• Enhanced Nutrient Removal is a biological process and is easily upset by chemical, biological or mechanical interferences

• Enhanced Nutrient Removal processes once upset or lost is very difficult to reestablish in colder months.

• Enhanced Nutrient Removal efficiencies will vary over time and allowances must be built into a treatment plant permit and plant "capacity" to avoid permit violations.
  
  
• Enhanced Nutrient Removal required additional energy to work adding to the treatment plant carbon footprint and added Utility costs.
  
  
• One of the most effective ways to reduce nutrients from ever entering the treatment plant/Chesapeake Bay is to not use your kitchen garbage disposal for any solid/food waste, compost is the best solution.

Enhanced Nutrient Removal links : 

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