Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Generation Pattern of Sulfur Containing Gases from Anaerobically Digested Sludge Cakes
Eleven dewatered sludge cakes collected from anaerobic digesters at different treatment plants were evaluated for the amount, type, and pattern of odorous gas production. All but one of the sludge cakes were from mesophilic anaerobic digesters. One was from a thermophilic digester. The pattern and quantities of sulfur gases were found to be unique for each of the samples with regard to the products produced, magnitude, and subsequent decline. The main odor‐causing chemicals were volatile sulfur compounds, which included hydrogen sulfide, methanethiol, and dimethyl sulfide. Volatile sulfur compound production peaked in 3 to 8 days and then declined. The decline was a result of conversion of organic sulfur compounds to sulfide. In one side‐by‐side test, a high‐solids centrifuge cake generated more odorous compounds than the low‐solids centrifuge cake. The data show that anaerobic digestion does not eliminate the odor potential of anaerobically digested dewatered cakes.
Generation Pattern of Sulfur Containing Gases from Anaerobically Digested Sludge Cakes
Eleven dewatered sludge cakes collected from anaerobic digesters at different treatment plants were evaluated for the amount, type, and pattern of odorous gas production. All but one of the sludge cakes were from mesophilic anaerobic digesters. One was from a thermophilic digester. The pattern and quantities of sulfur gases were found to be unique for each of the samples with regard to the products produced, magnitude, and subsequent decline. The main odor‐causing chemicals were volatile sulfur compounds, which included hydrogen sulfide, methanethiol, and dimethyl sulfide. Volatile sulfur compound production peaked in 3 to 8 days and then declined. The decline was a result of conversion of organic sulfur compounds to sulfide. In one side‐by‐side test, a high‐solids centrifuge cake generated more odorous compounds than the low‐solids centrifuge cake. The data show that anaerobic digestion does not eliminate the odor potential of anaerobically digested dewatered cakes.
Generation Pattern of Sulfur Containing Gases from Anaerobically Digested Sludge Cakes
Novak, John T. (Autor:in) / Adams, Gregory (Autor:in) / Chen, Yen‐Chih (Autor:in) / Erdal, Zeynep (Autor:in) / Forbes, Robert H. Jr (Autor:in) / Glindemann, Dietmar (Autor:in) / Hargreaves, J. Ronald (Autor:in) / Hentz, Lawrence (Autor:in) / Higgins, Matthew J. (Autor:in) / Murthy, Sudhir N. (Autor:in)
Water Environment Research ; 78 ; 821-827
01.08.2006
7 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Structure and Dewaterability in Anaerobically Digested Sludge
| British Library Conference Proceedings | 1996
Bioleaching of heavy metals from anaerobically digested sewage sludge
| Online Contents | 2008
Decomposition in Soil of Anaerobically Digested Olive Mill Sludge
| Online Contents | 1995
| American Chemical Society | 2024
Dewatering polymer conditioned anaerobically digested sludge using recessed-plate filter presses
| British Library Conference Proceedings | 1995