Evaluation of an integrated ammonia stripping, recovery, and biogas scrubbing system for use with anaerobically digested dairy manure
Jiang, A., Zhang, T., Zhao, Q., Chen, S., Li, X., Frear, C. (2014). Biosystems Engineering, 119: 117-126.
J. Ma, B. Zhao, C. Frear, Q. Zhao, L. Yu, X. Li, S. Chen. June 2013.Bioresource Technology Volume 137, June 2013, Pages 41–50.
A simple methodology for rate-limiting step determination for anaerobic digestion of complex substrates and effect of microbial community ratio
J. Ma, C. Frear, Z. Wang, L. Yu, Q. Zhao, X. Li, S. Chen. Bioresource Technology. Volume 134, April 2013, Pages 391–395.
J. Ma, L. Yu, C. Frear, Q. Zhao, X. Li, S. Chen. Bioresource Technology. Volume 131, March 2013, Pages 6–12.
Biogas potential and microbial population distributions in flushed dairy manure and implications on anaerobic digestion technology
Frear, C., Wang, Z., Li, C., Chen, S., (2011). Journal of Chemical Technology & Biotechnology, 86:145-152.
Biogas production from anaerobic co-digestion of food waste with dairy manure in a two-phase digestion system
Li, R., S. Chen, X. Li. (2010). Applied Biochemistry and Biotechnology 160(2),643-654.
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/.
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/.
Organic Waste to Resources Research and Pilot Project Report: Producing Energy and Fertilizer from Organic Municipal Solid Waste: Enhancing Hydrolysis and Bacterial Populations and Mixing and Thermodynamic Modeling of New Solid Waste Treatment Technology
Usama Zaher, Shulin Chen, Chenlin Li, Liang Yu, and Timothy Ewing, June 2009. This project developed, tested and modeled a high solids anaerobic digester consisting of a solids reactor and a leached liquids UASB for reacting volatile fatty acids. At near neutral pH the system improves methane production 50% over existing digesters, while return flow reseeds the solids digester with high titer micro-organisms that improved biological kinetics. The dual reactors system provides for control of digester limiting acid and ammonia processes, while allowing for nutrient recovery, and significantly improves performance for capital outlay.
Zaher, U., R. Li, U. Jeppsson, J.P. Steyer, S. Chen (2009). Water Research 43(10), 2717-2727.