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An eutrophic water restoration method based on ecological isolation-fish restoration-substrate phosphorus-locking-plant grabbing

An ecological isolation and eutrophication technology, applied in chemical instruments and methods, biological water/sewage treatment, polluted waterway/lake/pond/river treatment, etc., to achieve low release, simple structure of ecological treatment facilities, and low cost The effect of low investment and operating costs

Active Publication Date: 2022-01-07
JINAN UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the defects and deficiencies of the above-mentioned prior art, and provide a method for restoring eutrophic water bodies based on ecological isolation-fish repair-bottom phosphorus locking-plant grabbing, which is mainly aimed at ponds, Excessive concentration of nutrient salts in still water bodies such as lakes and reservoirs can cause endogenous release, algae enrichment, and water quality deterioration

Method used

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  • An eutrophic water restoration method based on ecological isolation-fish restoration-substrate phosphorus-locking-plant grabbing
  • An eutrophic water restoration method based on ecological isolation-fish restoration-substrate phosphorus-locking-plant grabbing
  • An eutrophic water restoration method based on ecological isolation-fish restoration-substrate phosphorus-locking-plant grabbing

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Experimental program
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Embodiment 1

[0037] The Bainikeng Bay at the end of Yantian Reservoir was selected as the ecological restoration demonstration area ( figure 2 ), the total area of ​​the demonstration area is about 10200m 2 (Length 170 meters, width 60 meters), the average depth of the water body is 1.7m, and the demonstration area is partitioned, including three test areas, of which the area of ​​I area is 1200m 2 , Area II area 6000m 2 , Area III area 3000m 2 . according to figure 1 The steps shown are for water restoration.

[0038] 1. Repair method

[0039] 1. Ecological isolation of water bodies in algae-rich areas

[0040] In order to ensure that no external pollution enters the restoration area, PVC material is firstly used to enclose it, and it is fixed in the mode of "sandbag + piling + steel rope" to separate it from the water body in the non-demonstration area. On-site operations such as image 3 As shown, the specific steps are:

[0041](1) Making enclosures: Choose PVC enclosures wit...

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Abstract

The invention discloses a eutrophic water restoration method based on ecological isolation-fish restoration-substrate phosphorus locking-plant grabbing. First, carry out ecological isolation on water bodies with high nutrient salt content, algae-enriched areas, or polluted water areas, then remove indigenous fish that can disturb the water body, then disinfect the water body in the enclosure, and spray phosphorus-locking agents to ensure the transparency of the water body 1. Reduce the endogenous release of phosphate in the substrate, rebuild the aquatic ecosystem with the aquatic plant community as the core, and rely on the strong absorption capacity of submerged, emergent, and floating plants to reduce the nutrient content in eutrophic water bodies , control algae and suspended particulate matter levels, and prevent "algal bloom" outbreaks. The method of the present invention has extremely high stability after restoration, can maintain high transparency of water body for a long time, aquatic plants grow vigorously, and endogenous nutrient salt in the substrate is blocked, so that the water ecosystem is in a perfect self-circulating state, reaching the level of nitrogen in the algae-rich area. Phosphorus nutrient capture and water quality improvement goals.

Description

technical field [0001] The invention relates to the technical field of ecological restoration, and more specifically, relates to a restoration method for eutrophic water body based on ecological isolation-fish restoration-substrate phosphorus locking-plant grabbing. Background technique [0002] The rapid development of economy and the continuous increase of population have caused a large amount of nutrients to flow into lakes continuously, resulting in the increasingly serious phenomenon of eutrophication in lakes, which has become a worldwide ecological environmental problem and affects the sustainable development of local society and economy. Therefore, it is of great theoretical and practical significance to carry out research on the degradation mechanism of eutrophic water ecosystem and its control technology. Using large aquatic plants to enrich nitrogen and phosphorus is one of the effective ways to control, regulate and inhibit water eutrophication. Large-scale aqua...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
CPCC02F9/00C02F1/50C02F1/58C02F3/32C02F3/322C02F2103/007C02F2101/105C02F2209/10C02F2209/16
Inventor 杨扬王赛李凤王林龙胜兴
Owner JINAN UNIVERSITY
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