Table 3.

Basis of assessment for the conventional wastewater treatment for 30,000 P.E.

Hydraulics			Loads (DWA A 131)			Assumptions
Parameter	unit	value	Parameter	unit	value	Parameter	unit	value
Specific wastewater accumulation	m3/(P.E.·d)	0.125	BSB5	kg/d	1,800	Design temperature	°C	12
Dry weather inflow	m3/h	352	TS0 (FSa)	kg/d	2,100	Mean flow time in primary sedimentation	h	1
Mixed water inflow	m3/h	664	NH4-N	kg/d	210	Fluctuation factorb	-	2
External water inflow	m3/d	938	Norg	kg/d	120	fCc	-	1.5
Daily inflow	m3/d	4,688	Ptotal	kg/d	45	fNd	-	1.2
-		-	-	-	-	Sludge volume index	l/kg	120

^Afilterable substances, ^bAccording to university group approach, ^cShock load factor for carbon, ^dShock load factor for N.