1 “.... Traditionally, they have been used for urban and domestic wastewater treatment, but in the last two decades...”

2 “... have been developed. Each chapter of this book focuses on one specific technology, discussing its...”

3 “... been widely applied, a microbiological or microbe-based approach is attractive because it is based...”

4 “... been generally considered to be "black box." In recent years, with the development of several new high...”

5 “...Microbial or biological degradation has long been the subject of active concern, and the rapid...”