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

Desulfurization-high temperature biological deodorization method for foul smell waste gas produced by sludge treatment

A sludge disposal and odor technology, applied in separation methods, chemical instruments and methods, air quality improvement and other directions, can solve problems such as odor disturbing people, and achieve the effects of no investment and operation cost, low investment and operation cost, and easy operation.

Inactive Publication Date: 2011-02-02
SUN YAT SEN UNIV
View PDF1 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Desulfurization-biological deodorization technology has multiple functions. One system solves the discharge of pollutants such as odor, sulfur dioxide, nitrogen oxides and other pollutants in sludge disposal and drying waste gas. , Nitrogen oxide emission standards, which is in line with the clean production, energy saving and emission reduction promoted by the state, and reflects the corporate social responsibility

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1: Biological treatment of sludge disposal and drying of malodorous waste gas

[0015] Ammonia, hydrogen sulfide, methyl mercaptan (CH 3 SH), HCl, SO 2 , NO x and other complex inorganic and organic odorous gases, which are characterized by: complex composition, sulfur dioxide (SO 2 ) concentration is higher (1500mg / m 3 ), nitrogen oxides (NO x ) concentration is higher (500 ~ 700mg / m 3 ), the odor concentration is 4170, the exhaust gas oxygen content is low (<5%), the exhaust gas temperature is high (110°C), and the odor concentration is high. Wet desulfurization - high temperature biological treatment sludge treatment and drying odorous waste gas demonstration project long-term operation stability investigation, during which it showed good operation stability, biological deodorization can be stabilized at 90%, and desulfurization efficiency can reach more than 98% , The denitrification efficiency can reach 60%.

Embodiment 2

[0016] Example Two: Biological Treatment of Sludge Disposal of Incineration Odor Waste Gas

[0017] According to sludge drying and incineration, malodorous waste gas is produced, and its components include sulfur dioxide, nitrogen oxides, particulate matter, acid gas (HCl, HF), malodorous organic matter and heavy metal smoke. The malodorous exhaust gas is treated by wet desulfurization-high temperature biological method, the biological deodorization efficiency can be stabilized at 90%, the desulfurization efficiency can reach more than 95%, and the denitrification efficiency can reach 50%.

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 relates to a desulfurization-high temperature biological deodorization method for foul smell waste gas produced by sludge treatment. The method is a novel technical method assorted with cyclic economy and comprehensive utilization of a sludge resource. The foul smell waste gas is treated by a process which combines wet desulphurization with biological treatment and the wet desulphurization and temperature lowering are performed to construct a high-temperature and high-efficiency biological bacterial community micro-ecosystem for treating the foul smell waste gas into a nontoxic and harmless substance by continuous aerobic degradation. The method plays an important role in eliminating the technical bottlenecks of the disturbance of the foul smell waste gas produced in a waste heat drying / burning process during the sludge treatment and the application of the sludge treatment, facilitating the technical popularization of sludge drying and sludge burning during waste heat treatment and achieving extremely significant environmental benefit and social benefit. A desulphurization-biological treatment system can realize up-to-standard emission of pollutants such as foul smell drying / burning waste gas, sulfur dioxide, nitrogen oxide and the like produced by the sludge treatment, has the advantages of high waste gas purification efficiency, high device running stability, low running cost, no secondary pollution and the like and is simple and convenient to operate.

Description

technical field [0001] The invention relates to a desulfurization-high-temperature biological deodorization method for sludge treatment of malodorous waste gas, which belongs to the technical field of environmental protection. technical background [0002] Sludge has become one of the important environmental problems affecting the development of cities in our country. The treatment and disposal of sludge from urban sewage treatment plants has attracted great attention in the industry, and it is also a challenge faced by all countries in the world. In 2008, my country put into operation 1,529 urban sewage treatment plants, with a treated sewage volume of 23.3 billion m 3 Compared with the initial period of the "Tenth Five-Year Plan", the amount is about doubled, and about 16 million tons of sludge with a moisture content of 80% are produced, and the annual growth rate is more than 10%. [0003] At present, sludge disposal mainly adopts sanitary landfill, composting, drying,...

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): B01D53/50B01D53/75B01D53/84B01D53/80
CPCY02A50/20
Inventor 魏在山孙建良
Owner SUN YAT SEN 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