Treatment of mixed waste-gas containing H2S, dichloromethane and tetrahydrofuran by a multi-layer biotrickling filter

2021 ◽  
pp. 128630
Author(s):  
Juping You ◽  
Jianmeng Chen ◽  
Yiming Sun ◽  
Junyi Fang ◽  
Zhuowei Cheng ◽  
...  
Keyword(s):  
Biotrickling Filter ◽  
Waste Gas ◽  
Mixed Waste

scholarly journals Styrene and Bioaerosol Removal from Waste Air with a Combined Biotrickling Filter and DBD–Plasma System

2020 ◽  
Vol 12 (21) ◽  
pp. 9240
Author(s):  
Steffen Helbich ◽  
Daniel Dobslaw ◽  
Andreas Schulz ◽  
Karl-Heinrich Engesser
Keyword(s):  
Energy Levels ◽  
Biotrickling Filter ◽  
Dbd Plasma ◽  
Combined System ◽  
Waste Gas ◽  
Process Gas ◽  
Volatile Organic ◽  
Waste Air ◽  
Specific Input Energy ◽  
Non Thermal Plasma

A combined system of a biotrickling filter and a non-thermal plasma (NTP) in a downstream airflow was operated for 1220 days for treatment of emissions of styrene and secondary emissions of germs formed in the biological process. The biotrickling filter was operated at variable inlet concentrations, empty bed residence times (EBRT), type and dosage of fertilizers, irrigation densities, and starvation periods, while dielectric barrier discharge and corona discharge were operated at different specific input energy levels to achieve optimal conditions. Under these conditions, efficiencies in the removal of volatile organic compounds (VOCs), germs and styrene of 96–98%, 1–4 log units and 24.7–50.1 g C m−3 h−1 were achieved, respectively. Fluid simulations of the NTP and a germ emission-based clocking of the discharge reveal further energy saving potentials of more than 90%. The aim of an energy-efficient elimination of VOCs through a biotrickling filter and of secondary germ emissions by a NTP stage in a downstream airflow for potential re-use of purified waste gas as process gas for industrial application was successfully accomplished.

Model Sensitivity Analysis for Biotrickling Filter Treatment of Graywater Simulant and Waste Gas. II

2008 ◽  
Vol 134 (10) ◽  
pp. 826-834 ◽  
Author(s):  
Sybil Sharvelle ◽  
Mazdak Arabi ◽  
M. Katherine Banks ◽  
Fred Mannering
Keyword(s):  
Sensitivity Analysis ◽  
Biotrickling Filter ◽  
Model Sensitivity ◽  
Waste Gas

Model Development for Biotrickling Filter Treatment of Graywater Simulant and Waste Gas. I

2008 ◽  
Vol 134 (10) ◽  
pp. 813-825 ◽  
Author(s):  
Sybil Sharvelle ◽  
Mazdak Arabi ◽  
Eric McLamore ◽  
M. Katherine Banks
Keyword(s):  
Model Development ◽  
Biotrickling Filter ◽  
Waste Gas

scholarly journals Steady-state and transient-state performance of a biotrickling filter treating chlorobenzene-containing waste gas

2004 ◽  
Vol 65 (1) ◽  
Author(s):  
C. Seignez ◽  
N. Adler ◽  
C. Thoeni ◽  
M. Stettler ◽  
P. P�ringer ◽  
...  
Keyword(s):  
Steady State ◽  
Transient State ◽  
Biotrickling Filter ◽  
Waste Gas

Treatment of Chlorobenzene-Contaminated Gas Stream in a Biotrickling Filter Inoculated with Ralstonnia pickettii L2

2014 ◽  
Vol 700 ◽  
pp. 253-256
Author(s):  
Lan Zhou ◽  
Shi Gang Su ◽  
Li Li Zhang
Keyword(s):  
Degradation Rate ◽  
Biotrickling Filter ◽  
Mass Ratio ◽  
Inlet Concentration ◽  
Waste Gas ◽  
Benzene Toluene ◽  
Metabolic Activities ◽  
Specific Degradation ◽  
Menten Kinetic ◽  
Empty Bed Residence Time

Biotrickling filter (BTF) inoculated with Ralstonniapickettii L2 was established to treat waste gas containing chlorobenzene (CB). Results revealed BTF could achieve more than 80% removal efficiency of CB under the conditions of <0.6 g·m-3inlet concentration and >30 s empty bed residence time (EBRT). The mass ratio of carbon dioxide produced to the mixture of benzene, toluene, and oxylene (BTo-X) removed was approximately 2.10, indicating that 89.5% mineralization of the incoming CB vapor. The degradation of CB in the BTF followed Michaelis-Menten kinetic model, and the maximum specific degradation rate (rmax) was 76.3g·m-3·h-1. AWCD values indicated that the microganisms in the BTF showed the high microbial metabolic activities. Real-time PCR indicated that Ralstoniapickettii L2 could still maintain its stability andactivity in the BTF under different conditions.

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