What can cause a high FOS result in the FOS/TAC ratio of a primary anaerobic digester tank given a relatively low Total Volatile Fatty Acid conc.?

Additional Information - Primary digester tank is recovering from over feeding event which occurred about 8 weeks ago. - FOS/TAC (Alkalinity) ratio remains above 0.5 even though the digester is...

05 November 2019 8,202 5 View