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

Regular iron-carbon micro-electrolysis filler and preparation method thereof

An iron-carbon micro-electrolysis and regularization technology, which is applied in chemical instruments and methods, water/sludge/sewage treatment, water/sewage treatment, etc., can solve the problem of reduced treatment effect of iron-carbon micro-electrolysis filler, easy agglomeration and Channel flow, interruption of micro-electrolysis process, etc., to achieve good treatment effect, convenient packing filling, and prevent hardening

Inactive Publication Date: 2010-09-01
JILIN UNIV
View PDF2 Cites 39 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, a large number of research results show that there are many defects in the application of this method. After the filler has been in operation for a period of time, it is prone to agglomeration and channeling due to the corrosion of iron, which reduces the treatment effect of the iron-carbon micro-electrolysis filler, and at the same time, iron filings will form on the surface. A layer of metal oxide and hydroxide film, resulting in the passivation of iron filings, which leads to the interruption of the micro-electrolysis process and affects the treatment effect

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 1

[0018] Mix 200g (50% by weight) of iron filings with a diameter less than 1mm, 60g (15% by weight) of powdered activated carbon with a diameter less than 0.1mm and 140g (35% by weight) of clay with a diameter less than 0.15mm, and take a little mixture , add a small amount of water, shake slowly to form granules, put the prepared structured packing with a diameter of 3 to 10mm in an oven, dry the water in it at 40°C, put the packing in a muffle furnace, Under the condition of oxygen isolation, it is roasted at 250°C for 4 hours. After the roasting, the filler is taken out and cooled to obtain the regularized iron-carbon micro-electrolytic filler.

Embodiment 2

[0020] 256g (64% by weight) of iron filings with a diameter less than 1mm, 40g (10% by weight) of powdered activated carbon with a diameter less than 0.1mm and 104g (26% by weight) of clay with a diameter less than 0.15mm are fully mixed, and a little mixture is taken , add a small amount of water, shake slowly to form granules, put the prepared structured packing with a diameter of 3 to 10mm in an oven, dry the water in it at 50°C, put the packing in a muffle furnace, Roast at 400°C for 3 hours under the condition of oxygen isolation. After the calcination, the filler is taken out and cooled to obtain the regularized iron-carbon micro-electrolytic filler.

Embodiment 3

[0022] 272g (68% by weight) of iron filings with a diameter of 0.15~0.5mm, 68g (17% by weight) of powdered activated carbon with a diameter less than 0.1mm and 60g (15% by weight) of clay with a diameter less than 0.15mm are fully mixed, A little mixture, add a small amount of water, shake slowly to form granules, put the prepared structured packing with a diameter of 3-10mm in an oven, dry the water in it at 30°C, put the packing in a muffle furnace , roasted at 600°C for 2 hours under the condition of oxygen isolation, after the roasting, the filler was taken out and cooled to obtain the regularized iron-carbon micro-electrolytic filler.

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
diameteraaaaaaaaaa
diameteraaaaaaaaaa
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a regular iron-carbon micro-electrolysis filler and a preparation method thereof, belonging to the technical field of sewage treatment. The filler comprises the following components by weight percent: 50 to 80 percent of scrap iron with the diameter is 0.1 to 1 mm , 5-17 percent of powdery active carbon with the diameter of less than 0.1 mm and 15-35 percent of clay with diameter of less than 0.15 mm. The preparation method of the iron-carbon micro-electrolysis filler comprises the following steps of: a, uniformly mixing the filler according to the weight percentages; b, adding water to make the mixture into granular filler with the diameter of 3 to 10 mm; c, putting the filler into an oven and drying at 30 to 50 DEG C; d, moving the filler into a muffle furnace and baking for 2 to 4 hours at 250 to 600 DEG C in an oxygen-isolated condition; and e, cooling after the filler is baked to obtain the regular iron-carbon micro-electrolysis filler. The invention prevents hardening and passivation of the iron-carbon micro-electrolysis filler, is easy to fill and has advantages of good sewage treatment effect, low cost and easy preparation.

Description

technical field [0001] The invention belongs to the technical field of iron-carbon micro-electrolysis sewage treatment methods, and in particular relates to a preparation method of iron-carbon micro-electrolysis filler. Background technique [0002] Micro-electrolysis is a good process for treating wastewater by using the principle of metal corrosion to form a primary battery. It is also called internal electrolysis, zero-valent iron method, iron filings filtration method, and iron-carbon method. It is a widely researched and applied Wastewater treatment technology has received extensive attention in recent years because of its simple process, convenient operation, and the goal of "treating waste with waste". [0003] However, a large number of research results show that there are many defects in the application of this method. After the filler has been in operation for a period of time, it is prone to agglomeration and channeling due to the corrosion of iron, which reduces ...

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): C02F1/461C02F101/34C02F101/36
Inventor 邹东雷李萌赵勇胜邹昊辰
Owner JILIN UNIV
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