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Ecological ditch for rural domestic sewage collection and pretreatment

A technology for domestic sewage and ecological ditches, applied in biological water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc. Achieve the effect of improving the removal effect, reducing the subsequent sewage treatment load and smooth road traffic

Inactive Publication Date: 2013-10-09
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Aiming at the problems that the existing rural domestic sewage collection and pretreatment require a special processor, the treatment cost is high, the treatment efficiency is low, the influent treatment load is high, and the water quality is unstable, the present invention provides a method for rural domestic sewage collection and pretreatment. The treated ecological ditch can effectively solve the problems of unsystematic collection of rural domestic sewage, high influent treatment load, and unstable water quality. It has a simple structure, easy maintenance, and high pollution control efficiency

Method used

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  • Ecological ditch for rural domestic sewage collection and pretreatment
  • Ecological ditch for rural domestic sewage collection and pretreatment

Examples

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Effect test

Embodiment 1

[0047] In order to verify the present invention, a test was carried out in a certain village, and the service object of the test project was local rural domestic sewage non-point source pollution. The main canal is an inverted trapezoid with a backwater slope angle of 60 degrees and a canal bottom width of 40 cm; there are 7 branch canals in an inverted trapezoidal backwater slope angle of 45 degrees and a canal bottom width of 15 cm. According to the composition of local plant communities and the characteristics of plant growth, the aquatic plants in the plant interception zone 8 are selected as bermudagrass, the aquatic plants in the slow-flow phytoremediation zone 14 are selected from saccharomyces and cress, and the aquatic plants in the landscape plant zone 17 are called calla lily . After the ecological ditch was completed, the aquatic plants planted in the ecological ditch showed good growth after 2.5 months of growth.

[0048] During the actual work, the rural domesti...

Embodiment 2

[0054] In order to further verify the present invention, the ecological ditch of the present invention was applied to the collection and pretreatment of domestic sewage in a certain village in the Chaohu Lake Basin. The test project service object is the local rural domestic sewage non-point source pollution. The main canal is an inverted trapezoid with a backwater slope angle of 60 degrees and a canal bottom width of 40cm; there are 5 branch canals in an inverted trapezoidal backwater slope angle of 45 degrees and a canal bottom width of 15cm. According to the composition of local plant communities and the characteristics of plant growth, the aquatic plants in plant interception zone 8 are selected as bermudagrass, the aquatic plants in slow-flow phytoremediation zone 14 are selected from mushroom grass and cress, and the aquatic plants in landscape plant zone 17 are selected from canna. After the ecological ditch was completed, the aquatic plants planted in the ecological dit...

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Abstract

The invention discloses an ecological ditch for rural domestic sewage collection and pretreatment and belongs to the field of rural sewage treatment. The ecological ditch for rural domestic sewage collection and pretreatment comprises a plurality of branch ditches and a main ditch. Torrent pollutant intercepting structures or slow flow pollutant intercepting structures are arranged at the water flow elevation changing positions of the branch ditches and the main ditch. Road intersection structures are arranged at the intersection positions between the branch ditches and roads and between the main ditch and roads. Each torrent pollutant intercepting structure is composed of a spherical suspended filler strand and an overflow weir. Each spherical suspended filler strand is formed by a plurality of spherical suspended fillers and a nylon rope which are connected in series. Each slow flow pollutant intercepting structure is formed by a slow flow pollutant reducing slope and a slow flow phytoremediation band which are connected. The ecological ditch for rural domestic sewage collection and pretreatment has the remarkable functions of rural domestic sewage collection and pretreatment, can effectively reduce the processing load of a follow-up process, and enables water to stably enter the follow-up process. In addition, the ecological ditch for rural domestic sewage collection and pretreatment will not cause secondary pollution, achieves waste resource utilization, and conforms to the environmental protection concept. Besides, the ecological ditch for rural domestic sewage collection and pretreatment is low in building cost and maintenance cost and is good in popularization and application value.

Description

technical field [0001] The invention belongs to the field of rural sewage treatment, in particular, relates to an ecological ditch for collecting and pre-treating rural domestic sewage, more specifically, refers to the high load of rural domestic sewage treatment, the water is difficult to meet the standard, through collection and Pretreatment to treat ecological ditches with stable load. Background technique [0002] In recent years, with the development of my country's rural areas and the rapid improvement of rural people's living standards, the discharge of rural domestic sewage has continued to increase. Rural domestic sewage is becoming one of the main reasons for the deterioration of my country's rural ecological environment, which seriously restricts the agricultural and rural economic environment. of sustainable development. [0003] Because rural pollution sources are scattered and wide-ranging, and limited by natural conditions, they are scattered and difficult to ...

Claims

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Application Information

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IPC IPC(8): E03F5/00E03F5/14C02F3/32C04B28/04C04B38/08
Inventor 曾远叶海范学平薛峰翁俊严小飞
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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