For the septic tank to function as an efficient suspended solids remover it should be of sufficient capacity with proper inlet and outlet arrangements. It should be designed in such a way that the sludge can settle at the bottom and the scum accumulates at the surface, while enough space is left in between, for […]
Design of Septic Tanks: 7 Considerations | Waste Management
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Sludge: Characteristics and Quantity | Waste Management
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In this article we will discuss about the characteristics and quantity of sludge produced in various sewage treatment processes. Characteristics of Sludge: Sludge consists of organic and inorganic solids present in the raw sewage and removed in the primary settling tanks plus organic solids produced during secondary treatment of sewage and removed in the secondary […]
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How to Treat and Dispose Sludge? | Waste Management
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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 […]