Publications

books

  • ANAEROBIC BIOTECHNOLOGY FOR BIOENERGY PRODUCTION: Principles and Applications (2nd edition in preparation, Dec 2012).

A 21-Chapter book giving complete coverage from field to wheel: Publisher American Society of Civil Engineers (ASCE) (Lead Editor and Contributor).

Book chapters

  • Takara, D., and Khanal, S. K. 2012. Biomass pretreatment for biofuel production.In Sustainable Bioenergy and Bioproducts. (eds. K. Gopalakrishnan, H. van Leeuwen, and R. Brown). Springer-Verlag Inc., London, UK. pp 59-70.
  • Shrestha, P., Pometto III. A.L., Khanal, S. K., and Van Leeuwen, J.  2012. Second-generation biofuel production from corn-ethanol industry residues.In Sustainable Bioenergy and Bioproducts. (eds. K. Gopalakrishnan, H. van Leeuwen, and R. Brown). Springer-Verlag Inc., London, UK. pp 71-87.
  • Khanal, S. K., and Munasinghe, P. Biomass-derived syngas fermentation into biofuels. In Biofuels: Alternative Feedstocks and Conversion Processes. (eds. A. Pandey, C. Larroche, S.C. Ricke and C.G. Dussap). Elsevier Inc. USA. (in-press).
  • Nitayavardhana, S., and Khanal, S. K. Biodiesel Biorefinery: Value-added products from lipid-based-feedstocks-to-biodiesel residues. In Bioenergy and Bioproducts (eds. K. Gopalakrishnan, H. van Leeuwen, and R. Brown). Springer-Verlag Inc. (in-press)
  • Takara, D., and Khanal, S. K. Biomass pretreatment for advanced biofuel production. In Bioenergy and Bioproducts (eds. K. Gopalakrishnan, H. van Leeuwen, and R. Brown). Springer-Verlag Inc. (in-press)
  • Khanal, S. K., and Lamsal, B. P. (2010). Biofuel and bioenergy production: some perspectives. In Biofuel and Bioenergy from Biowastes and Lignocellulosic Biomass. (eds. Samir. K. Khanal et al.). American Society of Civil Engineers. Reston, VA, USA.
  • Takara, D., Shrestha, P., and Khanal, S. K. 2010. Lignocellulosic biomass pretreatment. In Biofuel and Bioenergy from Biowastes and Lignocellulosic Biomass. (eds. Samir. K. Khanal et al.). American Society of Civil Engineers. Reston, VA, USA.
  • Shrestha, P., Lamsal, B. P. and Khanal, S. K. 2010. Preprocessing of lignocellulosic biomass for biofuel production. In Biofuel and Bioenergy from Biowastes and Lignocellulosic Biomass. (eds. Samir. K. Khanal et al.). American Society of Civil Engineers. Reston, VA, USA.
  • Lamsal, B. P., Shrestha, P., and Khanal, S. K. 2010. Enzymatic hydrolysis of lignocellulosic biomass for biofuel production. In Biofuel and Bioenergy from Biowastes and Lignocellulosic Biomass. (eds. Samir. K. Khanal et al.). American Society of Civil Engineers. Reston, VA, USA.
  • Gadhamshetty, V., Nirmalakhandan, N., Khanal, S. K., and Johnson, G. R. 2010. Bioreactor systems for biofuel/bioelectricity production. In Biofuel and Bioenergy from Biowastes and Lignocellulosic Biomass. (eds. Samir. K. Khanal et al.). American Society of Civil Engineers. Reston, VA, USA.
  • Shrestha, P., Rasmussen, M.R., Nitayavardhana, S., Khanal, S. K., and Van Leeuwen. J. 2010.  Bioreactor systems for biofuel/bioelectricity production. In Biofuel and Bioenergy from Biowastes and Lignocellulosic Biomass. (eds. Samir. K. Khanal et al.). American Society of Civil Engineers. Reston, VA, USA.
  • Khanal, S.K., Takara, D., Shrestha, P., and Lamsal, B. P. 2010. Ultrasound applications in biofuel and bioenergy production. In Green Chemistry for Environmental Sustainability (eds. Ackmez Mudhoo and S. K. Sharma). CRC Press Taylor & Francis Group LLC, Boca Raton, Florida.

