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On average how much wastewater (in l) per capita and day is found at the inflow of a sewage treatment plant?

Possible Answers

approx. 250 l/(cap·d) – 300 l/(cap·d)

approx. 120 l/(cap·d) – 180 l/(cap·d)

approx. 15 l/(cap·d) – 20 l/(cap·d)

approx. 1,500 l/E·d – 2,000 l/(cap·d)

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