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Catchment Area Learncard 478112203


Question

Match the following terms with the cards:

Total population and equivalent (PT), population (P), population equivalent (PE)


Calculate for the municipality, the daily load of chemical oxygen demand in kg/d, when PE = 75 I are taken for the trade activity and PE = 500 I for the manufacturer. The daily inflow into the plant amounts to 1,500 m3/d.

Answer

PT = Total population and equivalents – combined sewer

P = population - estate

PE = population equivalent - trade and industrial

Loadd,COD = (75 I + 500 I + 7,500 I) · 0.120 kg/(cap · d) = 969 kg COD/d


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