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A whole-process treatment method for phytoplankton

A phytoplankton and whole-process technology, applied in the field of water environment management, can solve problems such as difficult to eradicate and recurring phytoplankton problems, achieve effective cost, high-efficiency phytoplankton growth in the whole process, and avoid the effect of water body oxygen deficiency

Active Publication Date: 2021-03-23
CHINESE RES ACAD OF ENVIRONMENTAL SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in fact, a large number of algae dormant in the upper sediment in the form of spores, etc., are the cause of recurring phytoplankton problems that are difficult to eradicate

Method used

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  • A whole-process treatment method for phytoplankton
  • A whole-process treatment method for phytoplankton
  • A whole-process treatment method for phytoplankton

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] This embodiment is used to illustrate the system for the whole process of phytoplankton treatment, including the following devices connected in sequence: submersible pump, coarse grid, water inlet pipe with permanent magnet, regulating tank, magnetization equipment, aeration and oxygenation equipment and plumbing.

[0049] Among them, the head of the submersible pump is 15m and the power is 160m 3 / h.

[0050] Among them, the grid gap of the coarse grid is 40mm, and the installation angle is 60°.

[0051] Among them, the diameter of the water inlet pipe is 160mm and the length is 5m; the raw material of the permanent magnet is rare earth RuFeB.

[0052] Among them, the regulating pool is a cuboid device with a size of 3.0m×1.5m, an effective water depth of 2m, and an effective volume of 9m 3 .

[0053] Among them, the maximum processing capacity of the magnetizing equipment is 5000m 3 / d, the magnetic field ranges from 50mT to 2500mT.

[0054] Among them, the oxyg...

Embodiment 2

[0055] The control of embodiment 2 phytoplankton

[0056] In this embodiment, the water body of a rural pond with severe eutrophication is taken as an example to illustrate the method for treating phytoplankton by using the system described in Embodiment 1.

[0057] After testing, the water temperature of the rural pond is 16-28°C, the phytoplankton in the water body are in the growth stage, the chlorophyll a content in the water body reaches 78 μg / L, and the TP content reaches 0.33 mg / L, which belongs to the severe eutrophication water body.

[0058] Use the submersible pump to lift the pond water to the coarse grid and pass through it to remove large particles of garbage, animal and plant residues, and larger phytoplankton in the water;

[0059] The filtered water body is pre-magnetized through the water inlet pipe equipped with permanent magnets, and the water flow speed is about 0.5-1.0m / s;

[0060] After the water body is pre-magnetized, it enters the adjustment tank. Af...

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Abstract

The invention relates to the field of water environment treatment, and specifically discloses a whole-process treatment method for phytoplankton. The method comprises that the water body in the natural environment is firstly passed through a filter device to remove large-volume particles in the water body, and then pre-magnetized through a water pipe provided with a multi-pole permanent magnet, and then enters a regulating tank to homogenize and / or Or flocculation and sedimentation to separate the phytoplankton and suspended particles in the water body, and then according to the different growth stages of the phytoplankton, by applying different magnetic field strengths to suppress or even directly kill the phytoplankton to achieve the optimization of cost and effect, and finally to the magnetized water body Carry out aeration and oxygenation and release into the natural water environment.

Description

technical field [0001] The invention relates to the field of water environment treatment, in particular to a whole-process treatment method for phytoplankton. Background technique [0002] The massive reproduction of phytoplankton reduces the dissolved oxygen in the water body and causes the death of other aquatic organisms, thus hindering and destroying the aquatic ecosystem and water functions. When the phytoplankton proliferate to a certain amount, there will be phenomena such as emitting foul odor, reducing the transparency of the water body, reducing the dissolved oxygen in the water body, releasing toxic substances, shortage of living water for people, and reducing the stability and diversity of aquatic organisms. It will bring huge losses to the fields of drinking water, industry and agriculture, seriously hinder the sustainable development of the economy, and restrict the improvement of people's living standards. [0003] There are many existing phytoplankton treatm...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/12
CPCC02F9/00C02F1/001C02F1/48C02F1/5236C02F7/00C02F1/481C02F2001/007C02F1/74C02F1/5245C02F2103/007C02F2303/24C02F1/482C02F2303/04
Inventor 张列宇祝秋恒李伟李国文李晓光李曹乐黎佳茜车璐璐赵琛
Owner CHINESE RES ACAD OF ENVIRONMENTAL SCI
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