Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Urban waters mud local dewatered process

A sludge and urban technology, applied in the field of sludge dehydration process, can solve the problems of sludge precipitation, long dehydration and consolidation time, large land occupation, regeneration pollution, etc., and achieve remarkable economic and social ecological benefits

Inactive Publication Date: 2006-06-28
HOHAI UNIV
View PDF0 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some use silt storage tanks for sedimentation and consolidation, but this method not only requires long-distance pipelines or tank trucks to transport silt, but also takes up a lot of land; in addition, there is also a method of dehydration and consolidation of silt in sedimentation tanks. , The dehydration and consolidation time is quite long, usually 6-9 months, and the harmful elements in the sludge seep into the ground, causing migratory secondary pollution
Due to the embarrassment of the existing sludge treatment process, some even discharge the sludge into the big rivers illegally, resulting in repeated pollution incidents

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 Construction

[0005] Use high-concentration (concentration up to about 90%, in the form of paste) sludge digging and conveying device (model YT series or and SJS series), so that the sludge can be pumped with a pump (model YT series or and SJS series) with the water content as low as possible SJS series) are transported to the on-site silt storage target to provide preconditions for efficient dehydration of sludge; the on-site silt storage target is an environmentally friendly silt storage tube bag, which is made of two specially treated anti-aging polypropylene fibers (after cooling Pulled high-strength monofilament and mesh filament with high filterability) through diamond-shaped weave (similar to the weave method of twill khaki cloth, the front side is regarded as dense and without gaps when facing the light upwards, and the pores are arranged neatly when viewed obliquely facing the light upwards) ) woven, or polyester (polyester) filament woven. It has the characteristics of high streng...

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 method for in-situ dewatering of the silt in water system of urban area includes such steps as preparing the tubular bag whose size and shape are determined by the local terrain, digging the silt from the bottom of lake or river and conveying it in said tubular bags, and laying aside for filtering the water under the action of the pressure from bag wall and the dead weight while solidifying the solid for 3-5 weeks.

Description

technical field [0001] The invention relates to a method for in-situ, environment-friendly, efficient dehydration and consolidation of sludge in urban water areas and sewage treatment plants, and belongs to the technical field of sludge dehydration technology. Background technique [0002] A large amount of pollutants enter urban rivers and lakes, and accumulate at the bottom of lakes and rivers year by year to form silt. What some adopt to the processing of silt is to focus on desilting as a project, yet it needs to solve the outlet problem of silt. Some use silt storage tanks for sedimentation and consolidation, but this method not only requires long-distance pipelines or tank trucks to transport silt, but also takes up a lot of land; in addition, there are also methods of dehydration and consolidation of silt in sedimentation tanks. 1. The dehydration and consolidation time is quite long, usually 6 to 9 months, and the harmful elements in the sludge seep into the ground,...

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): C02F11/14
Inventor 束一鸣赵坚张乃国赵晓光
Owner HOHAI 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
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