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Method for treating sewage of scattered village peasant households by aquatic animal and plant purification pond

A technology of aquatic animals and plants, which is applied in the field of aquatic animal and plant purification ponds to treat scattered farmer sewage in villages, can solve water pollution and other problems, achieve high purification capacity, strong resistance to sewage impact load, and do not occupy land.

Inactive Publication Date: 2014-04-02
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The main purpose of the present invention is: aiming at the problem of water body pollution caused by the sewage discharge of scattered farmers in rural areas in southern my country, using the topographical conditions around the villages, the riverside or pond into which the sewage of scattered farmers is discharged is used as a treatment carrier, through planting aquatic plants, Add benthic animals and arrange artificial aquatic plants to build a purification pond based on aquatic animals, plants and artificial aquatic plants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] According to the above-mentioned implementation method, the average width of sewage discharged from scattered farmers in the village is 8m, the average water depth is 2.7m, and the water area is 400m 2 Riverside or pond, the water surface planting area of ​​aquatic plants is 120m 2 , of which: 312 plants of Zailihua, 162 plants of barracuda, 306 plants of canna, 468 buds of syringa, 24 heads of water lilies, 168 buds of Hydra verticillium, 408 buds of Uricola chrysalis; put in 92kg of benthic animals, of which 40kg of mussels, 32kg of snails, 20kg of loach; the area of ​​artificial aquatic plants is 56m 2 , 622 artificial aquatic plants are arranged at intervals of 30cm×30cm in plane size.

[0039] The purification pond constructed by the above technology and construction method can make the flow rate 27m 3 COD in / d sewage Cr From 350mg / L to 88mg / L, ammonia nitrogen from 45mg / L to 5.1mg / L, total phosphorus from 5.2mg / L to 0.44mg / L, total nitrogen from 200mg / L to 74m...

Embodiment 2

[0041] According to the above-mentioned implementation method, the sewage of scattered farmers in the village is discharged into an average width of 13m, an average water depth of 3m, and a water area of ​​600m 2 Riverside or pond, the water surface planting area of ​​aquatic plants is 192m 2 , of which: plant 461 plants of Zailihua, 230 plants of Barracuda, 460 plants of Canna, 730 buds of Cynocarpus, 40 heads of water lilies, 250 buds of Hydra verticillium, 620 buds of Uricola chrysalis; put in 138kg of benthic animals, of which Mussels 60kg, snails 48kg, loach 30kg; artificial aquatic plants layout area is 78m 2 , 866 artificial aquatic plants are arranged at intervals of 30cm×30cm in plane size.

[0042] The purification pond constructed by the above-mentioned technology and construction method can make the flow rate 46m 3 COD in / d sewage Cr From 383mg / L to 92mg / L, ammonia nitrogen from 42mg / L to 4.4mg / L, total phosphorus from 4.9mg / L to 0.38mg / L, and total nitrogen fr...

Embodiment 3

[0044] According to the above implementation method, the average width of sewage discharged from scattered farmers in the village is 20m, the average water depth is 1.8m, and the water area is 1000m 2 Riverside or pond, the water surface planting area of ​​aquatic plants is 350m 2 , of which: plant 770 plants of Zailihua, 367.5 plants of Barracuda, 787.5 plants of Canna, 1295 buds of Cynocarpus, 70 heads of water lilies, 420 buds of Hydra verticillium, 1050 buds of Uricola chrysalis; put in 230kg of benthos, of which Mussels 100kg, snails 80kg, loach 50kg; artificial aquatic plants layout area is 120m 2 , 1333 artificial aquatic plants are laid out at intervals of 30cm×30cm in plane size.

[0045] The purification pond constructed by the above-mentioned technology and construction method can make the flow rate 59m 3 COD in / d sewage Cr From 336mg / L to 84mg / L, ammonia nitrogen from 38mg / L to 4.5mg / L, total phosphorus from 4.8mg / L to 0.33mg / L, and total nitrogen from 185mg / L ...

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Abstract

The invention discloses a method for treating sewage of scattered village peasant households by aquatic animal and plant purification pond, and belongs to the technical field of environment protection. The method mainly aims at the difficult problem of water pollution caused by sewage discharge from scattered village peasant households in south rural areas of China, based on surrounding topographic conditions of villages, creeks or ponds, to which sewage of scattered peasant households is discharged, are used as treatment carriers, and by planting aquatic plants, adding benthonic animals and arranging artificial seaweeds, a purification pond based on aquatic animals and plants and artificial seaweeds is built. The treatment method can realize in-situ sewage purification without building sewage collection pipe networks and sewage treatment facilities, not only has good treatment effect and low cost of construction, but also spends no operating cost, occupies no cultivated land, is convenient to maintain and has remarkable benefit of ecological environment.

Description

technical field [0001] The invention belongs to the field of environmental protection, and in particular relates to a method for treating sewage from scattered farmers in villages in a purification pond for aquatic animals and plants. Background technique [0002] Most of the rural households in the rural areas of southern my country live scatteredly, and usually dozens to hundreds of households gather along rivers, valleys or ponds to form villages (or villages). Every household living in these villages has built a "septic pit" similar to a septic tank to collect human, livestock, poultry manure and some domestic sewage. In the past, most of the sewage in these "cesspit" was used as farmyard manure (commonly known as: manure). However, in recent years, due to the migration of young and middle-aged people to work in some rural areas, and the implementation of land intensive and contiguous high-efficiency agriculture (such as contracting large-scale grain production), the se...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32
CPCY02W10/10
Inventor 张文艺冯国勇刘芳李文昱陶勤锋
Owner CHANGZHOU UNIV
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