Accession Number : ADA325705

Title :   Development of Biotrickling Filters to Treat Sulfur and VOC Emissions. Phase II.

Descriptive Note : Quarterly rept. no. 2, 31 Dec 96-31 Mar 97,

Corporate Author : ENVIROGEN INC LAWRENCEVILLE NJ

PDF Url : ADA325705

Report Date : 29 MAY 1997

Pagination or Media Count : 15

Abstract : The Phase II project was initiated on September 30, 1996. The goal of this SBIR project is to develop a cost-effective, efficient biological treatment system, a biotrickiing filter, to treat air emissions of significance to the Navy. These emissions include odors from oily bilge holding tanks, and point sources of hazardous air pollutants (HAPs) such as paint spray booths. Biotrickling filters are similar to scrubbers, but rely on microorganisms on the packing surface to remove and degrade the contaminants. Phase I work identified microbial cultures capable of degrading and growing on air pollutants of importance to the Navy. Greater than 98 percent hydrogen sulfide and methyl mercaptan removal efficiencies were demonstrated for odor applications, and 90 percent VOC (toluene, xylene, MEK, and n-butyl acetate) removal efficiencies were demonstrated for paint-spray booth applications. In addition, three different biomass support packing materials were screened. The objectives of Phase II are to: (1) develop a method to control biofilm growth; (2) establish the full-scale system pressure drop characteristics; (3) establish the effective treatment range; (4) perform overall mass balances and confirm transformation to benign products; (5) demonstrate the technology in the field at a Navy site; and (6) prepare a final report detailing the results and conclusions of the Phase II effort, including an economic analysis.

Descriptors :   *EMISSION, *HAZARDS, *AIR POLLUTION, *XYLENES, *FILTERS, *THIOLS, *TOLUENES, *HYDROGEN SULFIDE, SOURCES, REMOVAL, ECONOMIC ANALYSIS, BIOLOGY, METHYL RADICALS, NAVY, MASS, SURFACES, PACKAGING, SULFUR, TRANSFORMATIONS, BALANCES, PACKING MATERIALS, SULFUR COMPOUNDS, BIOMASS CONVERSION, ODORS.

Subject Categories : Biochemistry
      Inorganic Chemistry
      Air Pollution and Control

Distribution Statement : APPROVED FOR PUBLIC RELEASE