The methods used to treat and dispose sludge are: 1. Thickening of Sludge 2. Digestion or Stabilisation 3. Conditioning 4. Dewatering 5. Drying 6. Incineration or Thermal Reduction 7. Ultimate Disposal. 1. Thickening of Sludge: Sludge thickening is commonly achieved by the following three methods: (i) Gravity Thickening: Gravity thickening is the most common practice […]