Description

Given the average incoming flow and BOD, the average depth of the pond and the the climate and insolation type, suggests the average area that should be adopted, calculates the volumetric organic loading rate, the volume of the pond, the detention time and the resulting organic volumetric load.

GRADES

• Recommendations for surface application rate:

  Option	Type of climate and insolation	Rate, kg BOD/ha.d
  1	Hot winter and high insolation	240 to 350
  2	Winter and moderate insolation	120 to 240
  3	Cold winter and low insolation	100 to 180

• L/B Ratio: 2 $\le$ L/B $\le$ 5

• The surface of an optional lake must be less than 15 ha.

• Depth y: 1.20 m $\le$ y $\le$ 2.00 m; larger values are recommended.

• Organic load application rate:

  $\ge$ 100 g BOD/m³.d and $\le$ 400 g BOD/m³.d

  Higher loads are applicable to higher temperature conditions.