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Ecological restoration system for nitrogen and phosphorus targeted cyclic utilization of rural domestic sewage

A technology for domestic sewage and ecological restoration, applied in biological water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc. The effect of landscape, stable restoration and water purification

Inactive Publication Date: 2020-12-18
安徽水韵环保股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the above-mentioned conventional treatment technologies generally have the following problems. First, the rural economic foundation is weak. The construction of sewage treatment plants or sewage treatment stations requires a large amount of infrastructure investment. At the same time, subsequent operation and maintenance is also a considerable expense. After completion, they are all in a state of "basking in the sun"; secondly, there is a lack of professional technical personnel in the countryside. The above-mentioned treatment technology requires talents with environment-related majors to operate effectively. One of the reasons; once again, rural residents are scattered, and a lot of money is wasted in building pipe networks, but it is difficult to receive sewage, resulting in high cost per ton of water treatment; lastly, on the one hand, a large amount of nitrogen and phosphorus in rural sewage are removed, and on the other hand, they are repurchased A large amount of chemical fertilizer is used to fertilize the fields, and it returns to the water body after it rains, causing a vicious cycle
It can be seen that the commonly used rural life treatment technology (construction of sewage treatment plants (stations) or integrated equipment) has caused a huge waste of resources, and cannot adapt to local conditions and meet the needs of rural life

Method used

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  • Ecological restoration system for nitrogen and phosphorus targeted cyclic utilization of rural domestic sewage
  • Ecological restoration system for nitrogen and phosphorus targeted cyclic utilization of rural domestic sewage
  • Ecological restoration system for nitrogen and phosphorus targeted cyclic utilization of rural domestic sewage

Examples

Experimental program
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Effect test

Embodiment 1

[0091] This embodiment provides an ecological restoration system for the targeted recycling of nitrogen and phosphorus in rural domestic sewage, which consists of sequentially connected collection pools, anaerobic pools, and productive wetlands; figure 1 as shown,

[0092] The population base of a certain community is 6,000 people, and the domestic sewage production is about 600 tons / day.

[0093] The volume of the collection pool is 400m 3 ; The collection pool is a long storage pool; in the collection pool, from the water inlet to 1 / 5 of the collection pool (set at 1 / 5 of the pool length), set a coarse grid 1; then from the water inlet to the collection pool 2 / 5 (set at 2 / 5 of the pool length), set fine grille 2.

[0094] The volume of the anaerobic tank is 500m 3 ; The anaerobic tank is provided with elastic filler.

[0095] Among them, the domestic sewage first enters the anaerobic pool 3 (with cloth elastic filler in the pool), and enters the productive wetland after...

Embodiment 2

[0106] This embodiment provides an ecological restoration system for the targeted recycling of nitrogen and phosphorus in rural domestic sewage, which consists of sequentially connected collection pools, anaerobic pools, and productive wetlands;

[0107] The population base of a community is 10,000, and the domestic sewage production is about 1,000 tons / day.

[0108] The volume in the collection pool is 666m 3 ;The collection pool is a long storage pool; in the collection pool, from the water inlet to 1 / 5 of the collection pool (set at 1 / 5 of the pool length), set a coarse grid (100mm); then from the water inlet to the collection pool At 2 / 5 of the pool length (set at 2 / 5 of the pool length), set a fine grid (5mm).

[0109] The volume of the anaerobic tank is 833.3m 3 ; The anaerobic tank is provided with cloth elastic filler.

[0110] Among them, the domestic sewage first enters the anaerobic pool (with elastic filler in the pool), and enters the productive wetland after s...

Embodiment 3

[0121] This embodiment provides an ecological restoration system for the targeted recycling of nitrogen and phosphorus in rural domestic sewage, which consists of sequentially connected collection pools, anaerobic pools, and productive wetlands;

[0122] The population base of a rural area is 4000, and the domestic sewage production is about 400 tons / day.

[0123] The volume in the collection pool is 266m 3 ;The collection pool is a long storage pool; in the collection pool, from the water inlet to 1 / 5 of the collection pool (set at 1 / 5 of the pool length), set a coarse grid (100mm); then from the water inlet to the collection pool At 2 / 5 of the pool length (set at 2 / 5 of the pool length), set a fine grid (5mm).

[0124] The volume of the anaerobic tank is 333m 2 ; The anaerobic tank is provided with cloth elastic filler.

[0125] Among them, the domestic sewage first enters the anaerobic pool (with elastic filler in the pool), and enters the productive wetland after stayin...

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Abstract

The invention relates to an ecological restoration system for nitrogen and phosphorus targeted cyclic utilization of rural domestic sewage. The ecological restoration system comprises a collection tank, an anaerobic tank and a production wetland which are connected in sequence, wherein the production type wetland comprises breeding or planting of clams, fishes, snails and plants, the area of the production wetland is S area = A / (180-220) *1 mu, and A is the population of the collection area. The ecological restoration system provided by the invention is a novel sewage treatment process which is suitable for rural areas, can adapt to local conditions, can be industrialized and realizes low investment, less maintenance and output.

Description

technical field [0001] The invention relates to an ecological restoration system for sewage, in particular to an ecological restoration system for targeted recycling of nitrogen and phosphorus in rural domestic sewage. Background technique [0002] With the development of urbanization and the improvement of economic level, the phenomenon of indiscriminate discharge of rural domestic sewage has become more and more serious, mainly due to the relatively scattered discharge of rural sewage and the large population, which makes it difficult to collect. It seriously threatens people's living environment and hinders the progress of ecological civilization. Rural domestic sewage contains a large amount of nutrients such as nitrogen and phosphorus, and basically does not contain industrial wastewater such as harmful heavy metals, and has good biochemical availability. At present, the commonly used treatment technology is to build sewage treatment plants (stations) or integrated equ...

Claims

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Application Information

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IPC IPC(8): C02F3/32C02F9/14C02F101/16C02F101/10
CPCC02F1/00C02F3/28C02F3/327C02F9/00C02F2101/105C02F2101/16
Inventor 占明飞袁红军宁军钱方平王伟
Owner 安徽水韵环保股份有限公司
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