Method for treating rural domestic wastewater by using artificial wetland and ecological pond

Abstract

The invention relates to a method for treating rural domestic wastewater by using an artificial wetland and an ecological pond. The method comprises the following steps: (1) introducing the rural domestic wastewater into a grille well, putting the rural domestic wastewater into a facultative pond after the rural domestic wastewater is filtered through the grille well; (2) putting the water treated in the facultative pond into a biological filter which is filled with a brush elastic filter material, wherein the filament length of a corrugated filament of the brush elastic filter material is 160 to 200 mm, and the filament diameter is 2 to 5 mm; (3) putting the water filtered through the biological filter into the artificial wetland, wherein a matrix of the artificial wetland consists of a gravel layer with the particle size of 50 to 100 mm, a haycite layer with the particle size of 15 to 30 mm, a biological filter material layer with the particle size of 8 to 10 mm and a mud-free coarse sand layer with the particle size of 0.2 to 5 mm in sequence from bottom to top, and loosestrifes is planted in the artificial wetland; (4) putting the water treated with the artificial wetland into the ecological pond, wherein lotus flowers, hornworts and water lilies are planted in the ecological pond, and the water treated through the ecological pond is discharged to natural water. The method is suitable for dispersive villages in the countryside, is stable in treatment effect and can substantially reduce odor emission and mosquitoes.

Description

technical field [0001] The invention relates to a method for treating rural domestic sewage by utilizing artificial wetlands and ecological ponds, and belongs to the technical field of sewage treatment. Background technique [0002] With the rapid development of the rural economy, the discharge of comprehensive rural wastewater has gradually increased, which has deteriorating the environmental conditions in rural areas, and the environmental quality has declined significantly, directly threatening the living environment and health of the broad masses of farmers, and restricting the healthy development of the rural economy. . The random discharge of domestic sewage is the main cause of rural water environment pollution, which seriously pollutes the rural ecological environment and directly threatens the health of farmers and the economic development of rural areas. [0003] Rural domestic sewage in my country has the following characteristics: (1) Scattered and distributed i...

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Problems solved by technology

(3) Low processing efficiency

[0004] At present, there are many domestic and foreign treatment technologies for rural domestic sewage treatment, and the names are also various. However, both natural treatment systems and biological treatment systems have the problems of single technology and unstable treatment effects. At the same time, the treatment range is also limited, which is easy Smells and breeds mosquitoes