Enhanced phosphorus removal on the secondary effluent of wastewater treatment plant by Fly Ash

Author

Ma, Dong ; Zhu, Zichen ; Wu, Juan

Author_Institution

Sch. of Resource & Environ., Qingdao Agric. Univ., Qingdao, China

fYear

2011

fDate

24-26 June 2011

Firstpage

1183

Lastpage

1186

Abstract

The purification of phosphate contained the secondary effluent of wastewater treatment plant (WWTP) by fly ash was investigated. The effect of pH, adsorbent dosage, and reaction time on purification efficiency was determined. The results showed that the phosphate the removal rate would increase to 83.3% when the adsorbent dosage was 5 g per 100 ml, the pH was neutral, and the reaction time was 4 h. The kinetics of phosphate on fly ash fitted pseudo-second-order kinetic plot and the adsorption process belongs to chemisorption. After phosphorus removal by fly ash, the reclaimed water fully meets the first level A criteria specified in the Discharge Standard of Pollutants for WWTP (GB 18918-2002).

Keywords

adsorption; chemisorption; effluents; fly ash; pH; phosphorus; purification; wastewater treatment; WWTP; adsorbent dosage; adsorption process; chemisorption; fly ash; pH effect; phosphate purification; phosphorus removal; pseudo-second-order kinetic plot; reaction time; secondary effluent; wastewater treatment plant; Effluents; Fly ash; Kinetic theory; Process control; Purification; Wastewater; Wastewater treatment; adsorption; fly ash; kinetics; phosphorus removal;

fLanguage

English

Publisher

ieee

Conference_Titel

Remote Sensing, Environment and Transportation Engineering (RSETE), 2011 International Conference on

Conference_Location

Nanjing

Print_ISBN

978-1-4244-9172-8

Type

conf

DOI

10.1109/RSETE.2011.5964491

Filename

5964491