Turbidity-reducing and algae-inhibiting method

A technology for reducing turbidity and submerging plants, applied in chemical instruments and methods, energy wastewater treatment, water/sludge/sewage treatment, etc. Lake nutrients and other issues, to avoid excessive growth, solve the eutrophication of water bodies, and improve transparency

Inactive Publication Date: 2014-09-10
东莞市华中生物科技有限公司
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Problems solved by technology

Mechanical dredging and diversion flushing are effective and traditional ways to reduce lake nutrient elements. However, these two methods have two problems: one is high cost, and the other is that they cannot fundamentally control and eliminate lake eutrophication. tr

Method used

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  • Turbidity-reducing and algae-inhibiting method

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Embodiment 1

[0018] See figure 1 As shown, Example 1: A case of water body restoration in the closed water area of ​​Simeitang Park in Wuhan

[0019] Wuhan Simeitang Park is located under the Wuchang Bridge on the south bank of the Second Yangtze River Bridge, adjacent to the middle section of Heping Avenue. The project establishes enclosed enclosed waters as shown in the attached figure in the enclosed waters of Simeitang Park. The water body index is close to the Class IV standard of surface water, the total nitrogen is 8.1 mg / L, the sum of NH4-N and NO3-N is 2.65 mg / L, the total phosphorus and dissolved inorganic phosphorus are 0.73 mg / L and 0.64 mg / L, and the transparency is 28 cm, reaching the lake water level IV standard.

[0020] Using immobilized bacterial fluidized bed, put in compound microbial agents, including: photosynthetic bacteria, organic mineralizing bacillus, nitrifying bacteria, denitrifying bacteria, phosphorus accumulating bacteria, etc., to strengthen the denitrifi...

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Abstract

The invention relates to a turbidity-reducing and algae-inhibiting method which comprises the following steps: (1) manually putting in various compound microbial preparations in a eutrophic polluted water body; (2) under the premise of improving the transparency, planting submerged plants; (3) putting in a certain amount of herbivorous fishes according to the growing condition of the submerged plants, and bringing out part of nutritional salt of the water body through fish bodies by manually fishing the herbivorous fishes periodically; (4) determining water quality indexes before and after the steps, wherein the compound microbial preparations comprise photosynthetic bacteria, organic mineralized bacillus, nitrobacteria, denitrifying bacteria and phosphorus-accumulating bacteria; the submerged plants are selected from hornworts, water caltrops, waterweed, eel grass or potamogeton maackianus. According to the method provided by the invention, microorganisms-submerged plants-herbivorous fishes are gradually introduced to form an integral biologic chain which has good compatibility to the ecological system of the water body; the submerged plants are introduced to absorb inorganic N and P with low concentration in the water body, so that the water quality is improved.

Description

technical field [0001] The invention relates to the technical field of sewage purification, specifically refers to a method for reducing turbidity and inhibiting algae by using biological chain steps to promote eutrophication of polluted water bodies. Background technique [0002] The eutrophication pollution and ecological damage of lake water are one of the main ecological problems that our country is currently facing. Although my country started to control the eutrophication of some important lakes in the 1980s, the effectiveness of the control obviously cannot keep up with the pace of urban development. Therefore, only by taking effective measures to purify the pollution of eutrophic water bodies in lakes can it be possible to control the development and spread of water pollution in my country from the total amount. The key to eliminating eutrophication in rivers and lakes is to reduce the nitrogen and phosphorus load in the water body and reduce the algae biomass. [...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F3/32
CPCY02W10/37
Inventor 梁运祥李卓杰吴定心钟旭胜
Owner 东莞市华中生物科技有限公司
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