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Manual flow making device and application thereof in algal bloom prevention and control

A flow-making and engineering technology, applied in the field of water pollution physical treatment and algal bloom prevention and control, can solve problems such as inability to apply river bloom treatment, and achieve the effect of good popularization and application value, simple working principle and convenient operation.

Inactive Publication Date: 2012-12-12
INST OF AQUATIC LIFE ACAD SINICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The research results are obtained based on the data of the mesocosm test, and no actual field algae control operations have been carried out; in addition, the core device relied on by the results is a fixed pumping tube, which cannot meet the needs of river bloom disposal

Method used

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  • Manual flow making device and application thereof in algal bloom prevention and control

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Experimental program
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Effect test

Embodiment 1

[0036] See figure 1 , build an artificial flow device, the device includes an engineering ship (1), the total deadweight tonnage of the engineering ship (1) is 50 tons, the length is 45.0m, and the width is 4.5m;

[0037] The cabin of the engineering ship (1) is provided with a sewage pump (4), a marine diesel engine (6) and a generator set (7);

[0038] There are two sewage pumps (4), both of which are fixed on both sides of the bottom of the cabin of the engineering ship (1) by bolts; the power of the sewage pump (4) is 180kw, the head is 20m, and the displacement is 1000m 3 / h, such a high-power sewage pump can ensure a flow rate of more than 2m / s within a range of 150m;

[0039] The engineering ship (1) is also provided with two adjustable water inlet pipes (2) and two adjustable water outlet pipes (3); correspondingly, the engineering ship (1) is provided with four hydrological winches (5), respectively connected to the water inlet ends of the two adjustable water inlet...

Embodiment 2

[0054] Utilize a kind of artificial flow device constructed in embodiment 1 to carry out algae bloom prevention and control:

[0055]In 2010, during April to early June when the water blooms broke out in the tributaries of the Three Gorges, the artificial flow disposal and control of the water blooms were carried out; in the core waters of the water blooms, the Xiangxi River Gorge Mouth - Pingyikou waters, the artificial flow of the present invention was carried out. The flow device completes the full mixing of the water body. In view of the narrow and long water body of the Xiakou-Pingyikou, the ship cannot turn around and rotate in situ, and can only choose reciprocating cruising for artificial flow.

[0056] The two adjustable water inlet pipes (2) both use the hydrological winch (5) to adjust the position of the water inlet, and place them in the water layer at a depth of 10m;

[0057] Considering the narrow channel of the water area where the water bloom occurs in the Thr...

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Abstract

The invention relates to the technical field of water pollution physical treatment and prevention and control of algal bloom, and provides a manual flow making device. The manual flow making device comprises an engineering ship, a sewage pump, a hydrologic winch and the like, wherein a high-power sewage pump, a diesel oil power machine and a generator set are arranged in a cabin of the engineering ship, a water inlet and a water outlet of the high-power sewage pump are respectively connected in a compression manner through a hose, a direction is adjusted through the hydrologic winch so as to change the inlet water current and the outlet water current. According to the invention, flow field interference is taken as a core technology, through actions of the high-power sewage pump and the engineering ship, hydrologic characteristics of a working water area can be changed, and flow state characteristics of a water area with water bloom can be destroyed, so that a water body is accelerated to flow and mix, the content of dissolved oxygen of the water body in the working region is increased, the temperature property and the optical property of the water body are changed, a space distribution pattern of biogenesis elements is adjusted, substance circulation and energy flow are promoted, environmental conditions necessary for dominant species of algae are destroyed, coverage cannot be kept, and competitive capacity is lost and is gradually faded.

Description

technical field [0001] The invention relates to the technical field of physical treatment of water pollution and the prevention and control of algae blooms, and more specifically relates to an artificial flow device and its application in the prevention and control of algae blooms, which is suitable for waters where water blooms frequently occur, especially the Three Gorges For the prevention and control of algal blooms in river waters such as tributaries of reservoirs and the Han River, the present invention is also applicable to the algal bloom problems caused by hydrological flow state factors in other water bodies. Background technique [0002] At present, the frequency and severity of algae blooms in freshwater bodies in the world are showing a rapid growth trend, and the waters occur all over the world; the problem of algae blooms has become one of the main problems in the protection of the global freshwater ecological environment; preventing and controlling the outbrea...

Claims

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Application Information

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IPC IPC(8): C02F1/00
Inventor 毕永红黄文敏米武娟胡征宇
Owner INST OF AQUATIC LIFE ACAD SINICA
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