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Ecological interception ditch for controlling agricultural non-point source pollution

An ecological and ditch technology, applied in the field of agricultural non-point source pollution control, can solve the problems of limited interception effect, failure to reach agricultural non-point source pollution, and poor pollutant interception effect, so as to prevent soil erosion and enhance the effect of landscape

Inactive Publication Date: 2017-08-18
无锡金利达生态科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Ecological ditches are currently an important direction for research on the control of agricultural non-point source pollution. However, the existing ecological ditches have poor interception effects on pollutants, especially for high-concentration N and P. Far from meeting the control requirements for agricultural non-point source pollution

Method used

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  • Ecological interception ditch for controlling agricultural non-point source pollution

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Effect test

Embodiment 1

[0023] In this embodiment, the combined filler includes slag, husk peat, vermiculite and corn cob, and the mass ratio is 10:8:4:5. Nitrogen-fixing plants include micro-dentate eye vegetable, bitter grass, water onion, pike grass and calamus, and the micro-dentate eye vegetable, bitter grass, water spring onion, pike grass and calamus are evenly distributed on the ceramsite in a continuous planting manner. In the filler treatment zone and the first combined filler treatment zone. Phosphorus-fixing plants include water lily, water celery, spinosa, Alisma, alisma angustifolia, cattail, iris, and water lily, water celery, spinach, alisma, alisma angustifolia, cattail, iris They are respectively evenly distributed in the zeolite packing treatment area and the second combination packing treatment area in a continuous planting manner.

Embodiment 2

[0025] In this embodiment, the combined filler includes slag, husk peat, perlite and hemp fiber, and the mass ratio is 10:6:3:4. Nitrogen-fixing plants include water onion and pike grass, and the planting area ratio of water onion and pike grass in the ceramsite filler treatment area and the first combined filler treatment area is 1:2. Phosphorus-fixing plants include the yellow flower water dragon.

Embodiment 3

[0027] In this embodiment, the combined filler includes slag, husk peat, medical stone and coconut palm, and the mass ratio is 10:4:2:3. Nitrogen-fixing plants include calamus. Phosphorus-fixing plants include water dragon and water celery, and the planting area ratio of water dragon and water celery in the zeolite filler treatment area and the second combined filler treatment area are both 3:2.

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Abstract

The invention relates to an ecological interception ditch for controlling agricultural non-point source pollution. The ecological interception ditch comprises a sedimentation tank for depositing sediment, a primary treatment area for planting reeds and a combined treatment area in order along a water flow direction. Adsorption fillings and functional plants are arranged in the combined treatment area, and the functional plants comprise nitrogen fixing plants and phosphorus fixing plants. Compared with the prior art, on the base of ensuring the basic attributes of water collection and drainage of the ditch, the ecological interception ditch can effectively intercept organic pollutants and extra nutrients such as, N, P, etc. not to be directly discharged into water areas such as rivers, lakes, etc., and can utilize the extra nutrients such as, N, P, etc., thereby turning waste to wealth.

Description

technical field [0001] The invention relates to the field of agricultural non-point source pollution control, in particular to an ecological interception ditch for controlling agricultural non-point source pollution. Background technique [0002] Agricultural non-point source pollution (ANPSP) refers to the sediment, nutrients, pesticides and other pollutants in the farmland in the process of precipitation or irrigation in agricultural production activities, through farmland surface runoff, soil flow, farmland drainage and underground infiltration. Non-point source pollution formed by leakage and entering water bodies. These pollutants mainly come from farmland fertilization, pesticides, livestock and poultry, aquaculture and rural residents. Agricultural non-point source pollution is the most important and widely distributed non-point source pollution. Nutrients such as nitrogen and phosphorus, pesticides and other organic or inorganic pollutants in agricultural production...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02B5/00E02B5/02E02B5/08C02F9/14
CPCE02B5/00C02F1/52C02F3/32C02F3/34C02F2101/16E02B5/02E02B5/085
Inventor 张绍华许生军朱界荣李超杨浩飞唐永良慎伟华刘兴盛付琛陈政
Owner 无锡金利达生态科技股份有限公司
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