Combination electrode hydro-thermal synthesis method for removing arsenic in water based on electro-adsorption and arsenic removing method thereof

A composite electrode and hydrothermal synthesis technology, applied in the fields of magnetic/electric field water/sewage treatment, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as limited carbon adsorption capacity and weak arsenic interaction ability

Active Publication Date: 2014-04-16
湖南玖恪环境工程有限公司
View PDF1 Cites 16 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Generally, carbon materials are used as electrodes for electrosorption, but the adsorption capacity of carbon is limited, and the interaction ability with arsenic is weak.

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

[0011] Activated carbon fibers (ACF, 0.5 cm in thickness and 5 cm in area 2 ) first activated by immersing in 0.1mol / L dilute nitric acid for 24 hours, and then washed with water. Then put the activated ACF in a high-temperature reaction axe, add manganese salt 2mmol, iron salt 0.01mmol, K 2 S 2 o 8 2mmol, 4mL concentrated sulfuric acid and 76mL distilled water standard, mix well. Finally, the high-temperature reaction ax was sealed and reacted at a constant temperature of 110°C for 6 hours. After cooling to room temperature, it was washed with distilled water and dried in an oven to form a composite electrode.

[0012] Fix the two composite electrodes in the polyethylene shell and connect them to the external stabilized power supply, so that the voltage between the two electrodes is 1.5V, the distance between the two electrodes is 0.1cm, and a polyethylene mesh pad is set between the two electrodes to prevent short circuit between the two electrodes. Set the water intake...

Embodiment 2

[0014] Activated carbon fiber (ACF, 0.5 cm thick, 5 cm area 2 ) first activated by immersing in 0.1mol / L sodium hydroxide solution for 24 hours, and then washed with water. Then put the activated ACF in the high-temperature reaction axe, add manganese salt 2mmol, iron salt 0.2mmol according to every gram of ACF, K 2 S 2 o 8 2mmol, 4mL concentrated sulfuric acid and 76mL distilled water standard, mix well. Finally, the high-temperature reaction ax was sealed and reacted at a constant temperature of 110°C for 6 hours. After cooling to room temperature, it was washed with distilled water and dried in an oven to form a composite electrode.

[0015] Fix the two composite electrodes in the polyethylene shell and connect them to the external stabilized power supply, so that the voltage between the two electrodes is 1.5V, the distance between the two electrodes is 0.1cm, and a polyethylene mesh pad is set between the two electrodes to prevent short circuit between the two electrod...

Embodiment 3

[0017] Activated carbon fiber (ACF, 0.5 cm thick, 5 cm area 2 ) first activated by immersing in 0.1mol / L dilute nitric acid for 24 hours, and then washed with water. Then put the activated ACF in a high-temperature reaction axe, add manganese salt 2mmol, iron salt 0.4mmol according to every gram of ACF, K 2 S 2 o 8 2mmol, 4mL concentrated sulfuric acid and 76mL distilled water standard, mix well. Finally, the high-temperature reaction ax was sealed and reacted at a constant temperature of 110°C for 6 hours. After cooling to room temperature, it was washed with distilled water and dried in an oven to form a composite electrode.

[0018] Fix the two composite electrodes in the polyethylene shell and connect them to the external stabilized power supply, so that the voltage between the two electrodes is 1.5V, the distance between the two electrodes is 0.1cm, and a polyethylene mesh pad is set between the two electrodes to prevent short circuit between the two electrodes. Set ...

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 provides a combination electrode hydro-thermal synthesis method for removing arsenic in water based on electro-adsorption. The combination electrode hydro-thermal synthesis method specifically comprises the following steps of: soaking active carbon fibers in dilute nitric acid or a sodium hydroxide solution for 1-24h for activation, and then washing with water; next, putting the activated active carbon fibers in a high-temperature reaction kettle, adding 2mmol of manganese salt, 0.01-0.4mmol of iron salt, 1-4mmol of K2S2O8, 2-8mL of concentrated sulfuric acid and 60-90mL of distilled water to the high-temperature reaction kettle per 1 gram, and mixing evenly; and finally, sealing the high-temperature reaction kettle, reacting at a constant temperature ranging from 90 to 150 DEG C for 2-24h, cooling to the room temperature and then washing with distilled water, and drying in an oven. The method of preparing the combination electrode provided by the invention is simple and feasible, overcomes the shortcoming that the existing drinking water trace heavy metal element treatment technology is complex and has no choice, provides excellent technical guarantee for the body health of people and has good application value.

Description

technical field [0001] The invention relates to a method for removing arsenic in water, in particular to a method for removing arsenic in water by electric adsorption of a novel electrode. Background technique [0002] At present, heavy metal pollution in water has attracted widespread attention. Water is indispensable for human survival. Drinking water directly affects the human body. Therefore, the quality of drinking water directly affects the health of human beings. Since the beginning of the 20th century, arsenic has been widely used in chemical and pesticide industries, and the pollution of arsenic has become more and more serious. A large amount of arsenic is discharged into the environment through waste gas, waste residue, and waste water, causing air, water, and soil pollution. Air pollutants enter rivers and lakes along with precipitation, thereby causing drinking water pollution. At present, the commonly used methods for removing heavy metals include chemical pr...

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): C02F1/48C02F1/58
Inventor 彭亮秦普丰戴春皓曾清如田川
Owner 湖南玖恪环境工程有限公司
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