Micro-electrolytic filler for realizing the resource utilization of iron mud, preparation method and use thereof

A resourceful, micro-electrolysis technology, applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc., can solve problems such as micro-electrolysis fillers that have not been found, and achieve improved biodegradability, content removal, The effect of saving drug costs

Inactive Publication Date: 2019-06-07
SHAANXI COAL & CHEM TECH INST
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, no relevant technology has been found to use iro

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
  • Micro-electrolytic filler for realizing the resource utilization of iron mud, preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0033] Example 1

[0034] First, mix blue charcoal, iron sludge and binder uniformly according to the proportions. Among them, 25 parts blue charcoal, 75 parts iron sludge, 12 parts binder, 12 parts binder is composed of 5 parts bentonite, 5 parts sodium silicate and A mixture of 2 parts of phenolic resin, the materials are mixed uniformly and then aged for 4 hours; then, the aged materials are mechanically extruded to obtain a green body, which is dried naturally and then dried at 120°C for 2 hours; After drying the green body at 1200℃ N 2 It is sintered in an atmosphere for 2 hours, and after cooling, a micro-electrolytic filler that realizes the resource utilization of iron mud can be obtained.

[0035] The prepared micro-electrolysis filler has the following effects on the treatment of blue charcoal wastewater:

[0036] The blue charcoal wastewater with a COD concentration of 6500mg / L undergoes micro-electrolysis after acid adjustment. The hydraulic retention time is 6h, the tem...

Example Embodiment

[0037] Example 2

[0038] First, mix the coke, iron sludge and binder uniformly according to the proportions. Among them, 45 parts coke, 50 parts iron sludge, 5 parts binder, and 5 parts binder are composed of 3 parts sodium silicate, 1 part phenolic resin and 1 part. A mixture of parts of tar, the materials are evenly mixed and then aged for 2 hours; then, the aged materials are mechanically extruded to obtain a green body, which is dried naturally and dried at 90°C for 4 hours; The green body is sintered in an Ar atmosphere at 850°C for 6 hours, and after cooling, a micro-electrolytic filler that realizes the resource utilization of iron mud is obtained.

[0039] The effect of the prepared micro-electrolysis filler on gasification wastewater is as follows:

[0040] The gasification wastewater with a COD concentration of 5000 mg / L undergoes micro-electrolysis after acid adjustment. The hydraulic retention time is 4h, the temperature is 40°C, and the COD removal rate reaches 38%.

Example Embodiment

[0041] Example 3

[0042] First, mix the activated carbon, iron sludge and binder uniformly according to the proportions. Among them, 30 parts of activated carbon, 60 parts of iron sludge, 15 parts of binder, 15 parts of binder are made of 10 parts of bentonite, 2 parts of phenolic resin and 3 parts of starch The resulting mixture, the materials are mixed uniformly, and then aged for 3 hours; then, the aged materials are mechanically extruded to obtain a green body, which is dried naturally and dried at 70°C for 6 hours; the dried green body Water vapor N at 1100℃ 2 It is sintered in an atmosphere for 4 hours, and after cooling, a micro-electrolytic filler that realizes the resource utilization of iron mud can be obtained.

[0043] The prepared micro-electrolytic filler coking wastewater treatment effect is as follows:

[0044] The coking wastewater with a COD concentration of 3500mg / L undergoes micro-electrolysis after acid adjustment, the hydraulic retention time is 3h, the temper...

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 technical field of waste water treatment, in particular to a micro-electrolytic filler for realizing the resource utilization of iron mud, a preparation method and a use thereof. The micro-electrolytic filler comprises the following raw materials in parts by weight: 25-45 parts of carbon, 50-80 parts of iron and 5-15 parts of binder, wherein that iron is from iron mud.When the micro-electrolytic filler of the invention is prepared, carbon, iron and binder are uniformly mixed according to the proportion and aged; then the obtained mixture is made into a green body,and the green body is dried; and then the dried green body is sintered at 600-1200 DEG C for 2-8 hours under the oxygen-free condition, and after cooling, the micro-electrolytic filler for realizingthe resource utilization of the iron mud is obtained. The microelectrolytic filler of the present invention can be used for treating organic wastewater. The invention aims at the iron mud generated inthe process of production and waste water treatment, and utilizes the principle of carbothermal reduction to carry out the resource utilization of the iron mud.

Description

technical field [0001] The invention relates to the technical field of waste water treatment, in particular to a micro-electrolytic filler for realizing resource utilization of iron slime, a preparation method and application thereof. Background technique [0002] As an important wastewater treatment technology, the iron-carbon micro-electrolysis process has been successfully applied in wastewater treatment fields such as coal chemical industry, printing and dyeing, electroplating, pharmaceuticals, papermaking, and petroleum refining. Among all the process influencing factors, the filler is the core part of the iron-carbon micro-electrolysis treatment process, which has a direct impact on the effect and efficiency of the iron-carbon micro-electrolysis treatment process. At present, most of the iron used in iron-carbon micro-electrolytic fillers is iron filings, steel slag and other elemental iron. As a substitute for iron resources, iron slime can be utilized as a resource ...

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): C02F1/461C02F101/30
Inventor 李克伦张生军田士东张红星谭晓婷王奕晨杜秉霖岳婷婷
Owner SHAANXI COAL & CHEM TECH INST
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