Enhanced ecological wetland treatment facility for treating sewage and method thereof

Abstract

The invention relates to an enhanced ecological wetland treatment facility for treating sewage and a method thereof. A sedimentation tank is used to remove floating objects and settleable suspended matters from the sewage; a water body treated by the sedimentation tank is uniformly distributed on a vertical flow filter bed of a vertical flow and horizontal flow combined filter bed through a waterdelivery and distribution system; the effluent enters a horizontal flow filter bed of the vertical flow and horizontal flow combined filter bed through a water collecting pipeline; after the pollutedwater body is biochemically treated by the vertical flow filter bed and the horizontal flow filter bed, the water body enters a secondary ecological wetland through the water collecting pipeline and is discharged into a natural water body after being purified; and the settled sludge in the sedimentation tank is discharged into a sludge drying bed and then is stabilized, and a percolate reflows tothe sedimentation tank for re-treatment. The method for treating the polluted water body by combining the sedimentation tank, the vertical flow horizontal flow filter beds and the sludge drying bed not only effectively treats the polluted water body, but also solves the problem of sludge disposal with low cost, and is suitable for the treatment of rural domestic sewage, city landscape water, polluted water bodies of rivers and lakes and the like.

Description

technical field [0001] The invention relates to an enhanced ecological wetland treatment facility and method for treating sewage, and belongs to the technical fields of environmental protection engineering and water treatment. Background technique [0002] With the rapid development of social economy, the excessive consumption of natural resources, the deterioration of the ecological environment, especially the increasingly serious phenomenon of water pollution and eutrophication. In order to meet the requirements of sustainable development, it is urgent to find scientific, safe, easy-to-maintain, economically feasible, and ecologically-friendly means to treat sewage. [0003] At present, pollution source control and ecological restoration methods are mainly used for governance, and constructed wetlands are one of the important scientific means. Constructed wetland is an ever-evolving sewage land treatment technology. The basic principle of water purification technology in ...

AI Technical Summary

Problems solved by technology

Due to the low treatment efficiency of surface flow constructed wetlands, a large amount of water and land are needed to ensure the purification effect, and once non-point source pollution is input, the purification effect is not obvious

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