Inhibition of biohydrogen production by ammonia

Water Research
Michael B SalernoBruce E Logan

Abstract

Ammonia inhibition of biohydrogen production was investigated in batch and continuous flow reactors with glucose as a substrate. In batch tests, biohydrogen production rate was highly dependent on pH and ammonia (defined as the sum of NH3 of NH4+ species) concentrations above 2 g N/L. At pH = 6.2, the maximum production decreased from 56 mL/h at 2 g N/L to 16 mL/h at 10 g N/L. At pH = 5.2, production decreased from 49 mL/h (2g N/L) to 7 mL/h (16 g N/L). Hydrogen yield remained relatively constant in batch tests, varying from 0.96 to 1.17 mol-H2/mol-glucose. In continuous flow tests, both hydrogen production rates and yields were adversely affected by ammonia. When the reactor (2.0 L) was first acclimated under batch conditions to a low nitrogen concentration (<0.8 g N/L), H2 production and yields under continuous flow mode conditions were 170 mL/h and 1.9 mol-H2/mol-glucose, but decreased with increased ammonia concentrations up to 7.8 g N/L to 105 mL/h and 1.1 mol-H2/mol-glucose. There was no hydrogen production under continuous flow conditions if the reactor was initially operated under batch flow conditions at ammonia concentrations above 0.8 g N/L. It is concluded that the hydrogen production is possible at high concentrati...Continue Reading

References

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Sep 1, 2005·Water Research·Steven W Van Ginkel, Bruce Logan

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Citations

Feb 25, 2014·Applied Biochemistry and Biotechnology·B B RomãoV L Cardoso
Mar 28, 2012·Bioprocess and Biosystems Engineering·Hui WangShenghua Ma
Mar 27, 2007·Applied Microbiology and Biotechnology·Fan LüDuu-Jong Lee
Apr 16, 2015·International Journal of Molecular Sciences·Kuppam ChandrasekharDong-Woo Lee
Mar 20, 2013·New Biotechnology·Zazil D Alvarado-CuevasAntonio De León-Rodríguez
Apr 17, 2012·Journal of Biotechnology·Gennady M AnanyevG Charles Dismukes
May 31, 2011·Bioresource Technology·A J GuwyG Premier
Apr 15, 2011·Bioresource Technology·Kyung-Won JungHang-Sik Shin
Aug 3, 2010·Bioresource Technology·Karnayakage Rasika J Perera, Nagamany Nirmalakhandan
Apr 28, 2009·Bioresource Technology·P Shanmugam, N J Horan
Sep 24, 2008·Bioresource Technology·Bo WangJianlong Wang
May 20, 2008·Bioresource Technology·Keri B CantrellPatrick G Hunt
Aug 19, 2007·Journal of Bioscience and Bioengineering·Hiroshi YokoyamaYasuo Tanaka
Mar 14, 2018·NPJ Biofilms and Microbiomes·Elio Emilio GonzoVeronica B Rajal
Apr 27, 2010·Journal of Environmental Science and Health. Part A, Toxic/hazardous Substances & Environmental Engineering·Z MilanR Borja
May 29, 2008·Environmental Science & Technology·Hyung-Sool LeeBruce E Rittmann

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