Report

  • Khanal, S. K., Turn S. and Kinoshita, C. 2009. Conversion technology. In Hawaii Bioenergy Master Plan Report. (more info)

Manual

  • Khanal, S. K. and Takara D. (2011). Bioenergy Laboratory Manual for High and Middle School Science Teachers.

Refereed Journal Paper

year 2012

  • Nitayavardhana, S., Kerati, I, Pavasant, P., and Khanal, S. K. Optimization of protein-rich fungal biomass, Rhizopus oligosporus production on vinasse in an airlift bioreactor system for aquatic feed applications. Bioresource Technology (submitted).
  • Rakshit, D. K., Bingham, J. P., and Khanal, S. K. New and modified high performance liquid chromatography method for rapid quantification of phorbol esters in Jatropha curcas seed. Bioresource Technology (submitted).
  • Zhen, H., Lee, J. W., Chandran, K., Kim, S., Sharma, K., and Khanal, S. K. Nitrous oxide emission from intensive aquaculture system. Biotechnology and Bioengineering (submitted).
  • K.C., S., Hashimoto, A.G., and Khanal, S. K. Biogas as a sustainable energy source for the developing countries: Opportunities and challenges. Renewable and Sustainable Energy Reviews (accepted).
  • Takara, D., Nitayavardhana, S., Munasinghe, P.C, K.C., S., and Khanal, S. K. 2010. Sustainable Bioenergy from Biofuel-Derived Residues. Water Environment Research (in-press).
  • Zhen, H., Lee, J. W., Chandran, K., Kim, S., and Khanal, S. K. Nitrous oxide (N2O) emission from aquaculture system: A review. Environmental Science and Technology (in-press).
  • Munasinghe, P., and Khanal, S. K. Syngas fermentation to biofuel: evaluation and modeling of carbon monoxide mass transfer using a composite hollow fiber (CHF) membrane bioreactor. Bioresource Technology (in-press).
  • Montalbo-Lomboy, M., Khanal, S. K.,Van Leeuwen, J., Raman, D. R., and Grewell, D., Simultaneous saccharification and fermentation and economic evaluation of ultrasonic and jet cooking pretreatment of corn slurry. Biotechnology Progress (in-press).
  • Nitayavardhana, S., and Khanal, S. K. 2012. Biofuel residues ban or boon? Critical Reviews in Environmental Science and Technology. 42 (1): 1-43.

year 2011

  • K. C., Surendra, Khanal, S. K., Shrestha, P., and Lamsal, B. P. 2011. Current Status of Renewable Energy in Nepal: Opportunities and Challenges. Renewable and Sustainable Energy Reviews. 15 (1): 4107-4117.
  • Nitayavardhana, S., and Khanal, S. K. 2011. Biodiesel-derived crude glycerol bioconversion to animal feed: A sustainable option for a biodiesel refinery. Bioresource Technology.102 (10): 5808-5814.
  • Takara D., and Khanal, S. K. 2011. Green processing of tropical banagrass into biofuel and biobased products: An innovative biorefinery approach. Bioresource Technology. 102 (2): 1587-1592.

