Frear Publications

56 Publications

WRDC Rural Connections Newsletter: Climate Change issue

Western Rural Development Center’s Rural Connections Newsletter Climate Change issue June 2011┬ácontains three articles written by CSANR faculty and staff members. View the entire issue here (6 MB), or view the individual articles by clicking the titles here: Anaerobic Digestion in the Pacific Northwest; Climate Change and Family Forest Landowners in the Pacific Northwest: Attitudes & Understanding; Climate Change and Agriculture in the Pacific Northwest.

An Integrated Pathogen Control, Ammonia and Phosphorus Recovery System for Manure and/or Organic Wastes

C. Frear. May 2011. PowerPoint presentation at 2011 AgSTAR Conference.

Smale-Scale Biogas Plant Enterprise Assessment Tool

A worksheet to facilitate preliminary planning for a biogas plant on a small farm.

Biofuel Economics and Policy for Washington State

This report is a comprehensive response to 2007 Washington State legislation (HB 1303) that tasked Washington State University to 1) analyze the types and corresponding amounts of biofuel in the state and 2) recommend viable incentive programs to promote biofuel market development. Inside you will find policy recommendations based on analysis of a broad set of policy options, including renewable fuel standards and subsidies, carbon taxes, as well as approaches to support research, implementation of new technologies, and creation of infrastructure.

Leaching Bed Reactor for Producing Stabilized Plant Growing Media from Dairy Manure

Liao, W., Frear, C., Oakley, K., Chen, S. (2010). Biosystems Engineering 106(3), 278-285.

Bioenergy as an Agricultural GHG Mitigation Strategy in Washington State

Chapter 22 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Economic Evaluation of Commercial Dairy Anaerobic Digester

Chapter 4 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Baseline Performance Monitoring of Commercial Dairy Anaerobic Digester

Chapter 3 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Introduction to Anaerobic Digestion

Chapter 2 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Climate Friendly Farming Final Report: Improving the Carbon Footprint of Agriculture in the Pacific Northwest

The WSU Center for Sustaining Agriculture & Natural Resources established the Climate Friendly Farming Project in 2003 with an initial grant from the Paul G. Allen Family Foundation. This report represents the culmination of research and assessment of the potential for improved management and technology deployment to reduce agricultural greenhouse gas emissions in the Pacific Northwest.

Lessons Learned About Anaerobic Digestion

Chapter 12 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Development of New Digester Technologies for Improved Adoption and Cost Reduction

Chapter 11 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Application of AD Dairy Manure Effluent to Fields and Associated Impacts

Chapter 10 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Purification Technologies for Biogas Generated By Anaerobic Digestion

Chapter 9 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Integrated Ammonia Recovery Technology in Conjunction with Dairy Anaerobic Digestion

Chapter 8 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Phosphorous Recovery Technology in Conjunction with Dairy Anaerobic Digestion

Chapter 7 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Pretreatment of AD-Treated Fibrous Solid for Value-Added Container Media Market

Chapter 6 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Development of Co-Digestion Software Models to Assist in Plant Design and Co-Digestion Operation

Chapter 5 in Climate Friendly Farming: Improving the Carbon Footprint of Agriculture in the Pacific Northwest. Full report available at http://csanr.wsu.edu/pages/Climate_Friendly_Farming_Final_Report/.

Study of a two-stage growth of DHA-producing marine algae Schizochytrium limacinum SR21 with shifting dissolved oxygen level.

Chi, Z., Liu, Y., Frear, C., Chen, S., (2009) Applied Microbiology and Biotechnology 81(6), 1141-1148.

Organic Waste to Resources Research and Pilot Project Report: Waste to Fuels Technology: Evaluating Three Technology Options and the Economics for Converting Biomass to Fuels

Hayk Khachatryan, Ken Casavant, and Eric Jessup, Jie Chen, Shulin Chen, and Craig Frear, September 2009. This study further investigated biomass from the 2005 biomass inventory by comparing three fuel technologies: cellulosic biomass conversion by fermentation for ethanol, or gasification for mixed-alcohols, and anaerobic digestion of high volatile solids biomass for methane production. The study then integrated the major cost factors: biomass availability, feedstock prices, transportation costs, processing costs, and geographic distribution into a comprehensive model framework using GIS and MATLAB-SIMULINK models, to assess final delivered fuel cost.

Advanced small-scale anaerobic digester design tailored for household user living in cold climate

WSU Invention Disclosure.

Innovations in Anaerobic Digestion at WSU – Fall 2008

Article in Sustaining the Pacific Northwest Newsletter

Anaerobic digestion of dairy manure with enhanced ammonia removal

Uludag-Demirer, S., Demirer, G.N., Frear, C., Chen,S., (2008). Journal of Environmental Management 86:193-200

Evaluation of a new fixed bed digester design utilizing large size media for flushed dairy manure treatment

Zaher U., Frear C., Pandey, P. and Chen S. (2008). Bioresource Technology 99(18), 8619-8625.

High Quality Fiber and Fertilizer as Co-Products from Anaerobic Digestion

Kruger, C.E., Chen, S., MacConnell, C.B., Harrison, J.H., Shumway, C.R., Zhang, T., Oakley, K., Bishop, C., Frear, C., Davidson, D., and Bowers, K. (2008). Journal of Soil and Water Conservation. 63(1), 12A-13A.

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