Pollutant Removal from Wood and Coal Flue Gases by Soil Treatment

Duncan, Michael; Bohn, Hinrich L.; Burr, Mark D.

doi:10.1080/00022470.1982.10465528

Cited by 8 publications

(5 citation statements)

References 15 publications

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“…Soil beds also sorb inorganic gases such as SO2, H 2 S and N0 x and oxidize the gases to H2SO4 and HNO3 which are immediately neutralized by the soil (Duncan et al 1982). The bed's lifetime depends on its neutralization capacity, which is easily supplemented by liming.…”

Section: Air Treatment By Soil Beds (Biofilters)mentioning

confidence: 99%

“…Soil beds remove 99.9% of easily oxidizable gases, such as aldehydes, ketones, organic acids, amines, and organic sulfur compounds (Prokop and Bohn 1985); >99% of inorganic gases such as S0 2 , N0 x , and H 2 S; and about 90% of weakly adsorbed and slowly biodegradable gases such as carbon monoxide and propane (Duncan et al 1982;Ebinger 1984).…”

Section: Air Treatment By Soil Beds (Biofilters)mentioning

confidence: 99%

“…Aeration increases the amount and rate of detoxification compared to that possible under anaerobic conditions. The water-and pollutant-laden air removed from the landfill can be stripped of its pollutant content inexpensively and safely by soil beds, or biofilters (Smith et al 1973;Bohn 1976;Duncan et al 1982;Prokop and Bonn 1985).…”

Section: Introductionmentioning

confidence: 98%

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Renovating landfills by air extraction and treatment

Bohn

1987

Journal of Environmental Science and Health . Part A: Environme

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Liquid flow from disposal sites can be prevented by drying the site much below the minimal dryness attained by drainage into wells and drains.Evaporation in any site can achieve the degree of dryness necessary for Class I and II landfill flow rates. Liquids will evaporate into air drawn through the site. The air flow would also supply oxygen and increase waste degradation rates.The extracted air can be scrubbed inexpensively, effectively, and safely by soil beds.

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Section: Air Treatment By Soil Beds (Biofilters)mentioning

confidence: 99%

Section: Air Treatment By Soil Beds (Biofilters)mentioning

confidence: 99%

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Renovating landfills by air extraction and treatment

Bohn

1987

Journal of Environmental Science and Health . Part A: Environme

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“…These types of VOCs pose the most serious problem to biofilters by producing toxic metabolic intermediates [18,19]. Biofiltration technology has been proven successful for the degradation of VOCs such as methane, propane, hydrocarbons, gasoline, cyanide gas, iso-pentane, toluene, methylene chloride, trichloroethylene, ethyl benzene, chlorobenzene, perchloroethylene and terpenes [5,9,[20][21][22][23][24][25][26][27][28]. Biofiltration systems are particularly effective when used with systems that generate large quantities of air containing low concentrations of biodegradable VOCs (<100 ppmv).…”

Section: -Testing Of the Integrated Pilot-scale Biofiltration Unit (Mtu)mentioning

confidence: 99%

Coupled Physical/Chemical and Biofiltration Technologies to Reduce Air Emissions from Forest Products Industries

McGinnis¹

2001

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A-Project Objective:The research is a laboratory and bench-scale investigation of a system to concentrate and destroy volatile organic compounds (VOCs), including hazardous air pollutants, formed from the drying of wood and the manufacture of wood board products (e.g., particle board and oriented strandboard). The approach that was investigated involved concentrating the dilute VOCs (<500 ppmv) with a physical/chemical adsorption unit, followed by the treatment of the concentrated VOC stream (2,000 to 2,500 ppmv) with a biofiltration unit. The research program lasted three years, and involved three research organizations. Michigan Technological University was the primary recipient of the financial assistance, the USDA Forest Products Laboratory (FPL) and Mississippi State University (MSU) were subcontractors to MTU. The ultimate objective of this research was to develop a pilot-scale demonstration of the technology with sufficient data to provide for the design of an industrial system. No commercialization activities were included in this project. Background:The following tasks, milestones and schedule are given below for the project.

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“…The bed was simply a perforated PVC pipe, 10 cm diameter and 35 m long, buried horizontally 50 cm below the soil surface. 9 The pipe was conventional water leach line pipe and was surrounded by an envelope of 2 cm gravel to spread the gas flow outward into the soil. The soil is a Gila fine sandy loam containing 15 percent clay and 0.8 percent organic matter and was pH 7.2.…”

Section: Laboratory Experimentsmentioning

confidence: 99%