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In-situ three-dimensional ecological restoration system and method for slow-flow low-organic nutrient salt eutrophic water body

A technology of ecological restoration and organic nutrition, applied in chemical instruments and methods, water pollutants, biological water/sewage treatment, etc., can solve the problems of difficult practical implementation, complex devices, high equipment costs, etc., and achieve the effect of weakening nitrogen fixation

Active Publication Date: 2020-12-04
HUBEI POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to aim at the present existing methods for controlling low-organic nutrient salinization pollution of slow-flowing water bodies, which are difficult to implement in practice, or have complex devices and equipment costs To deal with higher problems, and provide an in-situ three-dimensional ecological restoration system and restoration method for slow-flowing low-organic nutrient eutrophic water bodies

Method used

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  • In-situ three-dimensional ecological restoration system and method for slow-flow low-organic nutrient salt eutrophic water body
  • In-situ three-dimensional ecological restoration system and method for slow-flow low-organic nutrient salt eutrophic water body
  • In-situ three-dimensional ecological restoration system and method for slow-flow low-organic nutrient salt eutrophic water body

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Embodiment 1

[0069] see Figure 1-Figure 3 , the in-situ three-dimensional ecological restoration system of a kind of slow flow low organic nutrient salt eutrophication water body of the present invention is made up of several three-dimensional ecological restoration groups 1, and each group of three-dimensional ecological restoration groups is composed of several three-dimensional ecological restoration units 2 (the present invention In the schematic diagram of the invention, only four groups of three-dimensional ecological restoration groups are drawn, and each group is provided with four three-dimensional ecological restoration units, which exemplifies the structure of the present invention and does not limit the present invention in any form), and each of the three-dimensional ecological restoration units is From top to bottom, it includes a floating plate 3, a fixed plate 4, a filler floating frame 5, and a filler sinker frame 6. Both the filler float frame 5 and the filler sinker fram...

Embodiment 2

[0076] In this embodiment, the three-dimensional ecological restoration of a small area of ​​low-organic nutrient eutrophic water body in Cihu Lake opposite to the middle gate of Hubei Institute of Technology in Huangshi City in March 2019 was taken as an example to explain the present invention in detail.

[0077] An in-situ three-dimensional ecological restoration method for eutrophic water bodies with slow flow and low organic nutrient salts, comprising the following steps:

[0078] (1) Testing water quality

[0079] Detection of BOD in lake water 5 / TKN ≤ 3, that is, slow-flow low-organic nutrient salt eutrophic water body, and the polluted water area reaches 10,000 square meters, and in-situ three-dimensional ecological restoration of the water body is required;

[0080] (2) Cultivate the fungus on the sunken frame and fill the filler in the sunken box

[0081] Take the digested sludge and water body sludge from the sewage treatment plant in Huangshi City as the strai...

Embodiment 3

[0095] This embodiment takes the three-dimensional ecological restoration of a small area of ​​low-organic nutrient eutrophication pond in the campus of Hubei Institute of Technology in Huangshi City in August 2019 as an example to explain the present invention in detail.

[0096] An in-situ three-dimensional ecological restoration method for eutrophic water bodies with slow flow and low organic nutrient salts, comprising the following steps:

[0097] (1) Testing water quality

[0098] Detection of BOD in lake water 5 / TKN ≤ 3, that is, slow-flow low organic nutrient salt eutrophic water body, and the polluted water area reaches 6,000 square meters, and in-situ three-dimensional ecological restoration of the water body is required;

[0099] (2) Cultivate the fungus on the sunken frame and fill the filler in the sunken box

[0100] Take the digested sludge and water body sludge from the urban sewage treatment plant as the seed source and nutrient source respectively and put...

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Abstract

The invention discloses an in-situ three-dimensional ecological restoration system and method for a slow-flow low-organic nutrient salt eutrophic water body. The three-dimensional ecological restoration system is composed of a plurality of three-dimensional ecological restoration units, each three-dimensional ecological restoration unit comprises a floating plate, a fixed plate, a filler floatingframe and a filler sinking frame, the floating plate floats on the water surface, the fixed plate is 8-12 cm lower than the water surface, the filler floating frame is located in an underwater visiblewater layer, and the filler sinking frame is located above water body bottom mud; a filler floating frame and a filler sinking frame control assembly are arranged on the water bank side, and the control assembly controls the height of the filler floating frame or the filler sinking frame in water through a control rope pulled out by a winding drum assembly fixedly installed on the water bank sideand sequentially through a fixed pulley block fixed to the bank side and a movable pulley block in the center of the bottom of the fixed plate; and the restoration system and the restoration method have the advantages of small influence on the water landscape in the restoration period, quick water restoration effect, no need of adding chemicals, no ecological risk and low operation cost.

Description

technical field [0001] The invention relates to the technical field of ecological restoration of water pollution, in particular to an in-situ three-dimensional ecological restoration system for slow-flow low-organic nutrient eutrophic water bodies and a restoration method thereof. Background technique [0002] Slow-flowing water bodies such as lakes and reservoirs have weak dilution and diffusion capabilities for pollutants, and are prone to localized pollution and eutrophication. Many water body survey data show that low organic nutrient salinization water bodies are mainly manifested as nitrogen in water bodies. High content, abnormal growth of algae, decrease in water transparency, BOD in slow-flowing water 5 / TKN≤3. [0003] At present, there are many measures to prevent and control eutrophication in the lake and reservoir area. Physical methods such as sediment dredging and deep aeration have a large amount of work and high economic costs, and are difficult to apply i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/34C02F101/30
CPCC02F3/325C02F3/327C02F3/34C02F2101/30C02F2103/007
Inventor 张丽莉赵梦迪赵旭德张华瞿丹阳包峥嵘刘诗龙田涛
Owner HUBEI POLYTECHNIC UNIV
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