Novel microenvironment efficient biological filter bed system for surface water treatment

Abstract

The invention discloses a novel microenvironment efficient biological filter bed system for surface water treatment. The system takes PVC (polyvinyl chloride) pipes as a support, integrates an ecological floating bed, biological filler and biological filter materials and cooperates with blast aeration equipment to purify surface water of polluted rivers, lakes, reservoirs and the like efficiently. The ecological floating bed is arranged at the upper part of the biological filter bed system for transplanting of perennial aquatic water purification plants with high stress resistance, and the porous net filler is arranged in the middle. Finally, the PVC pipes are used as the support to connect and stabilize the upper part, the middle part and the lower part of the biological filter bed system. The system has the advantages as follows: the system can be directly applied to sludge of the surface water of the polluted rivers, lakes, reservoirs and the like, can also be applied to subsequent treatment after deep treatment of effluent of domestic sewage and industrial sewage, has a certain landscape effect, has a large application range, belongs to the in-situ water remediation technology, causes no secondary pollution to the surroundings, is not high in construction cost and low in running and maintenance cost.

Description

technical field [0001] The invention relates to a surface landscape water ecological restoration system, in particular to a novel microenvironment high-efficiency biological filter bed system for surface water treatment. Background technique [0002] Restoration of polluted rivers, lakes and reservoirs is an urgent need for social and economic development and ecological environment construction. In particular, the pollution control projects along the eastern route of the South-to-North Water Diversion Project have a large volume and a wide area, and it is imminent to find advanced, practical and low-cost technologies. Water pollution in rivers, lakes and reservoirs in my country mainly includes two aspects: nitrogen, phosphorus and other nutrients and organic matter pollution. In addition, cyanobacteria and red tides in lakes and reservoirs have also caused serious harm to water ecology and human health. For the control of eutrophication, developed countries mainly control...

AI Technical Summary

Problems solved by technology

At present, there are three main types of technologies used in the world: 1) chemical methods: such as adding chemical agents to kill algae, adding iron salts to promote the precipitation of phosphorus, adding lime to denitrify, etc., but it is easy to cause secondary pollution; 2) physical methods: dredging Sediment, mechanical algae removal, water diversion and silting, etc., but often treat the symptoms but not the root cause; 3) Biological-ecological methods: such as stocking algae-controlling organisms, constructing artificial wetlands and aquatic vegetation

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