Waste Water treatments

Wastewater treatment processes are arranged to achieve improvements in the quality of the wastewater. The various treatment processes may reduce Suspended solids physical particles that can clog rivers or channels as they settle under gravity· Biodegradable organics which can provide as food for microorganisms in the receiving body. Pathogenic bacteria and other disease causing organisms these are most relevant where the receiving water is used for drinking, or where people would otherwise be in close contact with it; and Nutrients, including nitrates and phosphates. Universally used terminology refers to three levels of wastewater treatment: primary, secondary, and tertiary. Primary treatment is designed to remove gross, suspended and floating solids from raw sewage. It includes screening to trap solid objects and sedimentation by gravity to remove suspended solids. This level is sometimes referred to as mechanical treatment, although chemicals are often used to stimulate the sedimentation process.
 
 
  • Sludge Treatment
  • Activated-sludge method
  • Bio-solids
  • Sedimentation tank
  • Trickling filter

 

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