Land Treatment Area Design and Build
Land Treatment Areas, or Grass Plots have been used by Water Companies for decades to polish tertiary effluent to remove solids and associated BOD. Operators will also tell you that they will help remove ammonia most probably through their large surface area exposed to atmospheric oxygen.
Land Treatment Areas still have their roll to play for the correct application. Their sizing and loading is however important to sustain long term service. Their systems can provide a cost effective solution but maintenance costs need also to be considered.