| Title: | The effect of iron and aluminium for phosphorus removal on anaerobic digestion and organic sulfur generation |
| Address: | "Department of Civil & Environmental Engineering, Virginia Tech, Blacksburg, VA 24061, USA. jtnov@vt.edu" |
| ISSN/ISBN: | 0273-1223 (Print) 0273-1223 (Linking) |
| Abstract: | "The addition of iron or aluminium into activated sludge basins for phosphorus removal is likely to impact both the efficiency of the anaerobic digestion process and the generation of odor-causing compounds following digestion and dewatering. In this study, the impact of iron and aluminium addition on digestion and odor-causing compounds was investigated by using batch digestion of combined primary and waste activated sludge. It was found that aluminium addition resulted in a decrease in volatile solids destruction by anaerobic digestion of approximately 2%. Of the 7 sludges tested, 5 showed a small increase in volatile solids destruction after iron addition. With regard to the generation of organic sulfur odors from the dewatered sludge cakes, both iron and aluminium reduced odor-causing gases except for one sludge that had already received iron for phosphorus control in the full-scale process. It appears that iron and aluminium addition will benefit odor control" |
| Keywords: | "Aluminum/*chemistry Anaerobiosis *Bioreactors Iron/*chemistry Phosphorus/*chemistry Sulfur/*chemistry/metabolism Waste Disposal, Fluid/methods Water Pollutants, Chemical/chemistry;" |
| Notes: | "MedlineNovak, John T Park, Chang Min eng England 2010/07/24 Water Sci Technol. 2010; 62(2):419-26. doi: 10.2166/wst.2010.300" |
