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

Method for mud fast sedimentation conditioning and solid-liquid separation

A solid-liquid separation and slurry technology, applied in sludge treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as low efficiency, achieve high efficiency, short time, and strengthen the effect of dehydration

Inactive Publication Date: 2017-04-26
SHANGHAI RES INST OF BUILDING SCI CO LTD
View PDF2 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a method for rapid mud conditioning and sedimentation solid-liquid separation, to solve the problem of low efficiency in flocculant screening and adjustment during construction, and to guide the selection of filter cloth for subsequent filter press equipment, effectively improving the mud solid Separation quality of liquid separation

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
  • Method for mud fast sedimentation conditioning and solid-liquid separation
  • Method for mud fast sedimentation conditioning and solid-liquid separation
  • Method for mud fast sedimentation conditioning and solid-liquid separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a description of a method for rapid mud conditioning and sedimentation solid-liquid separation, including the following steps:

[0026] Step 1, preparation, includes engineering mud sampling and flocculant solution preparation. The mud is selected from the groove wall mud of a construction site on Guangfu Road in Shanghai, with a moisture content of 74wt% and an initial CST value of 327.5s. Polyaluminum chloride (PAC), when used, is prepared into a solution with a concentration of 5wt%; cationic polyacrylamide (CPAM), nonionic polyacrylamide (NPAM), and anionic polyacrylamide (APAM) are prepared with a concentration of 0.1wt when used %The solution.

[0027] Step 2, dosing, adding different amounts of flocculant combinations to the mud and fully stirring to flocculate to form alum flowers.

[0028] Step 3, test, take the mud that forms alum flower and stir and carry out capillary water absorption time (CST) (model 304B, Britain Triton Electron...

Embodiment 2

[0036] This embodiment provides a description of a method for rapid mud conditioning and sedimentation solid-liquid separation, including the following steps:

[0037] Step 1, preparation, includes engineering mud sampling and flocculant solution preparation. The mud is bored pile mud at a construction site in Qiantan, Pudong, Shanghai, with a moisture content of 67wt% and an initial CST value of 404.8s. Polyaluminum chloride (PAC) is prepared into a solution with a concentration of 5wt% when used; cationic polyacrylamide (CPAM), nonionic polyacrylamide (N PAM), and anionic polyacrylamide (APAM) are prepared with a concentration of 0.1 wt% solution.

[0038] Step 2, dosing, adding different amounts of flocculant combinations to the mud and fully stirring to flocculate to form alum flowers.

[0039] Step 3, test, take the mud that forms alum flower and stir and carry out capillary water absorption time (CST) (model 304B, Britain Triton Electronics Ltd) test and laser diffract...

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 discloses a method for mud fast sedimentation conditioning and solid-liquid separation, and the method is suitable for the field of abandoned construction work mud disposal. The method of combining a capillary water absorption (CST) meter and a laser diffraction granulometer is adopted. The CST meter measures the time which water needs to permeate standard filter paper by a certain distance namely CST time, and the laser diffraction granulometer measures the mud particle size distribution range. The CTS values can visually reflect the mud dehydration effect and then determine the sedimentation conditioning performance of flocculant to facilitate screening of the optimal flocculant or combination, and the usage amount of the flocculant is best. Model selection of filter cloth is guided by the particle size distribution range, the dehydration effect of follow-up mechanical dehydration equipment is enhanced, and the dehydration efficiency is improved, which is beneficial for mud reduction. Mud fast sedimentation conditioning and solid-liquid separation are achieved by the method, and the method needs short time and has the advantages of being high in efficiency, economical, efficient and convenient.

Description

technical field [0001] The invention belongs to the technical field of waste engineering mud disposal, in particular to a method for rapid mud conditioning and sedimentation solid-liquid separation. Background technique [0002] At present, the waste mud produced by underground engineering construction in Shanghai is basically first transported to the wharf by tank trucks, and then transported by tugboats to the low-lying places in the surrounding areas for dumping. Due to the long transportation distance and special transportation vehicles, the disposal cost and transportation energy consumption are quite high. This method of treating mud as garbage only transfers the pollution without discovering the reuse value of the mud itself. The treatment method is primitive and backward with low efficiency. And land resources caused a very adverse impact. With the continuous progress of the times and the enhancement of people's awareness of environmental protection, the requiremen...

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): C02F11/14
CPCC02F11/121C02F11/14C02F2209/105
Inventor 高宇周普玉杨霞李阳
Owner SHANGHAI RES INST OF BUILDING SCI CO LTD
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