Diatomite dephosphorization and algae control method

A diatomite and water technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problem of high cost, achieve low construction and operation costs, reduce phosphorus concentration, and reduce phosphorus load.

Inactive Publication Date: 2011-04-13
ANHUI ACADEMY OF ENVRIONMENTAL SCIENCE RESEARCH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Denitrification requires advanced treatment, physical and chemical methods cannot be used, and microorganisms can only be used for nitrification and denitrification, and the cost is relatively high

Method used

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  • Diatomite dephosphorization and algae control method
  • Diatomite dephosphorization and algae control method
  • Diatomite dephosphorization and algae control method

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Embodiment Construction

[0017] The present invention will be further described below with reference to specific examples, but the protection scope of the present invention is not limited thereto.

[0018] 1. Example 1: see figure 1 , 2 . For the experimental project of in-situ phosphorus removal and algae control in lakes, large lakes with serious algal blooms are selected to face the lakeshore, and an area of ​​about 15,000m2 is constructed. 2 , Water volume is about 15000m 3 The boundary of the test area is separated from the outer lake by an impermeable PVC flexible enclosure 1. Luxiang builds a 7000m 3 Diatomite Phosphorus Removal Facility 2 with a scale of 1 / d, extracts the phosphorus from the lake shore and discharges it back to the experimental lake area. A one-year continuous test was carried out. The total phosphorus concentration of the lake outside the test area was 0.2-0.4 mg / L, and the diatomite phosphorus removal facilities were continuously operated. Since the water exchange insid...

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Abstract

The invention discloses a diatomite dephosphorization and algae control method for open water bodies, such as lakes, reservoirs, scenic water, and the like. A diatomite dephosphorization and algae control facility comprises a water intake pump room, a mixing pond, a grid flocculation tank, an inclined pipe sedimentation tank and an effluent pump room, wherein a discharging opening of a diatomite feeding device extends into the mixing pond which is provided with a stirrer, and the grid flocculation tank and the inclined pipe sedimentation tank are provided with sludge discharge pipelines connected with a sludge collecting tank. Water in the open water bodies or branches is conveyed into the diatomite dephosphorization and algae control facility for dephosphorization treatment and then drained back to the water bodies to reduce the frequency and the strength of algal blooms of the water bodies. Proved by in-site tests of the lakes and the treatment of civil scenic water bodies, the invention has remarkable effect.

Description

technical field [0001] The invention relates to eutrophication treatment and ecological restoration of open water bodies such as lakes, reservoirs, and landscape water, and particularly relates to a method for removing phosphorus and controlling algae from diatomite in open water bodies such as lakes, reservoirs, and landscape water. Background technique [0002] Algal blooms are a prominent contradiction of eutrophication. Every time an algal bloom occurs, the water ecological environment experiences a "shock". Year after year, algal blooms have seriously damaged the structure and function of aquatic ecosystems. The common problem of algal blooms is the current top priority of eutrophication management. [0003] Effectively reducing the nutrient load such as nitrogen and phosphorus in the water body, so that algae growth loses its material basis, is the fundamental way to control algal blooms. For a long time, my country's eutrophication control has always followed the st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/52
Inventor 陈云峰吴蕾张彦辉张浏
Owner ANHUI ACADEMY OF ENVRIONMENTAL SCIENCE RESEARCH
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