An immobilized microorganism-plant combination ecological treatment system and its application

Abstract

The invention belongs to the field of sewage treatment, and particularly relates to an immobilized microorganism-plant combined ecological treatment system and application. The system comprises a slow flow settling region and at least one purification region in sequential arrangement, wherein the purification region consists of a broad-crested weir and an immobilized microorganism packing pool; the front part of the broad-crested weir is connected with the slow flow settling region; the back end of the broad-crested weir is connected with the immobilized microorganism packing pool; the width of the slow flow settling region is identical to that of the bottom surface of a riverway; the bottom surface of the slow flow settling region is lower than the river bottom; the broad-crested weir is higher than the river bottom; the bottom surface of the immobilized microorganism packing pool is lower than the river bottom; three layers of packing of immobilized microorganisms are arranged in the immobilized microorganism packing pool; the packing sequentially includes a gradation cobblestone layer, a water supply sludge particle layer and a submerged plant planting region from bottom to top; rich nutritive salt and inorganic salt such as total phosphorus and ammonia nitrogen in a black and odorous water body can be continuously and efficiently removed; various contaminants can be treated; high applicability and continuity are realized; the water pollution treatment cost is reduced.

Description

technical field [0001] The invention belongs to the field of sewage treatment, and in particular relates to an immobilized microorganism-plant combination ecological treatment system and its application. Background technique [0002] In recent years, with the continuous advancement of special science and technology for national water treatment, the treatment technologies for river water bodies and black and odorous water bodies have made great progress. New technologies and methods for the overall treatment of urban inland water bodies have emerged in endlessly, but Among these methods and technologies, there are also some problems, which can be roughly divided into two categories, one is unpowered, including regular water changes to maintain water quality or regular salvage of sediment to prevent odor; the other is powered Type, mainly for aeration and reoxygenation. But both methods have their own advantages and disadvantages. The non-powered type is mainly for quick res...

AI Technical Summary

Problems solved by technology

The non-powered type is mainly for quick results and good water quality, but it costs a lot of money, and it must also ensure a small amount of exchangeable water. This is basically suitable for the main cities near the south with sufficient water sources, and cannot be widely used in some relatively short-sighted cities. In northern cities with water, some operating systems that rely solely on aeration and reoxygenation based on power are relatively slow to take effect. Due to the lack of some corresponding carriers, the actual effect is not ideal

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