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Method for treating eutrophication of small water body in hilly area

A water eutrophication and regional technology, applied in the field of water management, can solve problems such as complex topography, aggravation of deterioration, rebound of reservoir water quality management, etc., to achieve the effect of improving the living environment of people, wide application range, and promoting sustainable development

Inactive Publication Date: 2020-09-29
SICHUAN PROVINCE NEIJIANG CITY ACADEMY OF AGRI SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Reservoirs in hilly areas have different shapes, different water levels, complex terrain and topography, are difficult to release water for dredging, and are frequently affected by human production activities. Treatment, it is difficult to achieve the desired effect, which makes the water quality of the reservoir rebound, worsen, poor stability, unsustainable and other problems

Method used

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  • Method for treating eutrophication of small water body in hilly area
  • Method for treating eutrophication of small water body in hilly area
  • Method for treating eutrophication of small water body in hilly area

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Embodiment 1

[0042] Embodiment 1 The present invention controls the eutrophication of small-scale water bodies in hilly areas

[0043] 1) Ban aquatic products, agricultural non-point source pollution and industrial pollution within 0.05-0.1km around the water body, and set up a plant isolation zone within 0.01-0.02km around the water body;

[0044] 2) Improved sediment and original algae disinfecting

[0045] Most of the small water bodies in hilly areas have not been dredged for a long time after they were built. In addition to the accumulation of waste water fish farming, water poultry farming, domestic sewage and agricultural non-point source pollution, most of the bottom silt deposits are organic matter. By using modified clay minerals and quicklime The mixture treats the sludge to change the permeability of the bottom sludge and control phosphorus. The ratio of modified clay minerals to quicklime is 1:1, and the amount used is 3-5 kg ​​per mu of water surface;

[0046] Select the sp...

Embodiment 2

[0061] Embodiment 2 The present invention controls the eutrophication of small water bodies in hilly areas

[0062] 1) Ban aquatic products, agricultural non-point source pollution and industrial pollution within 0.05-0.1km around the water body, and set up a plant isolation zone within 0.01-0.02km around the water body;

[0063] 2) Improved sediment and original algae disinfecting

[0064] Most of the small water bodies in hilly areas have not been dredged for a long time after they were built. In addition to the accumulation of waste water fish farming, water poultry farming, domestic sewage and agricultural non-point source pollution, most of the bottom silt deposits are organic matter. By using modified clay minerals and quicklime The mixture treats the sludge to change the permeability of the bottom sludge and control phosphorus. The ratio of modified clay minerals to quicklime is 1:1, and the amount used is 3-5 kg ​​per mu of water surface;

[0065] Select the special ...

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Abstract

The invention discloses a method for treating eutrophication of a small water body in a hilly area. The method comprises the following steps of: 1) associating a pollution source within 0.05-0.1 km around a water body, and arranging a plant isolation belt within 0.01-0.02 km around the water body; 2) improving bottom mud, and killing primary algae; 3) cultivating dominant populations of beneficialalgae, and regularly putting a microecological preparation; 4) constructing a submerged plant planting platform; 5) putting filter-feeding fishes, small indigenous fishes and carnivorous fishes; 6) stocking benthonic animals; 7) arranging oxygenation or aeration equipment; 8) constructing emergent plant community in a shallow water area; 9) constructing evergreen plants in a hydro-fluctuation belt of the water body; and 10) harvesting aquatic plants and fishing fishes. The method of the invention overcomes the problem of pollution of water area environments in hilly areas, promotes sustainable development of water environments, and is suitable for eutrophication treatment of fresh water bodies in lakes, reservoir branches and cities, wide in application range and high in practical application and popularization value.

Description

technical field [0001] The invention relates to a method for treating eutrophication of small water bodies in hilly areas, belonging to the field of water treatment. Background technique [0002] As global economic development and population growth continue, the water environment is under increasing pressure. Decades of high-speed industrialization and urbanization have also made my country face the severe challenge of water pollution. In recent years, my country has made a lot of explorations on water environment governance. In the long-term governance process, it has accumulated a series of effective experience, and used and proposed some optimization models and solving techniques, such as Tuojiang water quality planning, Shanghai Huangpu Comprehensive treatment of river water pollution, water pollution system planning of the Yalu River in Dandong, research on pollution prevention and control planning of the Wuhan section of the Yangtze River, water resources protection pl...

Claims

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Application Information

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IPC IPC(8): C02F9/14A01G18/00A01G22/00A01K61/10A01K61/50
CPCC02F9/00A01G22/00A01G18/00A01K61/10A01K61/50C02F2103/007C02F3/327C02F1/00C02F7/00Y02A40/81
Inventor 苏建吴俊王燕胡少迪熊小琴樊威焦晓磊苏全森
Owner SICHUAN PROVINCE NEIJIANG CITY ACADEMY OF AGRI SCI
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