“…The results show that, with an increase in ether concentration from 67 to 400 ppmv or COD: P ratio from 333 to 2,000, the ether removal efficiency only decreases from 99.9 to 90 percent. Phosphorus was not significantly limiting ether removal and biomass growth, although the P:COD ratio was much lower than usually suggested for biomass growth, which is 1:100 (Gaudy and Gaudy 1980). The biomass yield actually increased from 0.04 to 0.09 gVSS/gCOD during this period.…”