1. Extensive sludge in maturation lagoon (58% aggradation)2. Formation of scum in reactors
3. Constant need to remove and discard sludge from reactors and filters
4. Odour
Results:
Effluent from maturation lagoons substantially clearer, devoid of solids and odour
Absence of ‘dead zones’
Island of scum significantly reduced
Reduction in scum/sludge at outlets of maturation lagoons
Scum from the reactors completely consumed
Significant reduction in odour
Improvement in efficiency of plant- reductions in BOD and COD