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WASTE WATER TREATMENT MAJID MOHIUDDIN
Waste Water Treatment ,[object Object],[object Object],[object Object]
Four Levels of Waste water treatment. ,[object Object],[object Object],[object Object],[object Object]
Raw waste water  Screening Chamber Grit Primary setting tank  Aeration  Tank Secondary Settling Tank Effluent Sludge  thickener Anaerobic digestion Sludge thickener Sludge Disposal Primary sludge Sludge recycling (30-40%) Activated sludge (Secondary sludge) Grit Chamber
 
Preliminary Treatment ,[object Object],[object Object],[object Object],[object Object],[object Object]
Primary Treatment ,[object Object]
Primary Sedimentation tanks (or) Clarifiers (or) rectangular basins 3 – 5 m deep Hydraulic retention time 2 and 3 hrs. Radial flow pattern Scraper truss arm Rotating arm Scraper blades Sludge Hopper Primary Sludge Clean surface water Weir 30% BOD, 50-70% Total Suspended Solids and 65% of the oil and grease are removed during primary treatment. And some organic and phosphorus also. Primary effluent
 
Secondary Treatment (Biological Treatment) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Biological treatment Processes  (Aerobic Process) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
Activated Sludge Process
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
 
 
 
 
[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
Rotating Biological Contactors (RBC) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
 
STABILIZATION POND ,[object Object],[object Object],[object Object],[object Object]
 
 
Aerated Lagoon ,[object Object],[object Object],[object Object],[object Object]
Anaerobic Treatment ,[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
 
 
 
Water containing complex organic matter (Carbohydrates, Proteins, Lipids) Hydrolysis (Extracellular enzymes) Simple Organic Compounds (Sugar, amino acids, peptides) H 2 , CO 2 , Organic acids, Alcohols H 2 , CO 2, ,  Acetic acid Methane, CO 2 Methanogenesis Acetogenesis Acidogenesis
Septic tank ,[object Object],[object Object]
 
 
 
 
TERTIARY TREATMENT ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]
[object Object],[object Object]
 
Thank you MAJID MOHIUDDIN

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Waste Water Treatment

  • 1. WASTE WATER TREATMENT MAJID MOHIUDDIN
  • 2.
  • 3.
  • 4. Raw waste water Screening Chamber Grit Primary setting tank Aeration Tank Secondary Settling Tank Effluent Sludge thickener Anaerobic digestion Sludge thickener Sludge Disposal Primary sludge Sludge recycling (30-40%) Activated sludge (Secondary sludge) Grit Chamber
  • 5.  
  • 6.
  • 7.
  • 8. Primary Sedimentation tanks (or) Clarifiers (or) rectangular basins 3 – 5 m deep Hydraulic retention time 2 and 3 hrs. Radial flow pattern Scraper truss arm Rotating arm Scraper blades Sludge Hopper Primary Sludge Clean surface water Weir 30% BOD, 50-70% Total Suspended Solids and 65% of the oil and grease are removed during primary treatment. And some organic and phosphorus also. Primary effluent
  • 9.  
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  • 37.  
  • 38.  
  • 39.  
  • 40. Water containing complex organic matter (Carbohydrates, Proteins, Lipids) Hydrolysis (Extracellular enzymes) Simple Organic Compounds (Sugar, amino acids, peptides) H 2 , CO 2 , Organic acids, Alcohols H 2 , CO 2, , Acetic acid Methane, CO 2 Methanogenesis Acetogenesis Acidogenesis
  • 41.
  • 42.  
  • 43.  
  • 44.  
  • 45.  
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  • 47.
  • 48.
  • 49.  
  • 50. Thank you MAJID MOHIUDDIN