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

Device and method for improving municipal sludge dewaterability through microbial cracking reaction

A municipal sludge and pyrolysis reaction technology, applied in biological sludge treatment, dewatering/drying/concentrating sludge treatment, etc., can solve the problems of reducing comprehensive disposal costs and high moisture content of mud cakes, achieving low human control requirements and running The effect of low cost and saving operation cost

Pending Publication Date: 2017-08-18
杭州源茁环保科技有限公司
View PDF8 Cites 3 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method does not use chemical flocculants or any other agents, does not cause secondary pollution, can meet the sludge cracking requirements when the moisture content of dewatered sludge is reduced to below 60%, and can effectively solve the problem of high moisture content of mud cake. It can reduce the cost of cracking pretreatment and reduce the cost of comprehensive disposal

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 improving municipal sludge dewaterability through microbial cracking reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Embodiment 1: see figure 1 , a device for improving the dewatering performance of municipal sludge through microbial cracking reaction, characterized in that the device includes a reaction tank 3, a control room 12, an oxygen tank 4 and a mechanical dehydrator 5, and a stirring device is arranged in the reaction tank 6 and a heating machine 7, the stirring is arranged above the reaction tank, and the stirring device is close to the bottom of the reaction tank, so that the sludge and the bacteriophage type bacterial liquid are fully mixed in the reaction tank; the heating machine is arranged at the bottom of the reaction tank, The inside of the reaction tank can be within a certain temperature range; the front end of the reaction tank is provided with a sludge inlet, which is connected to the sludge outlet of the previous sludge concentration tank; the rear end of the reaction tank is provided with a sludge outlet, which is connected with the subsequent The sludge inlet ...

Embodiment 2

[0040] Example 2: see figure 1 A method for improving the dewatering performance of municipal sludge by biolysis, the method comprising the following steps:

[0041] 1) Preparation of phage-type bacteria liquid, centrifuge and resuspend the cultured phage-type bacteria, so that the concentration range is 10 3 —10 6 pfu / mL or use the prepared phage-type bacterial solid bacterial agent to activate and make the concentration range within 10 3 —10 6 pfu / mL;

[0042] 2) Discharge the sludge into the reaction tank for stirring pretreatment. The second industrial controller controls the opening of the sludge pump on the sludge delivery pipeline and the start-up of the bacterial liquid dosing machine. The concentrated sludge enters the reaction tank and neutralizes the bacteria Phage-type bacteria are mixed and stirred at a stirring speed of 30-150r / min, so that the final concentration of phage-type bacteria in the sludge is 10 2 —10 5 pfu / mL;

[0043] 3) Carry out cracking tre...

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 device and a method for improving municipal sludge dewaterability through a microbial cracking reaction. The device comprises a reaction tank, a control chamber, an oxygen tank and a mechanical dewaterer, wherein a stirring device and a heater are arranged in the reaction tank, the stirring device is arranged at the upper part of the reaction tank and close to the bottom of the reaction tank, and sludge and a phagocytic bacterial liquid are mixed sufficiently in the reaction tank; the heater is arranged at the bottom of the reaction tank and enables inside of the reaction tank to be in a certain temperature range; a sludge inlet is formed in the front end of the reaction tank and connected with a sludge outlet of a previous sludge thickener; a sludge outlet is formed in the rear end of the reaction tank and connected with a sludge inlet of the later mechanical dewaterer; a bacterial liquid inlet is further formed in the front end of the reaction tank and connected with a previous bacterial liquid feeder; an oxygen outlet of the oxygen tank is connected with the reaction tank, and the oxygen tank is used for regulating dissolved oxygen; the mechanical dewaterer is started to mechanically dewater treated sludge after receiving a signal.

Description

technical field [0001] The invention relates to a device, in particular to a device for improving the dewatering performance of municipal sludge through microbial cracking reaction, and belongs to the technical field of municipal sewage treatment. Background technique [0002] In recent years, with the development of my country's economy and the acceleration of urbanization, the generation and treatment of urban sewage have increased year by year, resulting in a rapid increase in the production of excess sludge associated with sewage treatment plants. The treatment and disposal of sludge has become a worldwide social and environmental problem. [0003] The water content of the remaining sludge produced by the sewage treatment plant is generally more than 95%. The sludge has a high water content and is not easy to be dehydrated. A large amount of intracellular water and bound water in the sludge are difficult to be released by mechanical means. At present, simple mechanical ...

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): C02F11/02C02F11/12
CPCC02F11/02C02F11/12
Inventor 余冉高磊杨安康陈舟凯陈功段海昕王文强杨诗月杨栋
Owner 杭州源茁环保科技有限公司
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