Supercharge Your Innovation With Domain-Expert AI Agents!

A sewage treatment method based on Fenton sludge returning

A sewage treatment method and sludge reflux technology, applied in the direction of aerobic process treatment, sustainable biological treatment, etc., can solve the problems of iron salt waste in sludge, increase sludge treatment costs, etc., and achieve the effect of reducing treatment costs

Active Publication Date: 2014-07-23
TSINGHUA UNIV
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The Fenton method produces sludge containing iron salts while treating sewage. This part of the sludge is treated and disposed of as surplus sludge. On the one hand, it causes waste of iron salts in the sludge, and on the other hand, it increases the cost of sludge treatment.

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
  • A sewage treatment method based on Fenton sludge returning
  • A sewage treatment method based on Fenton sludge returning
  • A sewage treatment method based on Fenton sludge returning

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0015] The implementation of the present invention will be described in detail below in conjunction with the drawings and examples.

[0016] Such as figure 1 As shown, the traditional Fenton method of sewage treatment is to deposit the sewage to be treated in the primary sedimentation tank, then hydrolyze it in the hydrolysis tank, then degrade it under the action of microorganisms in the biological reaction tank, and then carry out secondary precipitation in the secondary sedimentation tank, and then Enter the Fenton reaction tank for reaction, and finally pass through the sedimentation tank to settle and then effluent. Among them, the sludge generated in the primary settling tank, secondary settling tank and Fenton reaction is directly sent to the sludge treatment workshop for treatment.

[0017] Such as figure 2 As shown, the sewage treatment method based on Fenton sludge reflux of the present invention is different from the prior art in that the sludge produced after th...

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

A sewage treatment method based on Fenton sludge return comprises returning sludge resulting from a Fenton reaction to the water-entering end of a primary settling tank for sewage treatment, and in the returning process successively adding concentrated sulfuric acid and a cationic polyacrylamide solution for activation treatment. According to the method of the invention, the easy settling property of the Fenton sludge because of containing iron salts is fully taken advantages of, thus improving settling efficiency of primary settling tank for contaminants, reducing the treatment load of a biological treatment tank, and reducing treatment costs.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, in particular to a sewage treatment method based on Fenton sludge reflux. Background technique [0002] With the development of environmental protection in my country, the requirements for the treatment of both domestic sewage and industrial wastewater are gradually increasing. The implementation of stricter sewage discharge standards reduces the damage of sewage to the environment on the one hand, and also contributes to the resource utilization of sewage on the other hand. The conditions are created. The improvement of sewage discharge standards puts forward higher requirements for the efficient and stable operation of sewage treatment systems. Improving the level of pretreatment, ensuring the good operation of biological treatment, and optimizing the advanced treatment process are important measures to ensure that sewage discharges meet the standards. Among them, efficient and stable ...

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
Patent Type & Authority Patents(China)
IPC IPC(8): C02F3/02
CPCY02W10/10
Inventor 胡洪营时孝磊刘晋恺
Owner TSINGHUA UNIV
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