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System for deeply treating sewage in rural areas

A technology for advanced treatment and sewage, which is applied in water/sewage treatment, biological water/sewage treatment, light water/sewage treatment, etc. It can solve the problem of no effective method for sewage treatment, achieve convenient management, simple process conditions, reduce wasteful effect

Active Publication Date: 2015-04-08
YUNNAN SHENGQING ENVIRONMENTAL PROTECTION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, at present, there are basically no effective methods for sewage treatment in rural areas.

Method used

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  • System for deeply treating sewage in rural areas

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Effect test

Embodiment 1

[0015] An advanced sewage treatment system in rural areas, the system includes grid equipment, buffer adjustment tanks, sedimentation tanks, aeration tanks, wetland ponds, membrane bioreactor tanks, sand filters, advanced oxidation tanks, storage tanks, irrigation Use water storage wells and equipment rooms; sewage flows into the water inlet of the grille equipment through pipeline connections. The grille equipment uses two sets of grilles, set coarse grilles and fine The grid gap is 10mm, and the fine grid gap is 2mm. The water outlet of the grid equipment is connected to the water inlet of the buffer adjustment tank through the pipeline, the water outlet of the buffer adjustment tank is connected to the water inlet of the sedimentation tank through the pipeline, and the water outlet of the sedimentation tank is connected to the water inlet of the aeration tank through the pipeline, and the water flow in the pool stays The time is 10-20 minutes, the bottom of the aeration tan...

Embodiment 2

[0017] An advanced sewage treatment system in rural areas, the system includes grid equipment, buffer adjustment tanks, sedimentation tanks, aeration tanks, wetland ponds, membrane bioreactor tanks, sand filters, advanced oxidation tanks, storage tanks, irrigation Use water storage wells and equipment rooms; sewage flows into the water inlet of the grille equipment through pipeline connections. The grille equipment uses two sets of grilles, set coarse grilles and fine The grid gap is 10mm, and the fine grid gap is 2mm. The water outlet of the grid equipment is connected to the water inlet of the buffer adjustment tank through the pipeline, the water outlet of the buffer adjustment tank is connected to the water inlet of the sedimentation tank through the pipeline, and the water outlet of the sedimentation tank is connected to the water inlet of the aeration tank through the pipeline, and the water flow in the pool stays The time is 10-20min. Aeration holes are set at the botto...

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Abstract

The invention provides a system for deeply treating sewage in rural areas. The system comprises a grille device, a buffer adjusting tank, a sedimentation tank, an aeration tank, a wetland pond, a membrane bioreactor, a sand filter, an advanced oxidation tank, a water storage tank, an accident tank, an observation well, a device room and the like. Compared with the prior art, the treatment system has the advantages that the removal capability of pollutants is significantly increased, the removal rate of COD reaches above 97%, the removal rate of SS reaches above 99% and the removal rate of petroleum and animal and vegetable oil reaches above 99%. The membrane bioreactor is a PVDF curtain type hollow fiber filtration membrane. Mixed soil prepared by mixing sandy soil, straws, bentonite and iron scrap is selected in the wetland pond. The entire system is operated by a programmable logic controller and thus the automatic control of the switching of a water pump is achieved. The treated domestic sewage can be used as reclaimed water in landscape, toilet flushing and the like.

Description

technical field [0001] The invention relates to a treatment system for deep sewage in rural areas, which belongs to the field of water treatment in environmental protection. Background technique [0002] China's per capita water resources are small and the spatial distribution is uneven. At the same time, China is a large agricultural country. Most of the country's land area is in rural areas, and the agricultural population accounts for more than half of the country's population. Therefore, the amount of sewage discharged by production and life in rural areas in our country is huge. However, the development of rural areas in my country is relatively backward, and the technical conditions are limited. Most of the sewage is directly discharged into lakes and rivers or used for land infiltration irrigation, resulting in large-scale pollution of water bodies and soils in rural areas. And it has also caused a large amount of waste of water resources, which has caused the shorta...

Claims

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Application Information

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IPC IPC(8): C02F9/14
CPCC02F1/32C02F1/36C02F1/725C02F1/78C02F3/00C02F3/32C02F9/00C02F2201/32C02F2301/08C02F2305/023C02F2305/10
Inventor 李程伟
Owner YUNNAN SHENGQING ENVIRONMENTAL PROTECTION TECH CO LTD