Fecal coliform concentrations in London sewage is 500,000 MPN/100 mL. A base flow of sewage (q) in the normal intercepti
Posted: Sun Jul 10, 2022 11:46 am
Fecal coliform concentrations in London sewage is 500,000MPN/100 mL. A base flow of sewage (q) in the normal interceptingtunnel (Bazalgette’s old system) is 10 m3/s. What size rain eventflow (Q) is necessary to overflow water that meets 14 MPN/100 mL asa primary contact water standard? Assume rainwater fecal coliformis 10 MPN/100 mL. If the catchment producing this rain event is 100km2, what is the rainfall intensity that produces this flow if 80%becomes runoff.