The units included of each stage		Units	Footprint required of each stage
The units included of each stage		Units	CAS	CAS-N	MBR
Preliminary treatment	Screen chamber	m²	1.5	1.5	1.5
Preliminary treatment	Grit chamber	m³	172	172	172
primary treatment	Primary clarifier	m³	2250	2,250	2250
Secondary treatment	Anoxic tank	m³	-	2500	1250
	Aerobic tank	m³	5684	8824	6218
	secondary clarifier	m³	6937	6937	-