Mirko, Is it possible that ...
Published by Ken Martins, Global Practice Director, Industrial Water
Mirko,
Is it possible that SBR1 has leaks in the piping and when the system is not pressurized it allows wastewater to leak into the aeration piping. That would lead to solids build up behind the membrane. Another possibility is that one of the blowers for SBR has a faulty air filter that is allowing dirt and dust in that would eventually build up behind the membrane.
Also, since these are SBRs, you should also consider that they could possibly be programmed differently. I would verify that these are programmed to operate in the same batch sequence.
1 Comment
It can be piping leaks or if a membrane has collapsed, sludge can enter the piping from the damaged diffuser during non aeration phase. If it is the case, it is very easy to confirm it visually. During normal operation you can also verufy it if you have drainage valves => you open it frequently to remove condensates anf if sludge is resent in piping, ypu will observe brown water coming out from the piping drainage system.
Published by Michael Martin, Deputy Asset & Technical DIrector at SUEZ International