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

Method for treating heavy metal ions by recycling modified manganese slag

A technology for heavy metal ions and manganese slag, applied in chemical instruments and methods, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of poor removal of heavy metal ions and low activity of waste manganese slag, etc. To achieve the effect of simple and convenient treatment methods, improve resource utilization, and reduce the generation of pollutants

Pending Publication Date: 2022-07-12
中科广化(重庆)新材料研究院有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of this, the purpose of the present invention is to develop a method for utilizing manganese slag to remove heavy metal ions in wastewater, while solving the problem of low activity of waste manganese slag and poor effect of removing heavy metal ions

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 treating heavy metal ions by recycling modified manganese slag
  • Method for treating heavy metal ions by recycling modified manganese slag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Embodiment 1: Modified manganese slag preparation one

[0028] The present embodiment prepares manganese slag by weighing raw materials first:

[0029] 200g manganese slag, 10g dopamine, 0.2g sodium lauryl sulfonate, 0.2mol / L 120g sodium citrate solution, 1mol / L 200g sodium nitrate solution, 0.1mol / L 200g potassium fluoride solution, 200g phthalate, 80g The polylactic acid-glycolic acid copolymer, the manganese slag used in this implementation comes from a mining company in Xiushan, Chongqing, wherein the content of iron oxide in the manganese slag is about 2.1%.

[0030] The preparation steps are as follows:

[0031] a. Pulverize the manganese slag into fine slag of about 2-3mm, put it in hot water at 80°C for 24 hours, take it out, soak it with 5wt% triethanolamine solution at room temperature and stir it for 24 hours, the triethanolamine solution does not pass the Manganese slag is enough, then take it out, rinse it with water, dry it, and grind it into manganese o...

Embodiment 2

[0033] Embodiment 2: Modified manganese slag preparation two

[0034] The present embodiment prepares manganese slag by weighing raw materials first:

[0035] 100g manganese slag, 10g dopamine, 0.1g sodium lauryl sulfonate, 0.2mol / L 60g sodium citrate solution, 1mol / L 100g sodium nitrate solution, 0.1mol / L 100g potassium fluoride solution, 100g phthalate, 40g The polylactic acid-glycolic acid copolymer, the manganese slag used in this implementation comes from a mining company in Xiushan, Chongqing, wherein the content of iron oxide in the manganese slag is about 2.1%.

[0036] The preparation steps are as follows:

[0037] a. Pulverize the manganese slag into fine slag of about 2-5mm, put it in hot water at 70°C for 24 hours, take it out, soak it with 8wt% triethanolamine solution at room temperature and stir for 36 hours, the triethanolamine solution does not pass Manganese slag is enough, then take it out, rinse it with water, dry it, and grind it into manganese ore powde...

Embodiment 3

[0039] Embodiment 3: Modified manganese slag preparation three

[0040] The present embodiment prepares manganese slag by weighing raw materials first:

[0041] 50g manganese slag, 3.5g dopamine, 0.05g sodium lauryl sulfonate, 0.2mol / L 30g sodium citrate solution, 1mol / L 50g sodium nitrate solution, 0.1mol / L 50g potassium fluoride solution, 50g phthalate, 20 g of polylactic acid-glycolic acid copolymer, the manganese slag used in this implementation is from a mining company in Xiushan, Chongqing, and the content of iron oxide in the manganese slag is about 2.1%.

[0042] The preparation steps are as follows:

[0043]a. Pulverize the manganese slag into fine slag of about 2-5mm, then place it in hot water at 75°C for 24 hours, remove it, and soak it in a 10wt% triethanolamine solution at room temperature for 25 hours. Manganese slag is enough, then take it out, rinse it with water, dry it, and grind it into manganese ore powder with a particle size of about 0.05mm;

[0044] ...

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
Particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for treating heavy metal ions by recycling modified manganese slag, which belongs to the technical field of heavy metal ion treatment, and comprises the following steps: (1) adjusting the pH value of heavy metal wastewater to be treated to 9-10 by using an alkaline solution; (2) mixing the heavy metal wastewater with the modified manganese slag, stirring for 20-40 minutes, and standing; and (3) filtering after standing for 12-24 hours, and carrying out subsequent treatment on the separated wastewater. The invention aims to develop the method for removing the heavy metal ions in the wastewater by using the manganese slag, and meanwhile, the problems of low activity and poor heavy metal ion removal effect of the waste manganese slag at present are solved.

Description

technical field [0001] The invention relates to the technical field of heavy metal ion treatment, in particular to a method for treating heavy metal ions by recycling modified manganese slag. Background technique [0002] The harm of heavy metals to the environment and human body is mainly because the wastewater containing heavy metals is discharged into the water body, so that the content of heavy metals in the water body rises sharply, and then infects the soil and harms human health through the enrichment of the food chain. Heavy metal elements have the characteristics of refractory degradation, high toxicity, and difficult recovery after treatment, which seriously endanger human safety, such as Cr 6+ , Cd 2+ Cd and other heavy metal elements have carcinogenic, teratogenic, mutagenic and other hazards. For example, the occurrence of "Ititai Disease" in the Jintong River Basin of Mount Fuji, Japan is a typical Cd 2+ Poisoning incident. This is mainly due to the unreason...

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): C02F9/04C02F101/20
CPCC02F9/00C02F1/66C02F1/001C02F1/52C02F2101/20Y02P10/20
Inventor 桑柳波赖华杰邵峙玮刘博陈春霖吴志鹏
Owner 中科广化(重庆)新材料研究院有限公司
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