year 2010

  • Munasinghe, P.C., and Khanal, S. K. 2010. Syngas fermentation to biofuel: Evaluation of carbon monoxide mass transfer coefficient (kLa) in different reactor configurations. Biotechnology Progress. 26 (6): 1616-1621.
  • Takara, D., Nitayavardhana, S., Pinowska, A., and Khanal, S. K. 2010. Sustainable Bioenergy from Biofuel Residues and Wastes. Water Environment Research. 82 (10):1694-1719.
  • Mitra, D., Pometto III, A. L., Khanal, S. K., Byron, B.S., and Van Leeuwen, J. 2010. Value-added production of nisin from soy whey. Applied Biochemistry and Biotechnology. 162 (7): 1819-1828.
  • Nitayavardhana, S., and Khanal, S. K. 2010. Innovative biorefinery concept for sugar-based ethanol industries: production of protein-rich fungal biomass on vinasse as an aquaculture feed ingredient. Bioresource Technology.101 (23): 9078-9085.
  • Shrestha, P., Khanal, S. K., Pometto, A. L., and Van Leeuwen, J. 2010. Ethanol production via in-situ fungal saccharification and fermentation of mild alkali and steam pretreated corn fiber. Bioresource Technology. 101 (22): 8698-8705.
  • Rasmussen, M., Khanal, S. K., Pometto III, A.L., and Van Leeuwen, J. 2010. Sequential saccharification of corn fiber and ethanol production by the brown rot fungus Gloephyllum trabeum. Bioresource Technology. 101(10): 3526–3533.
  • Montalbo-Lomboy, M., Khanal, S. K.Van Leeuwen, J., Raman, D. R. Dunn, L. Jr., and Grewell, D. 2010. Ultrasonic pretreatment of corn slurry for saccharification: A comparison of batch and continuous systems. Ultrasonics Sonochemistry. 17(5): 939-946.
  • Sindhuja, S., Khanal, S. K., Pometto, A. L., Jin, B., and Van Leeuwen, J. 2010. Use of microfungi for production of high value fungal by-products: A review. Critical Reviews in Environmental Science and Technology. 40 (5):1-49.
  • Munasinghe, P.C., and Khanal, S. K. 2010. Syngas fermentation to biofuels: Challenges and opportunities. Bioresource Technology, Special Issue on Lignocellulosic Bioethanol: Current Status and Perspectives on Lignocellulosic Ethanol.  101 (13): 5013-5022.
  • Seng, B., Khanal, S. K., and Visvanathan, C. 2010. Anaerobic digestion of combined ultrasound and chemical pretreated waste activated sludge. Environmental Technology. 31 (3): 257-265.
  • Nitayavardhana, S., Shrestha, P.  Rasmussen, M.,  Lamsal, B. P. and Van Leeuwen, J., and Khanal, S. K. 2010. Ultrasound improved ethanol fermentation from cassava chips in cassava-based ethanol plants. Bioresource Technology.10(8): 2741-2747.
  • Karki, B., Lamsal, B. P., Grewell, D., Jung, S., Pometto, A. L., Van Leeuwen, J., and Khanal, S. K. 2010. Enhancing Protein and Sugar Release from Defatted Soy Flakes using Ultrasound Technology. Journal of Food Engineering. 96(2): 270-278.
  • Montalbo-Lomboy, M., Johnson, L., Khanal, S. K., Van Leeuwen, J., and Grewell, D. 2010. Sonication of sugary-2 corn: A potential pretreatment to enhance sugar release. Bioresource Technology. 101(1): 351-358.

Year 2009

  • Shrestha, P., Khanal, S. K., Pometto III, A. L., and Van Leeuwen, J. 2009. Corn fiber induced extracellular enzymes production by wood rot and soft rot fungi for subsequent fermentation of hydrolyzate to ethanol. J. of Agricultural and Food Chemistry. 57: 4145-4161.
  • Karki, B., Lamsal, B. P., Grewell, D., Pometto, A. L., Van Leeuwen, J. and Khanal, S. K. and Jung, S. 2009. Functional Properties of Soy Protein Isolates Produced from Ultrasonicated Defatted Soy Flakes. J. of the American Oil Chemist Society. 86(10):1021-1028.
  • Jasti, N., Rasmussen, M., Khanal, S. K., Pometto III, A.L., and Van Leeuwen, J. 2009. Influence of selected operating parameters on fungal biomass production in corn-ethanol wastewater. Journal of Environmental Engineering (ASCE).135 (11):1106-1114.

Year 2008

  • Jasti, N., Khanal, S. K.,  Pometto III, A.L., and Van Leeuwen, J. 2008. Converting corn wet milling effluent into high-value fungal biomass in an attached growth bioreactor. Biotechnology and Bioengineering. 101(6):1223-1233.
  • Sindhuja, S., Khanal, S. K., Pometto, A. L., and Van Leeuwen, J. 2008. Ozone as a selective disinfectant for nonaseptic fungal cultivation on corn-processing wastewater. Bioresource Technology.99(17): 8265-8272.
  • Khanal, S. K., Shrestha, P., Rasmussen, M., Lamsal, B.P., Visvanathan, C., Liu H., and Van Leeuwen, J. 2008. Bioenergy and biofuel production from wastes/residues of emerging biofuel industries. Water Environment Research. 80 (10): 1625 –1647.
  • Nitayavardhana, S., Rakshit, S. K., Grewell, D. Van Leeuwen, J., and Khanal, S. K. 2008. Ultrasound pretreatment of cassava chips to enhance sugar release for subsequent ethanol production. Biotechnology and Bioengineering. 101(3): 487-496.
  • Shrestha, P., Rasmussen, M., Khanal, S. K., Pometto, A.L. and Van Leeuwen, J. 2008. Solid-state fermentation of corn fiber by Phanerochaete chrysosporium and subsequent fermentation of hydrolysate into ethanol. Journal of Agriculture and Food Chemistry. 56 (11): 3918 – 3924.
  • Xie, B., Khanal, S. K., Van Leeuwen, J., Veysey, S. W., and Thompson, M. L. 2008. Sorption of Steroidal Hormones By Two Iowa Soil Materials: Detection and Modeling. Soil Science. 173 (9): 602-612.

