Unpowered underflow ecological sewage interception ditch system and construction method thereof

A ditch and underflow technology, applied in chemical instruments and methods, biological water/sewage treatment, water pollutants, etc., can solve the problems of low pollutant removal efficiency, insufficient stability, and single biodiversity.

Inactive Publication Date: 2021-07-06
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] 1) Ordinary ecological ditches are not efficient in removing pollutants;
[0005] 2) Biodiversity is relatively single and the stability is insufficient;

Method used

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  • Unpowered underflow ecological sewage interception ditch system and construction method thereof
  • Unpowered underflow ecological sewage interception ditch system and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 , figure 2 As shown, a non-powered underflow ecological sewage interception ditch system includes a ditch main body 1, a filling base material support layer 2, a dual-medium biological substrate layer 3 and an ecological planting layer 4, wherein the filling base material support layer 2, dual-medium biological The matrix layer 3 and the ecological planting layer 4 are laid sequentially from bottom to top at the bottom of the ditch main body 1. The ecological planting layer 4 adopts the mixed planting method of submerged plants and emergent plants, and the mixed planting of various aquatic plants can effectively remove the ecological environment. Excessive nitrogen, phosphorus, and potassium in the ditches can purify the water quality. In addition, a variety of aquatic plants can form an ecosystem, which can not only beautify the environment but also provide a place for pedestrians to stop and watch.

Embodiment 2

[0043] Such as figure 1 , figure 2 Shown, present embodiment is the further optimization carried out on the basis of embodiment 1, and its specific scheme is as follows:

[0044] The ditch body 1 is curved, preferably wavy.

Embodiment 3

[0046] Such as figure 1 , figure 2 Shown, present embodiment is the further optimization carried out on the basis of embodiment 1 or 2, and its specific scheme is as follows:

[0047] The main body of the ditch 1 is arranged according to the terraced fields with natural drop in the slope, that is, the ditch system is distributed in the terraced fields in a curved shape. Due to the slope of the natural drop, no additional water pump is needed for transportation, which solves the problem of power transmission.

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Abstract

The invention relates to an unpowered underflow ecological sewage interception ditch system. The system comprises a ditch main body, and a filling bottom material supporting layer, a double-medium biological matrix layer and an ecological planting layer which are laid in the ditch main body, and submerged plants and emergent aquatic plants are planted on the ecological planting layer. The construction method comprises the following steps: constructing the ditch main body with an inverted trapezoidal structure; laying an impermeable layer on the bottom of the ditch main body and the side slope; paving concrete and mortar pebbles to obtain a filling backing material supporting layer; mixing natural zeolite, porous ecological bricks, a curing agent, phosphate and a microbial mixed powdery fungicide, and paving the mixture on the filling backing material supporting layer to obtain a double-medium biological matrix layer; laying an ecological planting layer on the double-medium biological matrix layer; planting emergent aquatic plants and submerged plants on the ecological planting layer. An appropriate biological inhabiting environment is established, and a good micro-ecological succession structure of pollutants, microorganisms, planktons and submerged/emergent aquatic plants is formed, so that the control on non-point source pollutants such as nitrogen and phosphorus in the rural planting industry is enhanced.

Description

technical field [0001] The invention relates to the technical field of ecological treatment of agricultural wastewater, in particular to an unpowered underflow ecological sewage interception ditch system and a construction method thereof. Background technique [0002] Agricultural non-point source pollution mainly refers to the pollution caused by livestock and poultry breeding in the process of agricultural planting and breeding. Soil particles, nitrogen, phosphorus, pesticides and other harmful substances in agricultural land enter through surface runoff during precipitation or irrigation. The pollution caused by receiving water bodies includes the loss of livestock and poultry manure, the pollution of planting chemical fertilizers and pesticides, the pollution of straw, and the pollution caused by domestic garbage that has not been collected and treated, domestic sewage that has not been collected and managed, and soil erosion of agricultural land. Water and soil pollutio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/30C02F3/34E02B11/00E02B13/00C02F101/16C02F101/10C02F101/30
CPCC02F3/32C02F3/302C02F3/34E02B11/00E02B13/00C02F2101/16C02F2101/105C02F2101/30
Inventor 朱联东尹志红胡丹褚若愚李卓李天瑞
Owner WUHAN UNIV
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