Biological Hydrogen Production Measured in Batch Anaerobic

Bruce E. Logan,* Sang-Eun Oh, In S. Kim, and Steven. Van Ginkel: Biological Hydrogen Production Measured in Batch. Anaerobic Respirometers. Page 2531...
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2002, Volume 36, 2530-2535 Bruce E. Logan,* Sang-Eun Oh, In S. Kim, and Steven Van Ginkel: Biological Hydrogen Production Measured in Batch Anaerobic Respirometers Page 2531. The text below eq 1 did not correctly identify subscripts used in the equation and should read as follows: “where VH,i and VH,i-1 are cumulative hydrogen gas volumes at the current (i) and previous (i - 1) time intervals, respectively; VG,i and VG,i-1 are the total biogas volumes in the current and previous time intervals; CH,i and CH,i-1 are the fraction of hydrogen gas in the headspace of the bottle measured using gas chromatography in the current and next previous intervals; and VH is the total volume of headspace in the reactor (44 mL).” Page 2533. Table 1 contained incorrectly calculated values and should be replaced by the following table:

TABLE 1. Summary of Total Biogas and Hydrogen Gas Production Measured Using Substrates (S)a

substrate (formula)

g of COD (mmol)

biogas (mL)

mL

glucose (C6H12O6) sucrose (C12H22O11) molasses potato starch [(C6H10O5)n] lactate (C3H5O3Na) cellulose [(C6H10O5)n]

1.0 (5.21) 1.0 (2.6) 1.3 (-)b 1.0 (5.21) 1.0 (11.36) 1.0 (5.21)

244 217 233 134 7.2 0.96

125 131 134 90 2.3 0.6

H2 produced mol/mol of S 0.98 2.05 b 0.70 0.008 0.005

maximum H2 production (mol/mol of S)

conversion (%)

4 8 b 4 2 4

24.5 25.6 b 17.6 0.4 0.1

a Substrate conversion efficiencies assume production of acetate as the organic carbon end product in order to calculate the indicated maximum production of H2. b Cannot be calculated.

ES030314X 10.1021/es030314x

10.1021/es030314x CCC: $25.00 Published on Web 01/24/2003

 2003 American Chemical Society

VOL. 37, NO. 5, 2003 / ENVIRONMENTAL SCIENCE & TECHNOLOGY

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