Enhanced removal of ethylbenzene from gas streams in biotrickling filters by Tween-20 and Zn(II)

Lu Wang; Chunping Yang; Yan Cheng; Jian Huang; Haining Yang; Guangming Zeng; Li Lu; Shanying He

doi:10.1016/j.jes.2014.04.011

Enhanced removal of ethylbenzene from gas streams in biotrickling filters by Tween-20 and Zn(II)

J Environ Sci (China). 2014 Dec 1;26(12):2500-7. doi: 10.1016/j.jes.2014.04.011. Epub 2014 Nov 3.

Authors

Lu Wang¹, Chunping Yang², Yan Cheng³, Jian Huang³, Haining Yang³, Guangming Zeng³, Li Lu⁴, Shanying He⁵

Affiliations

¹ Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China. Electronic address: wanglu-1987@qq.com.
² Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China; College of Environmental Science and Engineering, Hunan University, Changsha 410082, China. Electronic address: yangcp@zjgsu.edu.cn.
³ College of Environmental Science and Engineering, Hunan University, Changsha 410082, China; Key Laboratory of Environmental Biology and Pollution Control (Hunan University), Ministry of Education, Changsha 410082, China.
⁴ Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China. Electronic address: ll0106@zjgsu.edu.cn.
⁵ Zhejiang Provincial Key Laboratory of Solid Waste Treatment and Recycling, College of Environmental Science and Engineering, Zhejiang Gongshang University, Hangzhou 310018, China.

PMID: 25499498
DOI: 10.1016/j.jes.2014.04.011

Abstract

The effects of Tween-20 and Zn(II) on ethylbenzene removal were evaluated using two biotrickling filters (BTFs), BTF1 and BTF2. Only BTF1 was fed with Tween-20 and Zn(II). Results show that ethylbenzene removal decreased from 94% to 69% for BTF1 and from 74% to 54% for BTF2 with increased organic loading from 64.8 to 189.0 g ethylbenzene/(m³·hr) at EBRT of 40 sec. The effect of EBRT (60-15 sec) at a constant ethylbenzene inlet concentration was more significant than that of EBRT (30-10 sec) at a constant organic loading. Biomass accumulation rate within packing media was reduced significantly.

Keywords: Biofilm; Biotrickling filter; Ethylbenzene; Surfactant; Zinc.

Publication types

Evaluation Study
Research Support, Non-U.S. Gov't

MeSH terms

Air Pollutants / isolation & purification*
Benzene Derivatives / isolation & purification*
Biomass
Bioreactors
Filtration
Polysorbates / chemistry*
Zinc / chemistry*

Substances

Air Pollutants
Benzene Derivatives
Polysorbates
Zinc
ethylbenzene