Study on the Purification Process of Arsenic High Iron Wastewater from Zinc Smelter

Haoen Zuo, Jiankang Wen, Biao Wu, Xinglan Cui, He Shang, Wencheng Gao

2018

Abstract

Arsenic high iron wastewater was produced by sulfated roasting-water leaching process from the zinc smelting industry, high contents of total iron, zinc ion and sulfate ion, were contained, a certain amount of arsenic ion, copper ion and cadmium ion were also involved. With strict environmental protection, the comprehensive utilization of wastewater has great economic significance, it is one of the most important direction that the preparation of iron-salt flocculant with wastewater. It is necessary to pretreat and purify firstly. In this paper, the sample comes from Chihong Inner Mongolia, China. The concentrations of total iron, sulfate ion and zinc ion are 24.18 g/L, 91.31 g/L and 5.54 g/L, respectively. The effect of reducing agent proportion, temperature, stirring speed on the purification of arsenic ion, copper ion, cadmium ion was researched. The optimal conditions are: reducing agent proportion of 1% of iron powder, 2% of zinc powder, temperature of 60 ℃, and stirring speed of 800 rpm. Under the conditions, the efficiency of arsenic ion, copper ion and cadmium ion all reached 99.99%. The concentrations of total iron, sulfate ion and zinc ion in the wastewater after purification are 55.23 g/L, 126.25 g/L and 39.00 g/L, respectively, which provided the precondition for the subsequent preparation of iron-salt flocculant.

Paper Citation

in Harvard Style

Zuo H., Wen J., Wu B., Cui X., Shang H. and Gao W. (2018). Study on the Purification Process of Arsenic High Iron Wastewater from Zinc Smelter.In Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG, ISBN 978-989-758-342-1, pages 189-193. DOI: 10.5220/0007427901890193

in Bibtex Style

@conference{iweg18,
author={Haoen Zuo and Jiankang Wen and Biao Wu and Xinglan Cui and He Shang and Wencheng Gao},
title={Study on the Purification Process of Arsenic High Iron Wastewater from Zinc Smelter},
booktitle={Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,},
year={2018},
pages={189-193},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007427901890193},
isbn={978-989-758-342-1},
}

in EndNote Style

TY - CONF

JO - Proceedings of the International Workshop on Environment and Geoscience - Volume 1: IWEG,
TI - Study on the Purification Process of Arsenic High Iron Wastewater from Zinc Smelter
SN - 978-989-758-342-1
AU - Zuo H.
AU - Wen J.
AU - Wu B.
AU - Cui X.
AU - Shang H.
AU - Gao W.
PY - 2018
SP - 189
EP - 193
DO - 10.5220/0007427901890193