Experimental Study on Using Precipitation Flotation Process to Treat Electroplating Wastewater

Author

Dai Wencan ; Sun Shuiyu ; Chen Tao

Author_Institution

Fac. of Environ. Sci. & Eng., Guangdong Univ. of Technol., Guangzhou, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

The removal of heavy metal ions(HMI) contained in the electroplating wastewater by precipitation flotation was studied. Experimental results show that chromium, copper, nickel and other heavy metals can be removed efficiently, and all the water quality indexes were up to the first grade of wastewater discharge standard (GB21900-2008) when the dosage of Na₂S (C_Na2S:C_Me=1.6) and pH7.5-8.5. The percentage of the chromium, copper and nickel in the foam product is 14.2%, 10.3% and 8.2%, respectively. Therefore, it is possible to recover these heavy metals from waste water and yield good economic returns.

Keywords

chromium; copper; electroplating; nickel; precipitation; wastewater treatment; water quality; Cr; Cu; Ni; economic return; electroplating wastewater treatment; foam product; heavy metal ion; precipitation flotation process; wastewater discharge standard; water quality; Chromium; Copper; Environmental economics; Nickel; Petroleum; Sediments; Sun; Wastewater treatment; Water pollution; Water resources;

fLanguage

English

Publisher

ieee

Conference_Titel

Bioinformatics and Biomedical Engineering (iCBBE), 2010 4th International Conference on

Conference_Location

Chengdu

ISSN

2151-7614

Print_ISBN

978-1-4244-4712-1

Electronic_ISBN

2151-7614

Type

conf

DOI

10.1109/ICBBE.2010.5515554

Filename

5515554