Ch6 sludge treatment

Ch6 sludge treatment - Sludge Treatment & Disposal s...

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What is sludge? What is sludge? The concentration of solids that are removed from water and wastewater treatment systems, which needs to be treated and disposed of . Sludge of a seconadry sewage treatment system is a mixture of water (98-99%) and solids (1-2%), generated from: P Aeration  Tank Effluent Sludge returning O 2 Primary sludge Secondary sludge Primary  Sedimentation  Tank sewage
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Type of sludge 1) Primary sludge: settled solids at the primary sedimentation tank , containing both inorganic and organic particulate pollutants. Sludge characterization: solid content: 4-8% Odorous, gray-brown; easy to be dewatered. 2) Secondary sludge: cellular materials (biomass ) generated from microbial conversion of dissolved pollutants , which is withdrawn from the aeration tank as the excess sludge . Thus, the secondary sludge is mainly biological solids . Sludge characterization:
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Ch6 sludge treatment - Sludge Treatment & Disposal s...

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