A study was undertaken to develop low-temperature, operating, and performance guidelines for aerobic digestion of waste-activated sludge. With high-rate activated sludge as feed, various modes of ...

This is a preview. Log in through your library . Abstract Production of a stable, nonodorous residue and volatile solids reduction are objectives of most sludge-processing techniques. The ...

DEFINITION: The process of breaking down organic matter, commonly sewage or animal and food waste, into carbon dioxide, hydrogen sulfate and water. It is a bacterial process that requires the presence ...

A Penn State-led team of environmental engineers has developed an Odor Index, a standardized, instrument-based process to rate the "smelliness" of an air sample and identify the offending chemical ...