Sullage solidifying method

A solidification method and sludge technology, applied in the field of sludge solidification, can solve problems such as encroachment on farmland, poor physical and mechanical properties, adverse environmental effects, etc., and achieve the effects of improving strength, obvious economic benefits and social benefits

Inactive Publication Date: 2008-07-16
SOUTHEAST UNIV
View PDF0 Cites 47 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in the eastern area where the river network is dense, due to the siltation of the river channel, the river bed is platformed, and the navigability is affected. It is often necessary to dredge the channel. After dredging, a larg

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

[0011] The silt solidification method of the invention can quickly solidify the silt so that it can be used as embankment filling soil for road engineering. This technology not only solves the problem of soil for highway construction, but also enables the utilization of silt as a resource, better protects cultivated land, and has good sustainable development characteristics. In a round of environmental improvement, river dredging is an important part. In addition, the navigable capacity of the river bed and platform is reduced. River dredging is the only option. However, after dredging, a large amount of silt must be piled up in an open space, which will not only cause environmental pollution, but also occupy a lot of land. . Embankment filling in expressway construction needs to use a large amount of clay + a certain proportion of lime mixed for layered rolling, and to meet certain compaction requirements. With the rapid development of the economy, the 4-lane in the early pe...

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 sludge solidification method is a method for carrying out solidification treatment to the sludge produced in water conservancy projects and civil engineering. The method is that: a. the liquid water content, the clay content and organic content of dredging sludge are tested. b. curing agent is prepared: the curing agent mainly contains cement and calcium oxide which play the function of solidification; wherein, the weight proportion is between 1 : 1 to 4 : 1; waste gypsum is used as water reducing agent which occupies 1 to 8 percent of the sum of cement and calcium oxide in proportion; mealy sand or pulverized fuel ash are used as concrete aggregate which occupies 3 to 5 percent of the sum of the cement and calcium oxide in proportion; c. the curing agent-mixing ratio which is usually controlled from 5 to 20 percent is determined; sampling respectively is carried out, setting time is tested and the unconfined compressive strength which maintains 7, 14 and 28 days is tested by sampling, and the curing agent-mixing ratio finally is determined according to optimal performance price ratio; d. the sludge is carried out curing and constructing in site; mechanical devices are used for stirring the curing agent and the sludge rapidly and evenly, thereby leading the solidification to be rapid and full.

Description

technical field [0001] The invention relates to a silt solidification method for embankment filling soil used in road engineering, and belongs to the technical field of solidification treatment of silt produced in water conservancy engineering and civil engineering. Background technique [0002] In the construction of expressways, it is often necessary to requisition a large amount of farmland and use high-quality clay for embankment filling, which forms a pair of contradictions with the shortage of land resources. At the same time, a large amount of silt dredged from water conservancy channels needs to requisition a large area of ​​open space for stacking. Due to its poor physical and mechanical properties, the silt dredged from the river channel cannot be directly used for other purposes, and the land has been occupied for a long time. [0003] In the construction of highways and first- and second-level highways, a large amount of clay is used as embankment filling materia...

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): E02D3/12E01C3/04
CPCC04B2103/302C04B40/0039C04B28/02Y02W30/91C04B7/02C04B14/02C04B22/064C04B22/145C04B14/06C04B18/08C04B18/0436
Inventor 缪林昌钟建池冯兆祥吉林夏国星林飞陈策吕伟华李晶张继周
Owner SOUTHEAST 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