Treatment of H2S and NH3 from wastewater using a pilot-scale tray biofilter

2018 2nd International Conference on Energy and Environmental Science

能源学;生态环境科学

Karuchit, S.^1 ; Rakthaisong, A.^1

School of Environmental Engineering, Suranaree University of Technology, Nakhon Ratchasima, Thailand^1

关键词: Coconut shells;    Elimination capacity;    Filter media;    Higher efficiency;    Low concentrations;    Mass loading rate;    Treatment efficiency;    Wastewater treatment plants;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/164/1/012025/pdf
DOI  :  10.1088/1755-1315/164/1/012025

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

A tray biofilter was developed and tested for treatment of high volume, low concentration H2S and NH3 from pig farm wastewater. The combination of 2 bed depth values (0.15 m. and 0.30 m.) and 3 EBRT values (0.6, 1.2, and 1.8 s) resulted in 6 systems for the experiment. The filter media used were compost : chopped coconut shell : dried cow manure : dried wastewater treatment plant sludge at 60:20:10:10 ratio. The treatment efficiency for H2S and NH3 were in the range of 78% - 89% and 57% - 80%, respectively. Overall, the systems with higher bed depth and/or higher EBRT can treat the two gases with higher efficiency. The mass loading rates, the elimination capacity, and efficiency of this study were comparable to other studies.