Methyl bromide adsorption on activated carbon to control emissions from commodity fumigations

Leesch, J. G.; Knapp, Gerhard F; Mackey, Bruce E.

doi:10.1016/s0022-474x(99)00028-4

Cited by 29 publications

(27 citation statements)

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“…The fumigants gaseous are methyl bromide (MeBr) and phosphine. However, it has been found that methyl bromide is a risk to the Earth's ozone layer [10]. It also creates damage to the environment and dangerous for human's health as it may still remain in the rice even though the gaseous is applied limitedly.…”

Section: Chemical Methodsmentioning

confidence: 99%

Review Article of Radio Frequency and Microwave Heating Treatment to Disinfest Kutu Beras in Malaysian Rice

Zulaika

Rahim

Soh³

et al. 2017

MATEC Web Conf.

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Section: Chemical Methodsmentioning

confidence: 99%

Review Article of Radio Frequency and Microwave Heating Treatment to Disinfest Kutu Beras in Malaysian Rice

Zulaika

Rahim

Soh³

et al. 2017

MATEC Web Conf.

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“…Previous experimental results showed that coconut shell carbon displays excellent adsorptivity for methyl bromide as compared to other carbons and other adsorbents (Leesch et al). 7 Commodity fumigations using 16.5 ppt (parts per thousand, volumetric) methyl bromide (64 g/m 3 or 4 lb/ 1000 ft 3 ) are typical. Following an industrial-scale fumigation, as the contaminated air is evacuated from the chamber and is replaced by fresh air, the chamber approximates a well-mixed vessel.…”

Section: Methodsmentioning

confidence: 99%

“…Methyl bromide readily adsorbs onto peat-, shell-, and coal-based carbons. 7 Adsorption of about 1 kg of methyl bromide per 10 kg of carbon can be achieved at methyl bromide concentrations in air encountered during commodity fumigations. Capital expenses for such processes are relatively small and include the costs of the original load of carbon, fans, and ductwork leading from the fumigation chamber to the container housing the carbon.…”

Section: Introductionmentioning

confidence: 99%

Methyl Bromide Recovery on Activated Carbon with Repeated Adsorption and Electrothermal Regeneration

and

Leesch

2001

Ind. Eng. Chem. Res.

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Methyl bromide is commonly used as a postharvest fumigant. Because it has been identified as an ozone-depleting substance, production of methyl bromide has been targeted for phaseout. Methyl bromide readily adsorbs onto activated carbon. In situ carbon regeneration is being investigated as a means of decreasing the expense of methyl bromide recovery. Heating by passing an electrical current through an adsorbent bed is an efficient means of regenerating carbon and can be performed in the same vessel in which adsorption occurs. Carbon adsorbs roughly 10% of its weight in methyl bromide and can be repeatedly regenerated using electrothermal desorption. Methyl bromide desorbed in this manner is easily condensed at moderate temperatures. Carbon was submitted to 12 adsorption/regeneration cycles and then compared with virgin samples in terms of adsorption equilibria and adsorption rate. The regenerated carbon experienced no loss of mass and exhibited nearly the same capacity as the fresh samples.

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“…A process recently developed in the USA uses activated carbon to capture MB followed by thermal destruction. The intention of developers has been to provide a supply and disposal service by transporting the MB-laden carbon to a central processing site where it would be reprocessed or destroyed (Knapp et al 1998, Leesch et al 2000. A small commercial unit is in operation at Dallas/Fort Worth airport capturing MB from quarantine operations (McAllister and Knapp 1999) and a larger unit is now operating at a commercial berry fruit exporter's site in Watsonville, California (Knapp (2001).…”

Section: Destruction Technologiesmentioning

confidence: 99%

Expression of Heat Shock Protein Genes in Different Developmental Stages and After Temperature Stress in the Maize Weevil (Coleoptera: Curculionidae)

Tungjitwitayakul

Tatun

Vajarasathira

et al. 2015

Journal of Economic Entomology

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DisclaimerThe United Nations Environment Programme (UNEP), the Technology and Economic Assessment Panel (TEAP) Co-chairs and members, the TEAP Task Forces Co-chairs and members, and the companies and organisations that employ them do not endorse the performance, worker safety, or environmental acceptability of any of the technical options discussed. Every industrial operation requires consideration of worker safety and proper disposal of contaminants and waste products. Moreover, as work continues -including additional toxicity evaluation -more information on health, environmental and safety effects of alternatives and replacements will become available for use in selecting among the options discussed in this document.UNEP, the TEAP Co-chairs and members, and the Technology and Economic Assessment Panel Task Forces Co-chairs and members, in furnishing or distributing this information, do not make any warranty or representation, either express or implied, with respect to the accuracy, completeness, or utility; nor do they assume any liability of any kind whatsoever resulting from the use or reliance upon any information, material, or procedure contained herein, including but not limited to any claims regarding health, safety, environmental effect or fate, efficacy, or performance, made by the source of information.

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Methyl bromide adsorption on activated carbon to control emissions from commodity fumigations

Cited by 29 publications

References 0 publications

Review Article of Radio Frequency and Microwave Heating Treatment to Disinfest Kutu Beras in Malaysian Rice

Review Article of Radio Frequency and Microwave Heating Treatment to Disinfest Kutu Beras in Malaysian Rice

Methyl Bromide Recovery on Activated Carbon with Repeated Adsorption and Electrothermal Regeneration

Expression of Heat Shock Protein Genes in Different Developmental Stages and After Temperature Stress in the Maize Weevil (Coleoptera: Curculionidae)

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