Solar power nitrogen and phosphorus removal biological box array used for in-situ purification for eutrophic slow flow water body

Abstract

The invention discloses a solar power nitrogen and phosphorus removal biological box array used for in-situ purification for eutrophic slow flow water body. The biological box array uses longitudinal array or other array combination, and the biological box array is composed of different functions of biological box monomers with similar shape. The biological box monomer comprises a body framework, a floating body, a photovoltaic power system, an aeration or flow pushing facility and a biological box; the biological box body is a stainless steel box body or a plastic mesh cage, and combined biological carrier is filled in the box body. The biological boxes are divided into aerobic biological boxes and anoxic biological boxes which are combined into the array in a certain mode. An aeration plate is arranged at the bottom of each aerobic box body, and the arrangement of the flow pushing facility is determined according to the water flow. The solar power nitrogen and phosphorus removal biological box array used for the in-situ purification for the eutrophic slow flow water body uses the combined biological carrier with special proportion and uses step-by-step nitrification and denitrification, the filler use ratio can be effectively improved, and accordingly the purification efficiency can be improved. The solar power nitrogen and phosphorus removal biological box array does not depend on the plant, and the disadvantage that a plant type floating island is difficult to manage is avoided. The solar power nitrogen and phosphorus removal biological box array is not limited by the power supply condition by means of using solar clean energy.

Description

technical field [0001] The invention belongs to the technical field of in-situ water quality purification of rivers and lakes, and specifically relates to a solar biological box array which is applied to eutrophic slow-flowing water bodies and has the functions of intercepting, adsorbing and biologically purifying pollutants. Background technique [0002] With the rapid development of industry and agriculture, the water quality of surface water bodies has gradually deteriorated, and the nutrients such as nitrogen, phosphorus, potassium, and carbon in the water body have increased, making the water body eutrophic. The massive reproduction of algae and other plankton causes the dissolved oxygen in the water to drop rapidly, causing other aquatic organisms to suffocate and die due to lack of oxygen, directly destroying the aquatic ecosystem, affecting economic benefits, and causing harm to human health. [0003] In response to the urgent need to control eutrophic water bodies, ...

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Problems solved by technology

The combination of plants and fillers as mentioned above and the comprehensive floating island supplemented by aeration and pushing flow devices can improve the purification efficiency of water bodies, but due to the influence of factors such as water quality and quantity, the local dissolved oxygen concentration of the floating island is difficult. Control, if the dissolved oxygen is too low, the nitrification effect will be poor, and if the dissolved oxygen is too high, the denitrification effect will be reduced, resulting in a low utilization rate of the filler, which loses the meaning of combining plants and fillers

[0012] The above research on all types of floating islands shows that the use of combined fillers can improve the purification effect of floating islands on eutrophic water quality, but the various parts of the combined fillers must be filled in an appropriate proportion to optimize the purification effect; aeration It can improve the purification efficiency of floating islands, but it is necessary to strictly control the amount of aeration to make the local dissolved oxygen concentration in the filling area of ​​floating islands suitable. Studies have shown that due to changes in water quality and quantity, it is difficult to control the dissolved oxygen concentration ideally

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