Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7714639 | International Journal of Hydrogen Energy | 2015 | 5 Pages |
Abstract
Production of hydrogen is influenced by the pH, the concentration of organic matter, and the concentration of sludge. A short-term test is presented in which the specific hydrogenic activity of a waste sludge is calculated in order to quantify its hydrogen production capacity. To determine the ideal conditions for the measurement of SHA was used glucose in concentrations of 1000; 2000; 4000; 8000; 12,000; 16,000; and 20,000 mg O2 Lâ1; sludge in concentrations of 1250; 2500; 5000; and 7500 mg TVS Lâ1; and pH adjustments of 5.0; 5.5; 6.0; and 6.5. Given the initial concentration of soluble COD of 12,000 mg O2 Lâ1, sludge concentration of 2500 mg TVS Lâ1, and pH of 6.0, the highest SHA obtained was 483 mLH2 g TVSâ1 hâ1. As to volumetric measurements, given the initial concentration of organic matter of 8000 mg Lâ1, biomass concentration of 5.000 mg TVS Lâ1, and pH of 5.5, the volume of produced hydrogen per mass of soluble COD added reached a maximum of 38 mL gCODâ1.
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Viviane Trevisan, Luiz Olinto Monteggia, Henrique dos Santos Delabary,