Unlock instant, AI-driven research and patent intelligence for your innovation.

Method and system for treating urban sewage using fly ash

A technology of urban domestic sewage and fly ash, applied in the direction of adsorption water/sewage treatment, etc., can solve the problems of poor water quality of ash flushing and drainage, waste of high-quality water resources, etc., and achieve the effect of reducing water consumption and pollution for power generation

Inactive Publication Date: 2006-04-26
ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Circulating cooling water usually uses river water or groundwater, and the water quality is good, but after being used for washing ash, due to the dissolution of calcium oxide and other substances in the ash, the water quality of the ash washing and drainage will deteriorate. This method obviously wastes high-quality water. water resources

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method and system for treating urban sewage using fly ash

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] In this embodiment, the method of treating urban domestic sewage with fly ash is to use the collected urban domestic sewage as the water source to carry out hydraulic flushing and transportation of the fly ash formed after the combustion of coal in the thermal power plant, and the transported Fly ash is injected into the ash yard together with urban domestic sewage.

[0020] In specific implementation, the ash-water ratio of the ash flushing water is designed according to the requirements of the power plant. The water consumption for flushing ash in the power plants built in the early stage is generally relatively large, and the ratio of ash to water is usually greater than 1:10, and some are as high as 1:20. The water consumption for flushing ash in newly built power plants has been reduced, and some of the ash-water ratios have fallen within 1:5.

[0021] Referring to the accompanying drawings, in this embodiment, the system for treating urban domestic sewage with fl...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The method and system for treating city domestic sewage with flyash features that collected city domestic sewage is utilized as water source for hydraulic flushing and conveying of flyash produced in burning coal in thermoelectric power station, so that flyash and city domestic sewage are infused into flyash yard. The present invention can reduce clear water consumption of thermoelectric power station greatly and treat city domestic sewage effectively.

Description

Technical field: [0001] The invention relates to a treatment method for urban domestic sewage. Background technique: [0002] The urban sewage treatment system is one of the most important infrastructures in the city. Its development level directly affects the health of the city residents and the improvement of the quality of life. It is of great significance to the improvement of the urban investment environment and the sustainable development of the social economy. . [0003] There are more organic matter and phosphorus-containing compounds (such as washing powder) in urban domestic sewage, and the pH value is usually not high. If it is directly discharged into the water body without effective treatment, it will cause eutrophication of the water body and affect the growth of aquatic organisms or fish. [0004] Thermal power plants use coal as fuel, which forms fly ash after burning. The ash content of general industrial coal accounts for more than 30% of the total weigh...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): C02F1/28
Inventor 赵治华郑敏聪赵炜张淑娟
Owner ELECTRIC POWER RES INST OF STATE GRID ANHUI ELECTRIC POWER
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com