VOC and air toxics control using biofiltration: 2 full-scale system case studies
- Envirogen, Inc., Lawrenceville, NJ (United States); and others
Industry continuous to search for innovative air treatment technologies to cost effectively meet the stringent requirements of the CAAA. High volume process exhaust streams contaminated with dilute concentrations of VOCs and HAPs are an especially challenging problem. Biological treatment is an option that must be evaluated with the traditional control technologies (chemical scrubbing, condensation, adsorption, thermal oxidation, etc.) because of the low operating costs and the system is environmentally friendly. In the United States, biofiltration is considered an emerging technology, however, full-scale biofiltration systems are now successfully operating in two rigorous services. At Nylonge Corporation, a biofilter is safely and efficiently degrading CS{sub 2} and H{sub 2}S vapor emissions. The ABTco system is successfully treating the target compounds, methanol and formaldehyde, in a press exhaust containing inert particulate and semi-volatiles. These systems are both based on a unique, patented modular design. The modular concept allows the system to be easily installed resulting in construction cost minimization and maintaining critical project schedules. The modular system offers flexibility because the biofilter is easily expanded to accommodate future plant growth. The modular design benefits the end user because individual modules or biofilter sections can be isolated for service and inspection while the biofilter system stays on-line. An up-flow configuration and the patented irrigation system allow biofilters to be used on the most difficult services. In the case of Nylonge, the biofilter is handling the sulfuric acid generated during the degradation of CS{sub 2} and H{sub 2}S vapors. At ABTco, stable operation is achieved in a stream containing particulates and semi-volatiles.
- OSTI ID:
- 625664
- Report Number(s):
- CONF-9702113-; TRN: 98:002184-0039
- Resource Relation:
- Conference: Specialty conference on emerging solutions to VOC and air toxics control, San Diego, CA (United States), 26-28 Feb 1997; Other Information: PBD: 1997; Related Information: Is Part Of Emerging solutions to VOC & air toxics control; PB: 525 p.
- Country of Publication:
- United States
- Language:
- English
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