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A water treatment system for decentralized sewage treatment in villages and towns

A water treatment system and sewage treatment technology, applied in the directions of water/sewage multi-stage treatment, water/sludge/sewage treatment, chemical instruments and methods, etc., can solve the lagging development and application of decentralized sewage treatment technology, and relatively limited application Many problems, complex operation and maintenance, etc., to achieve the effect of less sludge production, long biological food chain, and high oxygen utilization efficiency

Active Publication Date: 2016-06-01
SCIMEE TECH & SCI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These traditional crafts have large investment costs, high operating costs, and complicated operation and maintenance. There are many restrictions on the application in small towns and rural areas, and it is difficult to promote them.
At present, according to the social and economic development and management level of villages and towns in my country, the development and application of decentralized sewage treatment technology with the characteristics of sewage water quality and quantity are still lagging behind, and cannot meet the needs of my country's new rural construction

Method used

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  • A water treatment system for decentralized sewage treatment in villages and towns
  • A water treatment system for decentralized sewage treatment in villages and towns
  • A water treatment system for decentralized sewage treatment in villages and towns

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Embodiment

[0035] A farmer settlement in Chengdu has a population of 1012, and the daily domestic sewage discharge is about 210m 3 , the main indicators of domestic sewage water quality are: COD is 251.2mg / L, ammonia nitrogen is 29.5mg / L, SS is 92.7mg / L, and total phosphorus is 4.9mg / L. The treatment system is used for treatment, the mechanical grid with a grid size of 0.01m is selected, the hydraulic retention time of the pre-conditioning pool is 7h, the hydraulic retention time of the biofilm treatment equipment is 1.5h, and the post-treatment is a fixed biological bed plus ozone sterilization form. After being processed by the treatment system of the present invention, the average indicators of the effluent: COD is 45.6mg / L, ammonia nitrogen is 8.7mg / L, suspended matter is 6.9mg / L, and total phosphorus is 0.32mg / L. Treatment Plant Pollutant Discharge Standard "GB18918-2002 Grade A standard, part of the effluent is reused for internal greening and road cleaning in settlements, and par...

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Abstract

The invention relates to the field of sewage treatment, in particular to a water treatment system for decentralized sewage treatment in villages and towns. A water treatment system for decentralized sewage treatment in villages and towns, the system includes: a pretreatment system, an automatic oxygenation type bio-transfer film treatment device, and an advanced treatment system; the pretreatment system is sequentially connected by a grid and a preconditioning tank Composition; the automatic oxygenation type biological transfer film treatment device; the advanced treatment system is formed by connecting a fixed biological bed and a disinfection pool. The distributed sewage treatment system has strong adaptability and is widely applicable to scattered point sources of sewage in various places.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a water treatment system for decentralized sewage treatment in villages and towns. Background technique [0002] With the development of economy and society, the improvement of people's living standards and the change of lifestyle, the discharge of domestic sewage in small towns and rural areas in China presents a development trend of large and concentrated discharge. Domestic sewage in small towns and rural areas has become one of the main pollution sources of water bodies in various river basins. However, the water pollution control work in villages and towns is still in its infancy. The investment in water pollution control in villages and towns is low, the treatment rate of domestic sewage is low, and there are many domestic sewage Directly discharged without treatment, resulting in serious water pollution. [0003] Decentralized sewage treatment has been widely developed and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14
Inventor 肖波易洋王吉白胡尚英
Owner SCIMEE TECH & SCI CO LTD
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