Experimental study on improving the purification efficiency of formaldehyde waste gas with bio-trickling filter

Author

Li, Xiao-mei ; Liu, Ming-Jia ; Mo, Yong-Tao ; Jing, Bi ; Wang, Li-Qing ; He, Feng ; Sun, Pei-Shi ; Wang, Jie

Author_Institution

Kunming Univ. of Sci. & Technol., Kunming, China

fYear

2011

fDate

22-24 April 2011

Firstpage

6593

Lastpage

6596

Abstract

The effect of sodium sulfite on improving the purification efficiency of formaldehyde waste gas in a bio-trickling filter was investigated. In the study, 0.05 M sodium sulfite was added in the trickling liquid. The results showed that sodium sulfite efficiently removed the formaldehyde that was solved in the trickling liquid. The removal efficiencies were high up to 98.9%. The apparent slow bio-reaction rate of purifying formaldehyde was increased by 2.63mg/m².h, and the enhancement factor of the slow bio-reaction was increased to 0.61. Sodium sulfite improved the purification efficiency of formaldehyde waste gas. The results are useful for developing practical and efficient techniques for purifying formaldehyde waste gas.

Keywords

air pollution control; biotechnology; industrial waste; purification; sodium compounds; bioreaction rate; biotrickling filter; formaldehyde waste gas; purification efficiency; sodium sulfite; Bismuth; Chemical engineering; Educational institutions; Oxidation; Purification; Sun; bio-trickling filter; formaldehyde waste gas; purification; sodium sulfite;

fLanguage

English

Publisher

ieee

Conference_Titel

Electric Technology and Civil Engineering (ICETCE), 2011 International Conference on

Conference_Location

Lushan

Print_ISBN

978-1-4577-0289-1

Type

conf

DOI

10.1109/ICETCE.2011.5776302

Filename

5776302