Abstract
We have developed a High Gradient Magnetic Separation (HGMS) system to remove arsenic from geothermal water and to supply hot water for public use by using a superconducting magnet. We attained the reduction of arsenic concentration to 0.015 mg/L that is less than the standard for discharge of 0.1 mg/L and slightly larger than the environmental standard of 0.01 mg/L in Japan. The system consists of a pretreatment process that adds extra magnetization to arsenic by chemical reaction, and a reciprocal HGMS filter using a superconducting magnet that extracts magnetized arsenic from the geothermal water. We present the experimental results of the removal system.
Original language | English |
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Pages (from-to) | 1576-1579 |
Number of pages | 4 |
Journal | IEEE Transactions on Applied Superconductivity |
Volume | 14 |
Issue number | 2 |
DOIs | |
Publication status | Published - 2004 Jun |
Externally published | Yes |
Keywords
- Arsenic
- Geothermal water
- High gradient magnetic separation
- Superconducting magnet
ASJC Scopus subject areas
- Electronic, Optical and Magnetic Materials
- Condensed Matter Physics
- Electrical and Electronic Engineering