Removal of Phosphate from Aqueous Solution With Fe-Mn Oxide Formed in Situ by KMnO4-Fe(II) Process

Author

Liu, Ke ; Ma, Jun ; Qin, Qingdong

Author_Institution

State Key Lab. of Urban Water Resource & Environ., Harbin Inst. of Technol., Harbin, China

fYear

2010

fDate

18-20 June 2010

Firstpage

1

Lastpage

4

Abstract

The removal of phosphate by KMnO₄-Fe(II) process was investigated under different experimental conditions. The results showed that mix speeds and settling time had no significant effect on phosphate removal. The removal of phosphate was gradually increased with the increase of Fe dosages and decreased with the increase of pH. When the pH increased from 4 to 9, the removal of phosphate decreased from 97.1% to 41.6%. Compared with ferric sulfate, the KMnO₄-Fe(II) process was more efficient for phosphate removal. The presence of turbidity had limited effect on phosphate removal at lower pH and resulted in a significant increase in phosphate removal at higher pH. The temperature had little effect on phosphate removal in KMnO₄-Fe(II) process. With the presence of calcium, the removal of phosphate had a significantly increase. Silicate had negative effect on phosphate removal in KMnO₄-Fe(II) process.

Keywords

iron; manganese compounds; potassium compounds; wastewater treatment; KMnO₄-Fe; aqueous solution; ferric sulfate; mix speed; pH; phosphate removal; settling time; Aluminum; Chemical technology; Coagulation; Costs; Iron; Plasma measurements; Temperature; Testing; Wastewater treatment; 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.2010.5514865

Filename

5514865