Ecological restoration method for black and odorous water

A technology for ecological restoration and black and odorous water bodies, applied in chemical instruments and methods, water aeration, water pollutants, etc., can solve the problems of unfavorable water ecosystem healthy development, failure to achieve root cause, poor governance effect, etc., to enrich the food chain , Improve the food chain and avoid secondary pollution

Inactive Publication Date: 2018-12-18
浙江泰诚环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Due to the complexity of black and odorous water bodies, only a single method and technology is used for treatment, and the treatment effect is poor. Often, the tr

Method used

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  • Ecological restoration method for black and odorous water
  • Ecological restoration method for black and odorous water
  • Ecological restoration method for black and odorous water

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] Embodiment 1: the ecological restoration method of black and odorous water body, comprises the following steps:

[0064] Step 1, salvaging the floating objects in the water body;

[0065] Step 2, sewage interception: effectively intercept the sewage flowing into the water body to the urban sewage pipe network, and finally discharge it into the urban sewage plant, so as to reduce the pollution of sewage to the water body from the source. When a small amount of sewage is difficult to intercept in a short time, such as figure 1 As shown, the sewage is introduced into the pretreatment device for treatment and then discharged to the water body. The pretreatment device includes a funnel-shaped water storage tank 1. The water outlet of the water storage tank 1 is provided with a packing chamber 2 connected with it. The water storage tank 1 and the packing chamber A valve 3 is set between the 2, and the stuffing chamber 2 is filled with a pebble layer 4, a coarse sand layer 5, ...

Embodiment 2

[0072] Embodiment 2: the ecological restoration method of black and odorous water body, the difference with embodiment 1 is that the modification of the activated carbon in the modified activated carbon layer 7 comprises the following steps:

[0073] (1) Stir and impregnate activated carbon Ⅰ with 1mol / L hydrochloric acid solution for 3 hours. Activated carbon Ⅰ is commercially available 40-mesh wood activated carbon, filter with suction, wash with deionized water, and dry to obtain activated carbon Ⅱ. Activated carbon Ⅱ is oxidized with 1mol / L hydrogen Sodium solution was stirred and impregnated for 3 hours, filtered with suction, washed with deionized water, and dried to obtain activated carbon III, which was set aside;

[0074] (2) Add activated carbon III to 0.02mol / L potassium ferrate solution, then add 1mol / L hydrochloric acid solution to stir, filter with suction, wash with deionized water, and dry to obtain activated carbon IV;

[0075] (3) Add activated carbon IV into...

Embodiment 3

[0079] Embodiment 3: the ecological restoration method of black and odorous water body, the difference from embodiment 1 is that when the rainwater pipe and the sewage pipe in the municipal drainage and sewage pipe network are shared, as figure 2 As shown, a valve plate 10 is set at the drain end of the main drainage pipe 9, an overflow port 11 is provided between the top of the valve plate 10 and the inner wall of the main drainage pipe 9, and the bottom of the main drainage pipe 9 is connected with a sewage discharge pipe 12 connected to the sewage treatment station .

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Abstract

The invention discloses an ecological restoration method for black and odorous water, and relates to the field of ecological restoration of water in order to solve the technical problems that inadaptation to different black and odorous waters, short restoration effect keeping time and easy pollution rebounding in the prior art. The method comprises the following steps: 1, salvaging floating matters in water; 2, intercepting dirt; 3, rebuilding a water ecosystem: adding protozoa and native plants, then planting aquatic plants, and adding spiral shells, fish and shrimps to promote the restoration and balance of the water ecosystem and restore self-purification capability; 4, maintaining the water ecosystem: timely cleaning away water garbage and decaying plants, and regularly harvesting planted plants; 5, regulating the environment surrounding the water body: greening or protecting the waterfront of the water according to the construction situation around the water; and 6, carrying out inspection and maintenance. The method can adapt to different black and odorous waters, makes the water stable for a long time after being restored, and achieves three-dimensional ecological restoration of the black and odorous water.

Description

technical field [0001] The invention relates to the field of ecological restoration of water bodies, more specifically, it relates to an ecological restoration method for black and odorous water bodies. Background technique [0002] With the rapid development of regional economy and the acceleration of urbanization, the problems of water quality pollution and ecological degradation of urban rivers have become more and more prominent. The large input of oxygen-consuming organic pollutants and nitrogen and phosphorus nutrients has led to the deterioration of urban river water quality, and even seasonal and perennial water black and odor phenomena. [0003] The remediation technologies for polluted water bodies mainly include sewage interception technology, sediment dredging technology, artificial aeration technology, artificial shore vegetation technology, water diversion flushing technology and bioremediation technology, etc. However, sewage interception, sediment dredging, a...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/001C02F1/283C02F3/327C02F3/34C02F7/00C02F9/00C02F2101/101C02F2101/103C02F2103/007C02F2203/006C02F2209/005C02F2209/22C02F2301/08C02F2303/14C02F2305/10
Inventor 万林江巧文冯一希刘艳华常玉华胡庆年潘韩智何华燕王翔黄旭陶国建陈兵许梦婷
Owner 浙江泰诚环境科技有限公司
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