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Behavior of the anaerobic treatment of tannery wastewater at different initial pH values and sulfate concentrations.
- Source :
-
Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering . Jul2013, Vol. 48 Issue 9, p1073-1078. 6p. - Publication Year :
- 2013
-
Abstract
- The influence of initial pH and sulfate concentration on the anaerobic digestion of tannery wastewater was studied using the specific methanogenic activity (SMA) test. The SMA tests were performed with a chemical oxygen demand (COD) concentration of 6.5 g/L and SO−24concentrations of 1.95, 3.90, 6.50, 8.45 and 10.4 g/L. The effect of pH was studied at pH 6.8; 6.4 and 6.1. It was found that methane production took place under all conditions, but the use of SO−24concentrations higher than 8.45 g/L and initial pH levels lower than 6.4 caused a decrease of up to 73% of methane production. The influence of pH was significant only for SO−24concentrations lower than 8.45 g/L, with up to 50% inhibition. Specific methanogenic activity for COD/SO−24ratios lower than 0.77 depends basically on this ratio and not on the initial pH value under the conditions of the study. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10934529
- Volume :
- 48
- Issue :
- 9
- Database :
- Academic Search Index
- Journal :
- Journal of Environmental Science & Health. Part A. Toxic/Hazardous Substances & Environmental Engineering
- Publication Type :
- Academic Journal
- Accession number :
- 86887088
- Full Text :
- https://doi.org/10.1080/10934529.2013.773827