River channel type reservoir algae control device and method

A technology for reservoirs and river channels, which is applied in the field of rectification hydraulic regulation and algae control devices for river-type reservoirs, can solve the problems that there is no application of surface flow field algae control technology, and achieve the effects of simple structure, good algae control effect, and easy operation

Pending Publication Date: 2018-04-20
HUBEI UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, there is no application of surface flow field algae control technology in actual engineering in China

Method used

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  • River channel type reservoir algae control device and method

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] see figure 1 , a river-type reservoir algae control device, which includes a water-proof curtain 1, the bottom of the water-proof curtain 1 is connected to a fixed pier 2 through a plurality of connecting cables 4, the fixed pier 2 sinks at the bottom of the water, and the water-proof A buoy 3 is connected to the top of the screen 1, and the buoy 3 stretches the water-proof screen 1 and makes it completely submerged below the water surface. By using the above-mentioned algae control device, the layout of the device greatly reduces the flow rate of the upper water body that is rich in nutrients, and the algae proliferates rapidly in this water area, consuming a large amount of nutrients in the upper water body, and the remaining nutrients play a role in the device. Under the water flow, it guides the lower layer of dark and low water temperature where algae are difficult to grow, so that it can inhibit the growth of algae within a certain distance.

[0033] Further, the...

Embodiment 2

[0042] The algae control method of any river type reservoir algae control device, it comprises the following steps:

[0043] Step1: Select the appropriate size, installation quantity and specific location of the water barrier curtain 1 according to the specific river channel type, water flow conditions and occurrence of algal blooms;

[0044] Step2: Use the determined size of the waterproof curtain 1 to determine the weight of the fixed pier 2 through mechanical analysis and calculation of the device structure;

[0045] Step3: Connect multiple fixed piers 2 and water-proof curtain 1 through connecting cables 4. The overall height of the device is the water depth of the layout point. When multiple fixed piers 2 sink to the bottom of the water, it also drives the water-proof curtain 1 to sink. into the water;

[0046] Step4: The top of the water-proof curtain 1 is close to the water surface, and after the water-proof curtain 1 is stabilized, fix the buoy 3 on the water-proof cu...

Embodiment 3

[0050] The water velocity is 0.1m / s, and the concrete density is 2.4×10 3 kg / m3, the length of the waterproof curtain is 50m, the height is 3m, and the thickness is 0.001m. After calculation, the weight of each fixed pier is 20kg.

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Abstract

The invention provides a river channel type reservoir algae control device and method. The river channel type reservoir algae control device comprises a water-proof curtain, the bottom of the water-proof curtain is connected with fixed piers through a plurality of connecting strands, the fixed piers sink to the bottom of water, the top of the water-proof curtain is connected with buoys, and the buoys expand the water-proof curtain and enable the water-proof curtain to be submerged below the surface of the water. The water-proof curtain is made of impervious geotextile and adopts a rectangularplanar structure with the length of 50-150m, the height of 3-15m and the thickness of 0.001-0.01m. The river channel type reservoir algae control method belongs to a surface flow field control methodand is applicable to river channels and reservoirs with certain water depths and slow water flow, a rectification waterpower controlling algae control device has no restriction on the river width, buta small river width is more conducive to the deployment and the operation of the rectification curtain and the cost saving.

Description

technical field [0001] The invention relates to a device for controlling algae in a channel-type reservoir, in particular to a device and a method for controlling algae in a channel-type reservoir with rectification and hydraulic control. Background technique [0002] The rectification hydraulic control algae control device uses the principle of hydrodynamics to change the flow pattern, nutrient salt, water temperature, dissolved oxygen and algae transport and diffusion in different water bodies and the distribution of nutrient concentration field by controlling the movement of water flow Thereby these environmental influence factors are unfavorable for algae to proliferate in large quantities, reach the purpose of controlling algae bloom. The hydrodynamic control methods of algae blooms can be summarized into: surface flow field control, water extraction (discharge) from selective layers, artificial delamination, increasing water discharge, artificial tides and other method...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B1/00A01M21/00
CPCA01M21/00E02B1/00
Inventor 马骏刘德富啜明英杨正健徐雅倩赵以军
Owner HUBEI UNIV OF TECH
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