Constructed wetland with sewage treatment function

Abstract

The invention relates to an environmental project able to treat sewage, especially to a constructed wetland with a sewage treatment function. According to the technical scheme of the invention, the constructed wetland with a sewage treatment function is characterized by comprising a wetland main body composed of a plant and a filling material. The wetland main body is provided with a heating functional device, an aerobic functional device, a carbon source adding and denitrification functional device, a physicochemical adsorption functional device and a sludge discharge functional device. The carbon source adding and denitrification functional device consists of a hollow filtering cavity and a carbon source substance displaced in the hollow part of the hollow filtering cavity. The physicochemical adsorption functional device includes a hollow filtering cavity and a fine-grained physicochemical adsorption filling material disposed in the hollow part of the hollow filtering cavity. By means of the above scheme, the invention overcomes problems existing in prior art, and provides a novel constructed wetland with a sewage treatment function, wherein, the constructed wetland has the advantages of high removal efficiency, stable operation, and difficult obstruction, etc.

Description

technical field [0001] The invention relates to an environmental engineering with sewage treatment, in particular to an artificial wetland with sewage treatment function. Background technique [0002] As a low-cost domestic sewage treatment technology, constructed wetlands have been widely used in rural areas and small towns in my country, and have made important contributions to controlling non-point source pollution and preventing eutrophication of water bodies. [0003] At present, there are some problems in the application process of most constructed wetlands: 1. The phosphorus removal function of constructed wetlands is mainly realized through the physicochemical adsorption of fillers. Generally speaking, the finer the fillers, the better the physicochemical adsorption effect on phosphorus. , but the filler is too fine and it is easy to cause blockage of the constructed wetland. Therefore, in the practical application of the constructed wetland, the particle size of the...

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Problems solved by technology

[0006] By adopting the above scheme, the following goals can be achieved: 1. The heating function device can ensure the high purification efficiency of domestic sewage in the constructed wetland in winter, thereby solving the problem that the traditional constructed wetland is difficult to maintain normal operation in winter in northern my country; 2. Good The existence of oxygen functional devices, denitrification adding carbon source functional devices and physical and chemical adsorption functional devices greatly improves the efficiency of nitrogen and phosphorus removal in traditional constructed wetlands; 3. The existence of sludge discharge devices can regularly remove sludge inside constructed wetlands efficiently Compared with traditional constructed wetlands, it not only prolongs the service life of constructed wetlands, but also makes management and maintenance more convenient, fast and efficient

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