delta region, urbanization is developing rapidly, but the supporting sewage pipe network facilities are not perfect, especially in the old urban areas and urban-rural fringe areas, where sewage interception is not complete, and untreated sewage is discharged into nearby rivers. The phenomenon of lakes and ponds is still common; the water exchange in the tidal river network area of ​​the Pearl River Delta is not smooth, and the excessively high organic load far exceeds the self-purification ability of the water body, resultin...

Claims

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Application Information

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IPC IPC(8): C02F9/14
Inventor 汪义杰陈文龙杨芳唐红亮黄岳文崔树彬李丽王建国马金龙
Owner PEARL RIVER HYDRAULIC RES INST OF PEARL RIVER WATER RESOURCES COMMISSION
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