Fenton peroxidation improves the drying performance of waste activated sludge.

摘要: Abstract Advanced sludge treatment processes (AST) reduce the amount of produced and improve dewaterability, thus probably also affecting heat transfer properties drying characteristics sludge. This paper studies influence Fenton peroxidation on thermal conductivity Results demonstrate that Fenton's positively influences cake consistency hence enhances mechanical dewaterability dewatered For two sludges used in this study, i.e. obtained from wastewater plants (WWTP) Tienen Sint-Niklaas – dry solids content mechanically increased 22.5% to 40.3% 18.7% 35.2%, respectively. The effective ke untreated peroxidized is measured determine coefficient hs. An average improvement for 16.7% (Tienen) 5.8% (Sint-Niklaas) was observed. Consequently value hs with 15.6% 5.0% (Sint-Niklaas). combination has direct implications design dryers. A plate-to-plate calculation a multiple hearth dryer illustrates number plates required 90% DS less than half needed results reduced dimensions or higher capacity an existing given dimensions.