Comparison of the characteristics of anaerobically digested sludge with similar and different retention times and its effect on dewaterability [The effect of anaerobic digestion on sludge dewaterability using raw and pre-hydrolysed sludge from conventional and novel plug-flow digester systems : The Ephyra® technology]

One of the most practiced ways of handling sludge before dewatering in the Netherlands is anaerobic digestion (AD) since it reduces the offensive features of sludge such as odor and pathogens. AD provides a great opportunity to recover resources from the sludge such as biogas and it reduces the amount of sludge cake to be disposed of. The effect of AD on dewaterability was reviewed in the literature. However, in the literature, there are discrepancies in findings regarding the effect of AD on the dewaterability of sludge. Also, most of the studies evaluated dewaterability with capillary suctio... Mehr ...