A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Investigating the Capacity of an Activated Sludge Process to Reduce Volatile Organic Compounds and Odor Emissions
The effects of hydrogen sulfide (H 2S) diffusion into activated sludge (AS) on odor and volatile organic compound (VOC) concentrations in offgas were studied over an 8‐week period. Most VOCs detected in the offgas of both aeration tanks were aromatic hydrocarbons. The VOC concentrations generally decreased when H 2S was introduced to the AS compared with the control, indicating a negative effect of H 2S on VOC removal. Two volatile organic sulfur compounds present in the test AS offgas showed an increase followed by a decrease during H 2S peak loads. Six VOCs and odor concentration increased during the introduction of an H 2S peak; however no correlation was observed between H 2S and odor concentration. The increase in odor concentration resulted from the increase in the concentration of six aromatic VOCs, which had their removal slowed down during a 100‐ppmv H 2S peak. Activated sludge diffusion provides effective H 2S removal with minimal affect on odor emissions.
Investigating the Capacity of an Activated Sludge Process to Reduce Volatile Organic Compounds and Odor Emissions
The effects of hydrogen sulfide (H 2S) diffusion into activated sludge (AS) on odor and volatile organic compound (VOC) concentrations in offgas were studied over an 8‐week period. Most VOCs detected in the offgas of both aeration tanks were aromatic hydrocarbons. The VOC concentrations generally decreased when H 2S was introduced to the AS compared with the control, indicating a negative effect of H 2S on VOC removal. Two volatile organic sulfur compounds present in the test AS offgas showed an increase followed by a decrease during H 2S peak loads. Six VOCs and odor concentration increased during the introduction of an H 2S peak; however no correlation was observed between H 2S and odor concentration. The increase in odor concentration resulted from the increase in the concentration of six aromatic VOCs, which had their removal slowed down during a 100‐ppmv H 2S peak. Activated sludge diffusion provides effective H 2S removal with minimal affect on odor emissions.
Investigating the Capacity of an Activated Sludge Process to Reduce Volatile Organic Compounds and Odor Emissions
Barbosa, Vera (author) / Hobbs, Phil (author) / Sneath, Robert (author) / Burgess, Joanna (author) / Callan, Joanne (author) / Stuetz, Richard (author)
Water Environment Research ; 78 ; 842-851
2006-08-01
10 pages
Article (Journal)
Electronic Resource
English
Partition of Volatile Organic Compounds in Activated Sludge and Wastewater
| Taylor & Francis Verlag | 2006
Using Activated Carbon to Reduce the Volatile Organic Compounds from Bituminous Materials
| Online Contents | 2017