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

A technology for ecological ditches and sewage treatment, applied in the direction of biological water/sewage treatment, water/sludge/sewage treatment, sustainable biological treatment, etc., can solve the problem that the biomass has not been improved, and achieve easy implementation, promotion and low cost Low cost, low construction cost and low maintenance cost

Inactive Publication Date: 2011-03-16
HUNAN AGRICULTURAL UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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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 t

Method used

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

Examples

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Example Embodiment

[0036] Example 1:

[0037] In the farmland area of ​​Shuanglongpo Village, Wenchang City, Hainan Province, three rural domestic sewage discharge branch ditches and the main canals connected to the branch ditches were selected to transform them with the above construction method. The three branch ditches are trapezoidal cross-sections with a lower width of 50 cm and an upper width of 80 cm. With a height of 35cm and a length of 70m, a total of three foundation weirs were built. The first one was built 20m away from the water inlet, and one foundation weir was built every 15m. The ecological interception foundation weir was built by ramming local soil. The bottom width is 15cm and the upper width is 10cm; since these three branch ditches correspond to a household, the height of the foundation weir calculated from the average daily water volume is very small, so the height is 20cm based on the farmland outlet; the first branch ditches Canna is planted on the side slope, aquatic conv...

Example Embodiment

[0040] Example 2:

[0041] Two branch ditches and one main canal were selected for ecological reconstruction in the suburban farmland of Kunming, Yunnan Province. The branch ditches are trapezoidal in cross-section, 15cm wide, 25cm wide, 20cm high, and 30m long; the first foundation weir was repaired at Lijin At 12m from the water inlet, one will be built every 8m later, and a total of three foundation weirs will be built; the ecological interception foundation weir is built by ramming local soil, with a bottom width of 25cm and an upper width of 15cm; the upstream of the branch ditch is a gathering area for rural residents. The amount of sewage is large, the average daily water volume of the branch ditch is 10m 3 After trial calculations, the height of the ecological weir is about 5cm, but the outlet of the farmland is about 12cm from the bottom of the ditch. Therefore, taking the outlet of the farmland as the reference index, the height of the weir is reduced by 2cm, so the heig...

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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...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F3/34
CPCY02W10/10
Inventor 贺德春许振成吴根义秦国建
Owner HUNAN AGRICULTURAL UNIV
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