Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Device and method for simultaneously realizing urban sewage treatment and excess sludge reduction

A technology for urban sewage and excess sludge, applied in biological water/sewage treatment, water/sludge/sewage treatment, biological sludge treatment, etc., can solve the problem of inability to remove ammonia nitrogen, reduce consumption and solve excess sludge The effect of large output and solving the shortage of carbon source for denitrification

Pending Publication Date: 2021-10-22
QINGDAO UNIV
View PDF5 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the ammonia nitrogen produced cannot be removed only by sludge fermentation

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
  • Device and method for simultaneously realizing urban sewage treatment and excess sludge reduction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0026] The structure of the device that realizes urban sewage treatment and excess sludge reduction at the same time as described in this example is as follows: figure 1 As shown, the process of synchronous short-range denitrification and anaerobic ammonium oxidation treatment of urban sewage by sludge fermentation and reduction of excess sludge, including urban sewage raw water tank 1, full nitrification SBR reactor 2, first intermediate tank 3, sludge Tank 4, sludge fermentation and short-range denitrification integrated SFPD reactor 5, sludge storage tank 6, second intermediate water tank 7, anaerobic ammonium oxidation UASB reactor 8 and effluent water tank 9; urban sewage raw water tank 1 passes through the first inlet The water pump 2.1 is connected with the whole nitrification SBR reactor 2; the air pump 2.6 is connected with the whole nitrification SBR reactor 2; the whole nitrification SBR reactor 2 is connected with the first intermediate water tank 3 through the firs...

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 invention belongs to the technical field of biological sewage treatment, and relates to a device and a method for simultaneously realizing urban sewage treatment and excess sludge reduction. According to the invention, sludge fermentation is combined with short-cut denitrification and anaerobic ammonia oxidation, short-cut denitrification is used for reducing nitrate nitrogen into nitrite nitrogen by using short-chain fatty acid generated by sludge fermentation, and ammonia nitrogen generated by fermentation is used as a reaction substrate of anaerobic ammonia oxidation for deep denitrification; and thus, efficient, energy-saving and stable denitrification is carried out on urban sewage under the condition that no additional carbon source is added, organic matters in the sludge are recycled, and the sludge is reduced.

Description

Technical field: [0001] The invention belongs to the technical field of sewage biological treatment, and relates to a device and method for realizing urban sewage treatment and excess sludge reduction at the same time, using sludge fermentation synchronous short-range denitrification and anaerobic ammonium oxidation to treat urban sewage and realize excess sludge reduction quantity. Background technique: [0002] With the acceleration of urbanization and the continuous increase of urban population, the amount of urban sewage discharge is increasing year by year. According to statistics, as of the end of January 2020, the number of sewage treatment plants in my country has reached more than 10,000, and the sewage treatment capacity in 2019 increased by 180 million tons per day compared with 2018. During the operation of the sewage treatment process, part of the sludge produced by the process is refluxed as the reactant of the biological reaction, while the remaining sludge i...

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 Applications(China)
IPC IPC(8): C02F3/30C02F11/04C02F101/16
CPCC02F3/302C02F11/04C02F2101/16C02F2303/06
Inventor 王晓霞李天琦赵骥于德爽
Owner QINGDAO UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com