Two units in parallel in a 650PE WWTP
In accordance with the waste hierarchy, the minimisation of sludge is the next most preferred waste solution after prevention.
There is potential to reduce the volume of both municipal and industrial sludge for transport by 70% to 80% by optimising sludge thickening. Traditional sludge dewatering techniques has a relatively high operational cost due to the labour, power, machinery, chemicals and capital maintenance requirements. In addition transportation is a significant part of sludge management in terms of environmental impacts and cost.