Biofilter comprising leonardite, clay and lime

Details Biofilter comprising leonardite, clay and lime Biofilter comprising leonardite, clay and lime

1994-07-07

1996-03-26

Wityshyn, Michael G.

Chemistry: molecular biology and microbiology

Process of utilizing an enzyme or micro-organism to destroy...

Treating gas, emulsion, or foam

435262, 4232132, 4232451, 502401, B01D 5354, B01D 5372, B01D 5384

Patent

active

055019773

ABSTRACT:
A biofilter composition of leonardite, clay, lime, and an inorganic salt mixture and a process for controlling air quality by contacting an air stream with the biofilter composition are provided wherein the composition supports microbial growth. The inorganic salt mixture comprises a nitrogen source and a phosphorus source. The air stream generally contains at least one volatile organic compound.

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patent: 5030365 (1991-07-01), Christensen et al.
patent: 5378280 (1995-01-01), Cruze
Rehm et al, Biotechnology, vol. 8, VCH, Weinheim Federal Republic of Germany, (1986) pp. 427-450.
Bohr, H. "Consider Biofiltration for Decontaminating Gases" Chemical Engineering Progress (Apr. 1992) pp. 34-40.
Brauer, H. "Biological purification of waste gases" International Chemical Engineering. vol. 26, No. 3, (Jul. 1986) pp. 387-395.
Dharmavaram (Air & Waste Management Association 84th Annual Meeting & Exhibition, Jun. 16-21, 1991) Biofiltration A Lean Emissions Abatement Technology, pp. 2-15.
Miller et al--(Environmental Progress, vol. 10, No. 4, Nov. 1991) Control of Aromatic Waste Air Stream by Soil Bioreactors, pp. 300-306.

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