Method for treating sewage and ecologically restoring water environment of villages and small towns in water network region

A sewage treatment method and regional technology, applied in water/sewage multi-stage treatment, biological water/sewage treatment, water/sludge/sewage treatment, etc. Problems such as difficulties in collecting system construction, achieve the effects of small investment, saving power consumption, and convenient management and maintenance

Inactive Publication Date: 2011-01-12
CHANGZHOU UNIV
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Problems solved by technology

[0003] Villages and towns in southern my country are generally built along both sides of the river. Residents on both sides use the river as a pond for domestic water. The sewage generated by family life is discharged into the river nearby, which makes it very difficult to build sewage collection pipe networks and sewage collection systems in villages and towns. This is also a major reason why it is difficult to implement sewage treatment in villages and towns in water network areas.

Method used

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  • Method for treating sewage and ecologically restoring water environment of villages and small towns in water network region
  • Method for treating sewage and ecologically restoring water environment of villages and small towns in water network region
  • Method for treating sewage and ecologically restoring water environment of villages and small towns in water network region

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Effect test

Embodiment 1

[0023] The average width of the riverbank B=14 meters, the average water depth is 2.5 meters, in the downstream section of the riverbank, along the direction of the river, the section of the riverbank is divided into the length R of the aquatic plant purification ditch I section 1 1 =150m, the length R of the riverside in-situ oxygenation section 2 2 = 40m, the length R of the biofilm system section of the artificial aquatic grass carrier 3 = 50m, the length R of the 4th section of the aquatic plant purification ditch II 4 = 100m, the length R of section 5 of the ecological revetment and riverside irrigation and drainage system 5 =200m. The ecological revetment uses round wooden piles 8 for engineering geological revetment. The round wooden piles 8 with a length of 1m and a diameter of 200mm are arranged at a distance of 300mm×300mm, and canna and shrubs are planted on the shore. After the sewage flows through the above-mentioned unit treatment sections in sequence, the fin...

Embodiment 2

[0025] River average width B=12 meters, average water depth 2.4 meters, along the river direction, the river section is divided into the length R of aquatic plant purification ditch I section 1 1 =300m, the length R of the riverside in-situ oxygenation section 2 2 = 12m, the length R of the biofilm system section of the artificial aquatic grass carrier 3 = 20m, the length R of the 4 sections of the aquatic plant purification ditch II 4 = 250 meters, the length R of section 5 of the ecological revetment and riverside irrigation and drainage water diversion system5 =180m. The ecological revetment uses round wooden piles 8 for engineering geological revetment. The round wooden piles 8 with a length of 1m and a diameter of 200mm are arranged at a distance of 300mm×300mm, and canna and shrubs are planted on the shore. After the sewage flows through the above-mentioned unit treatment sections in sequence, the final sluice section 6 can discharge a total of 570m including agricultu...

Embodiment 3

[0027] The average width of the riverbank is B=10 meters, and the average water depth is 2.0 meters. Along the river direction, the river section is divided into aquatic plant purification ditch I section 1. The length of section 1 is R 1 = 40m, the length R of the riverside in-situ oxygenation section 2 2 = 10m, the length R of the biofilm system section of the artificial aquatic grass carrier 3 = 20m, the length R of the 4 sections of the aquatic plant purification ditch II 4 = 40 meters, the length of section 5 of the ecological revetment and riverside irrigation and drainage water diversion system is R 5 =140m. The ecological revetment uses round wooden piles 8 for engineering geological revetment. The round wooden piles 8 with a length of 1m and a diameter of 200mm are arranged at a distance of 300mm×300mm, and canna and shrubs are planted on the shore. Sewage flows through the above-mentioned unit treatment sections in sequence, and finally through the adjustment slui...

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Abstract

The invention discloses a method for treating sewage and ecologically restoring water environment of villages and small towns in a water network region. The method comprises the following steps of: partitioning a slow-flow pollutant loading creek of which the width B is between 6 and 14 meters into six different continuous sections, namely, an aquatic plant purification ditch section I of which the length R1 is between 40 and 150 meters, a creek in-situ oxygenation section of which the length R2 is between 15 and 40 meters, an artificial waterweed carrier biological film system section of which the length R3 is between 10 and 50 meters, an aquatic plant purification ditch section II of which the length R4 is between 20 and 250 meters, an ecological embankment and irrigation and stagnant water drainage water transfer system section of which the length R5 is between 80 and 200 meters and a water gate adjusting section which serve as a sewage treatment unit; and reforming the conventional waste slow-flow pollutant loading creek so as to turn the pollutant loading creek into a sewage treatment facility for the villages and small towns. The method has the advantages of realizing sewage treatment and ecological restoration of the water environment of the villages and small towns, saving land resource and using recycled waste water for cultivating and irrigating, along with small investment, convenient management and maintenance and low running cost.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to sewage treatment in villages and towns and ecological restoration of rural water environment. Background technique [0002] In the Jiangnan water network area, people customarily call small rivers (or small artificial canals) that are not mainly used for navigation but are closely related to agricultural production and people's daily life as "rivers". Due to the improvement of rural urbanization level in recent years, the rapid development of village and town economy, the rapid development of village and town industry, large-scale and high-efficiency agriculture and water plant aquaculture, the discharge of industrial sewage, domestic wastewater, aquaculture and agriculture has increased sharply, resulting in a large amount of nitrogen, phosphorus, Pollutants such as COD are discharged into the riverbanks around the villages and towns, causing the riverbanks ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/14C02F3/32
CPCY02W10/10
Inventor 张文艺王立岩闫刚李定龙姚立荣张千峰
Owner CHANGZHOU UNIV
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