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Small town sewage reuse treatment technology

A technology for domestic sewage and small towns, applied in the direction of aerobic and anaerobic process treatment, etc., can solve the problems of unsuitable water temperature and COD concentration changes in domestic sewage treatment, and achieve the realization of resource utilization, high reactivity and long service life. Effect

Inactive Publication Date: 2009-03-18
王强 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Practice has proved that this process and equipment are not suitable for domestic sewage treatment in small towns with small water volume, large changes in water temperature and COD concentration, and small government economic strength.

Method used

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  • Small town sewage reuse treatment technology

Examples

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Effect test

Embodiment 1

[0017] Example 1: Treatment of Domestic Sewage in Small Towns

[0018] According to the main equipment and process operation described in the manual, the combined system of upflow anaerobic sludge bed reactor (UASB) and aerobic granular sludge membrane bioreactor (GMBR) is used to treat domestic sewage, and the influent COD concentration is 500mg / L, NH 3 -N concentration is 35mg / L, COD concentration in anaerobic UASB effluent is 180mg / L, GMBR effluent COD concentration is about 10mg / L, BOD 5 It is 4mg / L. The whole system enters water, and the water exits NH 3 -N concentration < 1mg / L, SS is 0mg / L (not detected), effluent turbidity < 1NUT, effluent color is stable below 20 times, and total coliforms are 0 / L (not detected).

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Abstract

Urban sewage becomes a key factor of water pollution in China. The existing treatment technology is not suitable for the treatment of domestic sewage of a small town with comparatively small water quantity, great changes in water temperature and COD concentration and small economic strength of government. A treatment technology for the domestic sewage of the small town, provided by the invention, is applicable to the treatment of the domestic sewage of the small town, can efficiently eliminate organic pollutants as well as nitrogen and phosphorus and has short residence time. A treatment system has small floor space and low energy consumption and wastewater after treatment can be directly used as reclaimed water. Bioenergy-methane can be generated during the treatment, thereby realizing the reclamation of the urban sewage.

Description

technical field [0001] The invention relates to a treatment technology suitable for the reuse of domestic sewage in small towns, which belongs to the technical field of waste water treatment. Specifically, it is a small town domestic sewage reuse treatment technology with anaerobic reactor and aerobic granular sludge membrane bioreactor as the core. Background technique [0002] With the rapid development of the economy and the continuous growth of the population, the situation of water pollution in my country is becoming increasingly severe. Water pollution has had serious consequences. First of all, it directly threatens and affects people's health and life safety. The drinking water sources of 90% of my country's cities and towns have been polluted to varying degrees, and the incidences of cancer, disability, strange diseases and death in heavily polluted areas are significantly higher than in other areas. Secondly, water pollution has exacerbated my country's water re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/30
Inventor 邹华王强
Owner 王强
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