Part of #UV – Photobiofiltration : an Innovated Environmentally Benign Technology for Treatment of VTOCs# :
Publishing year : 2006
Conference : Third National Conference on Iran's Environmental Crisis and its Improvement
Number of pages : 9
Abstract: Volatile organic compounds in the air released from the industry are poisonous for humans and harmful to the environment. Therefore, this contaminated stream must be treated properly before discharging into the atmosphere. This study aimed to develop a new process called UV-Photobiofiltration, while taking advantage of the benefits of Bioloo One, to purify the compounds that are resistant to bio-degradation, in a biologically friendly and environmentally friendly manner. In this laboratory-based study, two combinations of toluene and xylene, the most volatile organic pollutants (VTOCs) in the air of most industries, are used in the oil and gas industry, were used as model combinations. After design and construction, the system has a flow rate of 3.6 and 4.9 L / min, which corresponds to EBCT of 45s and 30s seconds, in different stages with different concentrations of contaminant inputs between mgca rb on / m3 70 -650 operation and operation
The removal of target pollutants was monitored according to the efficiency and removal capacity compared to the biofilters. The results showed that the aqueous process had a 95% efficiency in removing the mixture of pollutants in all studied conditions, while the efficiency of the control system decreased with an increase in the concentration of pollutants in the input below 50%. Also, the pressure drop, which is an important parameter of operation, remained in the UV-Photobiofiltration process during the study period below 8.2 mm H2O per meter bed, while the conventional pressure loss buffer filter was 13.9 mm H2O
Increased. These findings suggest that the innovative process can be an effective and environmentally friendly technology for the purification of air containing compounds that are resistant to biological degradation.