Unlock instant, AI-driven research and patent intelligence for your innovation.

Filter method and apparatus for highly effective coagulation suspending layer

A suspension layer and coagulation technology, applied in the direction of filtration separation, separation method, filtration circuit, etc., can solve the problems of low underflow concentration, high feeding requirements, and increased difficulty in sludge treatment, so as to achieve low dosage of chemicals and ensure stability , the effect of stabilizing physical adsorption and electrochemical adsorption performance

Inactive Publication Date: 2008-10-01
株洲稳泰电气有限公司
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0010] 1. The principle is single and can only be used for filtering;
[0011] 2. It occupies a large area, and the traditional coagulation process needs to build a separate reaction tank and sedimentation tank;
[0012] 3. The requirements for feeding materials are high, and only water with low turbidity (less than 50mg / l) can be processed;
[0013] 4. A complete set of backwashing device is required, and there is a phenomenon that the filter material is not washed thoroughly;
[0014] 5. The concentration of the underflow is low, which increases the difficulty of the subsequent treatment of sludge

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
  • Filter method and apparatus for highly effective coagulation suspending layer

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0035] Mix 100 liters of coagulant such as polyacrylamide with a concentration of 25mg / 1 and 20M sewage with a particle concentration of 1 gram / liter 3 Enter the coagulation reaction chamber 2 respectively through the dosing pipe 28 and the sewage water inlet pipe 1, the starter motor and its reducer 29 drive the stirring shaft 3 and the blade 5 to rotate, and the speed is adjusted to 400 rpm, so that the coagulant and sewage The suspended particles in the tank are fully contacted to form floc suspensions, and the sewage containing such floc suspensions passes through the secondary flow generator 6 to generate a secondary flow, so that the floc suspensions form large particle flocs in the settling chamber 7. The sewage flows into the reflecting cone 9 through the floc collecting cone 8, and the floc aggregates in it are reflected to the surroundings by the reflecting plate 10, and a part of them enters the conical concentrating chamber 12 to be concentrated and then discharged,...

example 2

[0037] The concentration of particles in the sewage is 30 g / L, and the sewage treatment capacity is 60M 3 , the rotating speed of stirring shaft 3 is 300 rev / mins, and all the other are with example 1.

example 3

[0039] The concentration of particles in the sewage is 50 g / L, and the sewage treatment capacity is 100M 3 , the stirring shaft rotating speed is 200 rpm, and all the other are the same as example 1.

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 the filtering of a highly effective coagulation suspension, which comprises the entrance of the coagulant and sewing into the coagulation chamber with the density of the sewage of 1-50g / l, blending speed 200-400r / m, forming floc suspension which goes through is generated into secondary flow, and forms on the slanting plate big grain aggregates, sliding to the deep cone density chamber through the conical slanting plate center in sedimentation reaction, and with the big grain aggregates crushed and condensed in the density chamber and exhaust, with the water from the coagulation reaction filtered from the bottom to top through the suspension layer to further reduce the sewage level in it. The highly effective suspension layer combines the coagulation, sedimentation and filtering. It is mainly used for the treatment of high density fine grain sewage with mud.

Description

technical field [0001] The invention relates to a filtering method and device, in particular to a high-efficiency coagulation suspension layer filtering method and device for treating various sewage containing high-concentration fine particles. Background technique [0002] In recent years, with the acceleration of urban industrialization, the contradiction of water shortage has become increasingly prominent, and the issue of water pollution control has become more and more important. [0003] In wastewater treatment, all kinds of wastewater are dispersed systems with water as the medium. According to the particle size of the dispersed phase, the sewage can be divided into three categories: the particle size of the dispersed phase is 0.1-1nm, which is called a true solution; the particle size of the dispersed phase is 1-100nm, which is called a colloidal solution; and the particle size of the dispersed phase is greater than 100nm, which is called a suspension. Among them, t...

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 Patents(China)
IPC IPC(8): B01D36/04B01D37/03
Inventor 湛含辉龙小兵陆振荣彭春徕张晶晶
Owner 株洲稳泰电气有限公司