Year 2007

  • Khanal, S. K., Montalbo, M., Van Leeuwen, J., Srinivasan, G., and Grewell, D. 2007. Ultrasound enhanced glucose release from corn in ethanol plants. Biotechnology and Bioengineering. 98 (5): 978-985.
  • Ho, J., Khanal, S. K., and Sung, S. 2007. Anaerobic membrane bioreactor for treatment of synthetic municipal wastewater at ambient temperature. Water Science and Technology. 55 (7): 79-86.
  • Khanal, S. K., Grewell D, Sung, S., and Van Leeuwen, J. 2007. Ultrasound applications in wastewater sludge pretreatment: A review. Critical Reviews in Environmental Science and Technology. 37 (4): 277-313. (Most cited paper).

Year 2006

  • Khanal, S. K., Xie, B., Ong, S. K., Thompson, M. L., Sung, S., and Van Leeuwen, J. 2006. Fate, transport and biodegradation of natural estrogens in the environment and engineered systems-A review. Environmental Science and Technology. 40 (21): 6537-6546. (Most cited paper).
  • Chen, W.-H., Chen, S.-Y., Khanal S. K., and Sung, S. 2006. Kinetic study of biological hydrogen production by anaerobic fermentation. International Journal of Hydrogen Energy. 31(15): 2170-2178.
  • Akin, B., Khanal, S. K., Sung, S., Grewell, D., and van Leeuwen, J. 2006. Ultrasound pre-treatment of waste activated sludge: effect of specific energy input and total solids on sludge disintegration. Water Science and TechnologyWater Supply: 6(6): 35-42.
  • Khanal, S. K., and Huang, J.-C. 2006. Online oxygen control for sulfide oxidation in anaerobic treatment of high sulfate wastewater. Water Environment Research. 78 (4): 397-408.
  • Khanal, S. K., Chen, W.-H., Li, L., and Sung, S. 2006. Biohydrogen production in continuous flow reactor using mixed microbial culture. Water Environment Research. 78 (2): 110-117.
  • Foulkes, B., Khanal, S. K., and Sung, S. 2006. Bioleaching of zinc and copper from anaerobically digested swine manure: effect of sulfur levels and solid contents. Water Environment Research. 78 (2): 202-208.
  • Jasti, N., Khanal, S. K., Pometto, A. L., and Van Leeuwen, J. 2006. Fungal treatment of corn processing wastewater in an attached growth system. Water Science and Practice. 1 (3): 1-8.

Year 2005

  • Khanal, S. K. and Huang, J.-C. (2005). Effect of high influent sulfate on anaerobic wastewater treatment. Water Environment Research, 77(7), 3037-3046.

Year 2004

  • Khanal, S. K . , Chen, W.-H., Li, L. and Sung, S. (2004). Biological hydrogen production: effects of pH and intermediate products. International Journal of Hydrogen Energy, 29(11), 1123-1131.
  • Huang, J.-C. and Khanal, S. K. (2004). Treatment of high sulfate and high strength wastewater in a single stage anaerobic reactor. Water Science and Technology-Water Supply, 4 (1), 35-45.

Year 2003

  • Khanal, S. K. and Huang, J.-C. (2003). Anaerobic treatment of high sulfate wastewater with oxygenation to control sulfide toxicity. J. Environmental Engineering, ASCE, 129(12), 1104 1111.
  • Khanal, S. K., Shang, C. and Huang, J.-C. (2003). Use of oxidation-reduction potential (ORP) to control oxygen dosing for online sulfide oxidation in anaerobic treatment of high sulfate wastewater. Water Science and Technology, 47(12), 183-189.
  • Khanal, S. K. and Huang, J.-C. (2003). ORP based oxygenation for sulfide control in anaerobic treatment of high sulfate wastewater. Water Research, 37(9), 2053-2062.

MY UH-MANOA WEBSITE