Aeration recirculation in air and high purity oxygen systems for control of VOV emissions from wastewater aeration basins

摘要

A steady state circulating aeration system(CAS)model has been used to study the effects of volatility and degradability on the fate of VOCs in both air and high purity oxygen(HPO)sys- tems. With an increase of the circulation ratio in an air CAS, air emissions by stripping can be significantly reduced for compounds of low degradability and high volatility. Enhance- ment of biodegradation is more significant for compounds of high degradability and volatility.