Ecological ditch for sewage treatment, and construction method and use thereof

Abstract

The invention discloses an ecological ditch for sewage treatment and a construction method and use thereof. The method comprises: (1) constructing a branch ditch: leveling the banks and bottom slope of the branch ditch, dividing the branch ditch into sections by constructing ecological intercepting base weirs at intervals at the bottom of the ditch, growing thick and high plants on the banks of the first section, close to farm land drainage outlets, of the branch ditch, planting aquatic plants at the bottoms of the other sections of the branch ditch, and growing 2 to 3 rows of antifouling plants on the slopes of the other sections; and (2) constructing a main canal: leveling the side slopes and bottom of the main canal, paving the entire leveled side slopes with hollow bricks filled with pebbles, planting emergent aquatic plants on the flooded parts of the side slopes, and planting landscape plants with strong roots on the upper parts of the side slopes, wherein the buried depth of the bricks is equal to the difference between the actual thickness of the hollow bricks and the thickness of the filled pebbles. The ecological ditch construction by the method is suitable for treating domestic sewage in rural areas and waste water from agricultural production activities. The construction method of the ecological ditch is simple, the daily maintenance and repair of the ecological ditch are simple, the cost of the ecological ditch is low, and the ecological ditch is easy to promote and use.

Description

technical field [0001] The invention belongs to the field of sewage treatment, in particular to a sewage treatment ecological ditch and its construction method and application. Background technique [0002] Under the combined effect of drainage technology and environmental protection technology, urban domestic sewage has been well treated, which has greatly improved urban environmental sanitation and water body landscape. However, rural domestic sewage has not been well treated due to its small daily average volume, high concentration, and difficulty in collection, which has a very bad impact on the life and health of rural residents and rural environmental sanitation. Most rural residents discharge rural domestic sewage directly into farmland branch ditches and main canals after being treated in simple septic tanks. The sewage flows into the downstream rivers and lakes along the branch ditches and main canals. Therefore, ditches have become the initial gathering places of...

AI Technical Summary

Problems solved by technology

Although this method provides good hydraulic conditions at the tail end, it requires the use of additional land resources, and the hydraulic conditions in the main channel are not changed

At the same time, the main increase in biomass of this method is provided by the biological pond at the end and the constructed wetland, and the biomass in the canal itself has not been improved.

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