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Selecting proper system for biological treatment

8/15/2014

 
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On a recent discussion group, someone asked about biological treatment of starch contaminated wastes. Instantly the vendors lined up to sell  their technologies including additives, equipment, and various treatment systems. Only in a few cases people actually asked key questions that need to be considered before selecting a treatment system. Always start with the following questions:
  • Organic make up of waste:  In this case it was starch
  • Concentration (BOD/COD) If COD >1500 mg/L - investigate anaerobic treatment, with COD < 1300 mg/L often aerobic is easier to stabilize and maintain.
  • Other major influent parameters - pH, temp, nitrogen, phosphorus, alkalinity
  • Are their any inhibitory, resistant, or toxic compounds?
  • Treatment objectives & permit limits

Only once you have a full characterization of the influent wastes, can you begin to select the proper biological treatment process. The key point being - you fit the treatment system to the waste stream and treatment objectives.




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    Author

    Erik Rumbaugh has been involved in biological waste treatment for over 20 years. He has worked with industrial and municipal wastewater  facilities to ensure optimal performance of their treatment systems. He is a founder of Aster Bio (www.asterbio.com) specializing in biological waste treatment.

    View my profile on LinkedIn

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