Reduction of sewage sludge by ball mill pretreatment and Mn .The effects of ball mill pretreatment and Mn catalytic ozonation on the reduction of sewage sludge were investigated. The ball mill pretreatment increased.ball mill waste water sludge,Anaerobic digestion of pulp and paper mill wastewater and sludge.Jul 24, 2014 . The anaerobic treatment of mill wastewater is widely accepted however, usually only applied to few selected streams. Chemical oxygen.
ball mill waste water sludge