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CHARACTERIZATION AND CONTROL OF ODOR EMISSIONS FROM CONCENTRATED ANIMAL FEEDING OPERATIONS

LAMICHHANE, PRABHAT
http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155775834

Abstract Details

2006, MS, University of Cincinnati, Engineering : Environmental Science.
This thesis presents a dual investigation on odor emissions from concentrated animal feeding operations (CAFOs) in terms of characterization and control of such emissions. The first aspect of this research was focused on the development of a sampling method for the collection and analysis of the odor emissions with the objective to identify and characterize the compounds responsible for such emissions in animal facilities. The second aspect of this research was focused on the study of the performance of wet electrostatic precipitation (ESP) technology for the control of odor emissions from animal feeding operations. An innovative sampling method was developed employing a high-volume sampler and selected sorbent assembly that comprised of XAD, Charcoal and Silicagel, sandwiched between polyurethane foams (PUFs) for the collection of the odor causing compounds in the ambient air. Solvent extraction with dichloromethane (DCM) was employed for the extraction of the odor compounds from the sorbents. The concentrated DCM sample extracts were injected in the gas chromatography mass spectrometry (GCMS) for chromatographic analyses. The results from sampling and GCMS analysis for the ambient air sample from a dairy-farm near Columbus, Ohio showed the presence of odor causing compounds such as phenol, methyl phenol, ethyl phenol, benzyl alcohol, indole, methyl indole, valeric acid, isovaleric acid, hexanoic acid, 3-methyl indolizine, propyl phenol, etc. For the control purpose, results from wet ESP experiments involving hydrogen sulfide (H2S), the most significant constituent of odor emissions in animal facilities have shown removal efficiency upto 73.33 % under maximum power supply of 58 watts and at optimum residence time of 6 seconds with the water consumption at the rate of 4.5 gallons per minute. The theoretical minimum liquid requirement based on the equilibrium equations for conventional absorption tower to achieve the above mentioned removal efficiency was found to be ten times higher than the amount of liquid (water) actually used in the wet ESP operation thereby indicating that the wet ESP operation is more economic in terms of water consumption during the H2S removal process. More experimental results will be required to determine the optimum operating parameters and design characteristics to maximize the removal efficiency in the control of odor emissions from CAFOs with wet ESP operation.
Dr. Mingming Lu (Advisor)
156 p.
CAFOs; Odor Emissions; Wet ESP

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Citations

  • LAMICHHANE, P. (2006). CHARACTERIZATION AND CONTROL OF ODOR EMISSIONS FROM CONCENTRATED ANIMAL FEEDING OPERATIONS [Master's thesis, University of Cincinnati]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155775834

    APA Style (7th edition)

  • LAMICHHANE, PRABHAT. CHARACTERIZATION AND CONTROL OF ODOR EMISSIONS FROM CONCENTRATED ANIMAL FEEDING OPERATIONS. 2006. University of Cincinnati, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155775834.

    MLA Style (8th edition)

  • LAMICHHANE, PRABHAT. "CHARACTERIZATION AND CONTROL OF ODOR EMISSIONS FROM CONCENTRATED ANIMAL FEEDING OPERATIONS." Master's thesis, University of Cincinnati, 2006. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1155775834

    Chicago Manual of Style (17th edition)

ucin1155775834
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© 2006, all rights reserved.
This open access ETD is published by University of Cincinnati and OhioLINK.