Abstract
In the pilot research for treatment of the purified terephthalic acid (PTA) wastewater with the functional strain Fhhh in the carrier activated sludge process (CASP) effectively, control of the value of COD: TN: TP and the concentrations of Cu, Mn, Se and Zn were conducted to improve the manganese peroxidase (MnP) level. When the value of COD:TN:TP was 100:0.36:0.15 and the concentrations of Cu, Mn, Se and Zn were 0.54, 5.07, 0.00 and 0.08mg/L, the specific activity value of MnP reached a higher level being 689 units while the sludge loading rate was 1.09 d-1. This value of the sludge loading rate was those of 4-7fold of the other processes reported. The data suggested that improving MnP level could enhance the degradability for Fhhh. And the potentials for Fhhh in the PTA wastewater CASP will be also discussed in this paper.
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