Algae-removing and algae-collecting device for photocatalytic oxidation-biological floating bed

Abstract

The invention relates to an algae-removing and algae-collecting device for a photocatalytic oxidation-biological floating bed. A photocatalytic oxidizing device is mounted on a light anticorrosion frame; the left side and the right side of the photocatalytic oxidizing device are both connected with floating bodies; the front sides of the left and right floating bodies and the front side of the photocatalytic oxidizing device are connected with one biological floating bed; the rear sides of the left and right floating bodies and the rear side of the photocatalytic oxidizing device are also connected with one biological floating bed; plants are planted on the biological floating beds; the photocatalytic oxidizing device comprises a photocatalytic membrane component, an aerator and a light-focusing plate; the photocatalytic membrane component is mounted on the aerator; the light-focusing plate is mounted on the photocatalytic membrane component; a pump slot is arranged on one side of the light anticorrosion frame; a self-absorbing type water pump is arranged in the pump slot; and the self-absorbing type water pump is connected with a bag type filtering device. The functions of removing algae, sterilizing, denitrifying, dephosphorizing, connecting algae, and the like, for water body are integrated in the device provided by the invention, so that the to-be-treated water body rich in nutrition is thoroughly treated.

Description

technical field [0001] The invention relates to a photocatalytic oxidation-biological floating bed algae removal and algae collection device for treating eutrophic water bodies, which belongs to the technical field of environmental protection engineering and water treatment. Background technique [0002] For a long time, the nitrogen and phosphorus in lakes and rivers have exceeded the standard, leading to the excessive reproduction of blue-green algae, which has plagued the work of water pollution control. With the development of the economy, the excessive discharge of a large amount of industrial wastewater and domestic sewage organic pollutants has led to excessively high content of nutrients such as total nitrogen and total phosphorus in lakes and other water bodies, exceeding the self-purification capacity of lakes, causing algae to multiply and destroy The original ecological balance reduces the use function of the water body. [0003] There are many methods to contr...

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Problems solved by technology

[0002] For a long time, the nitrogen and phosphorus in lakes and rivers have exceeded the standard, leading to the excessive reproduction of blue-green algae, which has plagued the work of water pollution control

With the development of the economy, the excessive discharge of a large amount of industrial wastewater and domestic sewage organic pollutants has led to excessively high content of nutrients such as total nitrogen and total phosphorus in lakes and other water bodies, exceeding the self-purification capacity of lakes, causing algae to multiply and destroy The original ecological balance reduces the use function of water body

[0003] There are many methods to control eutrophic water bodies, mainly including: (1) Physical methods: such as filtering algae, clay algae, air floatation, water change / dilution, dredging, mechanical algae harvesting, etc., with large investment and operating costs High, sometimes poor efficiency; (2) Chemical methods: such as chlorine algae removal, ozone algae removal, potassium permanganate algae removal, etc., this method has secondary pollution problems; (3) Biological-ecological methods: such as aquatic phytoremediation Technology, aquatic animal restoration technology, biofilm technology, etc., are more suitable for the prevention of eutrophication, because biological growth has certain requirements on the external environment, when the external environmental conditions change, it will inevitably affect its treatment effect

The use of nano-photocatalytic technology to control water pollution is a new field of sewage treatment in recent years. Photocatalytic reaction has a strong sterilization and disinfection effect, can decompose algae toxins, decompose organic pollutants, and has a strong killing effect on algae. The effect of nitrogen and phosphorus removal is not ideal, if combined with bio-ecological technology, satisfactory treatment effect will be obtained

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