Microscopic Analysis of Iron and Steel Slag Used as a Source of Cationic Precipitation Agents in Water Treatment

Rafael Schouwenaars, Rosa María Ramírez Zamora

Abstract

Iron and steel slag represent a high-volume solid waste material from heavy industry. Despite several applications in the construction industry, most slag is still deposited in landfills, where it represents an increasing environmental nuisance. Over the last decade, it has been shown that many slags can be used for environmental remediation, particularly in the treatment of contaminated water resources, where the waste product can substitute for expensive high-speciality reagents. This is important in reducing the cost of water treatment. Most authors describe the action of the slag as adsorption; recently, strong evidence has been presented that they act as a source of ions, which promote precipitation. Considering the complex composition and mineralogy of slags and large variety of slags produced in the iron and steel industry, precise identification of candidate materials for specific applications is a challenge. This brief paper will summarise some applications and show how optical and electron microscopy serve as a tool to identify active components in the product and help elucidating the contaminant removal mechanisms.

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Paper Citation


in Harvard Style

Schouwenaars R. and Zamora R. (2018). Microscopic Analysis of Iron and Steel Slag Used as a Source of Cationic Precipitation Agents in Water Treatment.In The Second International Conference on Materials Chemistry and Environmental Protection - MEEP, ISBN 978-989-758-360-5, pages 297-300. DOI: 10.5220/0008189102970300


in Bibtex Style

@conference{meep18,
author={Rafael Schouwenaars and Rosa María Ramírez Zamora},
title={Microscopic Analysis of Iron and Steel Slag Used as a Source of Cationic Precipitation Agents in Water Treatment},
booktitle={The Second International Conference on Materials Chemistry and Environmental Protection - MEEP,},
year={2018},
pages={297-300},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0008189102970300},
isbn={978-989-758-360-5},
}


in EndNote Style

TY - CONF

JO - The Second International Conference on Materials Chemistry and Environmental Protection - MEEP,
TI - Microscopic Analysis of Iron and Steel Slag Used as a Source of Cationic Precipitation Agents in Water Treatment
SN - 978-989-758-360-5
AU - Schouwenaars R.
AU - Zamora R.
PY - 2018
SP - 297
EP - 300
DO - 10.5220/0008189102970300