Mill scale as a ballasted flocculant for enhancing the
Oct 01 2020 · The weight ratio of mill scale dosage to the sludge MSsludge wt was set at 04 10 and 20 All the experiments were carried out in comparison with control run without addition of mill scale Followed by mixing the obtained mixture is transferred to the 1 L graduated glass cylinder and the settling behavior of activated sludge was observed