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

Aluminum-industry sludge treatment system and method

A sludge treatment and sludge technology, applied in sludge treatment, water/sludge/sewage treatment, dehydration/drying/concentrated sludge treatment, etc., to reduce operating costs, improve utilization, significant environmental benefits and economic effect of benefit

Pending Publication Date: 2018-08-24
KEDA INDUSTRIAL GROUP CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Some enterprises use the method of classified treatment to separate the sludge containing highly toxic heavy metals such as nickel and chromium from the ordinary aluminum sludge, which can reduce part of the treatment cost, but cannot solve the fundamental problem

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
  • Aluminum-industry sludge treatment system and method
  • Aluminum-industry sludge treatment system and method
  • Aluminum-industry sludge treatment system and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] This embodiment is divided into four groups of tests, the amount of No. 1 drug added is 50ml, the amount of No. 2 drug added is 54L, the amount of No. 3 drug added is 0g, 1.5g, 3g, 4.5g, and the amount of No. 4 drug added is 24L , the results obtained from the four groups of experiments are shown in the table below:

[0038] The proportion of No. 1 drug added has a significant impact on the separation time and the water content of the filter cake. The results are compared as follows:

[0039]

Embodiment 2

[0041] This embodiment is divided into three groups of tests, the addition amount of control No. 1 medicine is 0, 40ml, 50ml, 60ml respectively, the addition amount of No. 2 medicine is 54L, the addition amount of No. 3 medicine is 3g, and the addition amount of No. 4 medicine is 24L. The results of the three sets of experiments are shown in the table below:

[0042]

[0043] After adopting the above-mentioned method of the present invention to comprehensively utilize the aluminum industry sludge, the reduction rate of the sludge reaches more than 88%; the recovery rate of aluminum can reach more than 98%; Al(OH) 3 The purity of the product can reach more than 99%, and the whiteness can reach more than 96%; Al(OH) 3 The iron content in the product is only about 1‰. In addition, Al in the waste liquid after treatment 3+ Content less than 20ppm, Ca 2+ Content less than 50ppm, Fe 3+ The content is 5-10ppm, which is convenient for direct discharge or further recycling.

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

PropertyMeasurementUnit
whitenessaaaaaaaaaa
Login to View More

Abstract

The invention relates to an aluminum-industry sludge treatment system and method, aiming at a resource recycling and treatment technology of aluminum sectional material sludge, a recyclable componentin the sludge is firstly transformed into a solution state by adopting a chemical dissolving method and residual unrecyclable components are used for other uses; then an aluminum element in a solutionis transformed into industrial-grade aluminum hydroxide by utilizing a chemical extraction method and a physical separation means, so that great reduction of aluminum-industry sludge and sustainableutilization of resources are realized; the operating cost of enterprises is reduced and the environment pollution is reduced.

Description

technical field [0001] The invention relates to a treatment system and method for aluminum industry sludge, in particular to a system and method for treating aluminum industry sludge by means of chemical extraction and physical separation. Background technique [0002] The composition of the sludge produced by the aluminum profile industry is complex, and the types and contents of metal ions in the sludge of various manufacturers are different, which has great pollution and toxicity to the environment and brings great difficulties to the treatment of sludge. The prior art uses methods such as physical extrusion, drying and dehydration to reduce the amount of aluminum industry sludge, and then sends it as solid hazardous waste for landfill treatment, and the treatment cost is very high. Some enterprises adopt the method of classified treatment, and separate the sludge containing highly toxic heavy metals such as nickel and chromium from the ordinary aluminum sludge, which can...

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): C02F11/12C02F11/14C02F9/04C01F7/02C02F103/16
CPCC01F7/02C02F9/00C02F11/12C02F11/122C02F11/14C02F1/001C02F1/42C02F1/66C02F2301/08C02F2103/16
Inventor 胡长淳张道福周明茜武桢邵俊杰
Owner KEDA INDUSTRIAL GROUP CO LTD