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Item Information   Holdings       More by this author     Simich, Jennifer M.     Subjects     Agricultural wastes     Animal wastes     Biogas     Waste products as fuel     Ultrafiltration.     Sewage sludge digestion     Sewage -- Purification -- Biological treatment     Piping     MSEV Project.     Browse Catalog     by author:      Simich, Jennifer M.       by title:      An economic analysis...         MARC Display

An economic analysis of using thermophilic anaerobic digestion followed by ultrafiltration for the treatment of dairy wastes / Jennifer M. Simich. by Simich, Jennifer M. Subjects Agricultural wastes   Animal wastes   Biogas   Waste products as fuel   Ultrafiltration.   Sewage sludge digestion   Sewage -- Purification -- Biological treatment   Piping   MSEV Project. Description:  93 leaves : figures, tables ; 29 cm. Contents:  Advisor: Dr. William Gonwa Committee members: Dr. Francis Mahuta, Kenneth Kaszubowski Introduction and background -- Literature review -- Materials and methods of investigation -- Financial analysis -- Conclusion/recommendation -- Appendices A) Additional figures B) Degester storage tank cost quote C) Mixer system cost quote D) Sludge transfer pump cost quote E) Sludge drying bed cost quote F) Ultrafiltration cost quote nformation G) Heat exchanger information H) Triad Engineering pilot system data. Frost Farms is an 800-cow dairy farm located in Waterford, Wisconsin. Currently, animal waste at the farm is collected below the housing and milking parlors and stored until it is landspread. Due to struct regulations, landspreading can only be done twice a year. There are many possibilities for treating the animal waste at Frost Farms to produce more usable byproducts. One process is that of thermophilic anaerobic digestion of the waste followed by ultrafiltration solids separation. An analysis of the equipment costs, utilities costs, and the net present value of installing such a system was performed. Other factors considered in the analysis were the beneficial byproducts of using the system--including biosolids bedding material, biogas for energy production, and cleaner effluent that can be used in a variety of ways. The analysis found that while the costs of installing a thermophilic anaerobic digestion and ultrafiltration system are significantly higher than simply storing the waste until it is used, there are a variety of benefits that cannot be measured quantitatively. Some of these quantitative benefits are proactively meeting stricter waste storage and land application regulations, being self-sufficient on biogas energy and supplying surrounding areas with a renewable energy source. The high costs of the system may be minimized by installing the system in phases, starting with the anaerobic digestion and then adding the ultrafiltration process.   Copy/Holding information Location Collection Call No. Status   Walter Schroeder Library Master's Theses AC805 .S5565 2004 Available Add Copy to MyList Format: HTMLPlain textDelimited Subject:   Email to:

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