High temperature aerobic digestion device for sludge

A high-temperature aerobic digestion and sludge technology, applied in the field of environmental engineering, can solve problems such as high energy consumption, complex system structure, maintenance and adjustment difficulties, and achieve the effects of wide application range, reduced energy consumption, and low cost

Inactive Publication Date: 2005-03-02
SHANGHAI JIAO TONG UNIV +1
View PDF0 Cites 18 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The device is round or rectangular. The sludge is refluxed and stirred by the sludge circulation system. The aeration hole of the sludge aeration pipe is set in the sludge return pipe. This structure can break up the air bubbles mixed in the sludge injection process to improve the oxygen transfer efficiency. However, the manufacturing requirements are relatively high. If the design is not proper, it will be more difficult to repair and adjust, and it may be It is

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
  • High temperature aerobic digestion device for sludge
  • High temperature aerobic digestion device for sludge

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0014] The structure of the present invention is as figure 1 , figure 2 As shown, it includes a digester 1, a sludge circulation system composed of a sludge circulation pipe 2, a sludge circulation pump 9 and a sludge flow meter 15, and a sludge circulation system composed of an aeration pipe 3, an aeration pump 16 and a gas flow meter 17. Sludge aeration system, sludge defoaming pipe 4, sludge liquid level observation pipe 11 and control valves in each pipeline, etc.

[0015] The tank body of the digester 1 is covered with thermal insulation material. The sludge inlet 10 is set on the top of the digester 1, and the sludge outlet at the bottom of the digester 1 is connected to the sludge circulation pump 9 through a sludge circulation regulating valve 8, and the sludge circulation pipe 2 connected from the sludge circulation pump 9 is conne...

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 high temperature aerobic sludge digesting apparatus has sludge circulating system comprising sludge circulating pipeline, sludge circulating bump and sludge flowmeter; sludge aerating system comprising aerating pipeline, aerating bump and gas flowmeter; and digesting pond covered with heat insulting material. The sludge jetting section of the sludge circulating pipeline is set horizontally in the bottom of the digesting pond, the aerating section of the aerating pipeline is set below the sludge jetting section, sludge defoaming pipeline is located below the gas exhausting pipeline, the gas valve of the defoaming pipeline is connected to the aerating pipeline, and liquid sludge valve is connected to the sludge circulating pipeline. The present invention has separated sludge aerating system and sludge circulating system, conventional aerating process and direct defoaming.

Description

technical field [0001] The invention relates to a high-temperature aerobic digestion device for sludge, which is used for high-temperature aerobic stable treatment of biomass sludge in sewage plants. It belongs to the field of environmental engineering technology. Background technique [0002] At present, high-temperature aerobic digestion of sludge mostly adopts two-stage or multi-stage high-temperature aerobic digestion devices, and there are also high-temperature aerobic digestion devices with single-stage design. In recent years, due to the improvement of aeration system and defoaming system, sludge in a single stage High temperature stabilization can be obtained in the single-stage high-temperature aerobic digestion unit. This improved single-stage high-temperature aerobic digestion unit is called the second-generation high-temperature aerobic digestion unit, which has been produced by Thermal Process Systems in the United States. The second-generation high-temperature...

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): C02F3/12
CPCY02W10/10
Inventor 朱南文林洁梅陈华张善发贾金平朱惟猛程洁红冯磊
Owner SHANGHAI JIAO TONG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap