Intermediate storage or buffering wastewater may be applicable, for example, when you have large and shorter overflows of wastewater and you do not want or can put a sufficiently large pipe to handle these cases.
Is it the flow that fills the buffer volume.
The time that the emptying flow fills the buffer volume, ie during the time the buffer is filled.
Refers to the flow out of the buffer volume and which extends to the system.
The volume that you need to store in order to meet the conditions laid down.