Why Operating Membrane Plants Can Drive You Nuts – Operation of the 70 MGD GWR Systems

The orange County Sanitation District operates a 70 mgd water reuse facility. The plant treats secondary effluent with MF/RO/UV-AOP/Lime and injects into the ground for indirect potable reuse. Each of the process treatment trains have had operational issues after start-up. This paper describes the issues and the solutions to these problems.