Study on the removal of nitrate from water by Fe/C micro-electrolysis process

Author

Li, Jun ; Liu, Qiang ; Zhang, Shuya ; Yao, Songtao ; Yang, Shuang

Author_Institution

Sch. of Municipal & Enviromental Eng., Shengyang Jianzhu Univ., Shenyang, China

fYear

2011

fDate

15-17 July 2011

Firstpage

3588

Lastpage

3591

Abstract

The removal of nitrate by micro-electrolysis process was studied. According to principles of micro-electrolysis, the reaction column was fed with iron filings and granular activated carbon. By controlling pH value, NO₃^- - N concentration, HRT, aeration, the influence of these factors were investigated. The results showed that when at the case of 1~2.5 of pH value, 40 mg/L of NO₃^--N, 90 min of HRT,180~260 of air/water rate, 4:3 of Fe/C(cubage), 68% denitrification rate was achieved. The pH value and aeration amount has a lager influence on the treatment effect. The removal of nitrate by micro-electrolysis process was effective.

Keywords

activated carbon; electrolysis; granular materials; iron; nitrogen compounds; water treatment; Fe; HRT; NO₃; aeration; denitrification rate; granular activated carbon; iron filings; microelectrolysis process; nitrate removal; pH value control; reaction column; treatment effect; water; Carbon; Communities; Electrochemical processes; Iron; Medical services; Nanoscale devices; Wastewater; micro-electrolysis; nitrate; the rate of removal;

fLanguage

English

Publisher

ieee

Conference_Titel

Mechanic Automation and Control Engineering (MACE), 2011 Second International Conference on

Conference_Location

Hohhot

Print_ISBN

978-1-4244-9436-1

Type

conf

DOI

10.1109/MACE.2011.5987769

Filename

5987769