Detection of efficiency of microwave-enhanced sludge treatments by dielectric measurements

Microwave irradiation is a promising pre-treatment method for sludge stabilisation, but there are few studies focusing its effect on organic matter solubility and biodegradability of wastewater originated from the food industry. In our research, microwave was applied standalone in combination with alkaline treatment to enhance solubilisation biodegradation content meat industry municipal sludge, respectively. The energy efficiency investigated, as well. Dielectric measurement suitable detect physicochemical changes, therefore research work covered determination dielectric properties investigated materials. Our experimental results have revealed that lower power intensity microwave-alkaline treatments were most efficient process energetically aspects increase sludge. Furthermore, strong linear correlation found between constant indicators (SCOD/TCOD) aerobic (BOD/COD) both treated materials, show measurements can be detection predict improvement biodegradability, considered estimate methods.