Anaerobic treatment of gasifier effluents. Quarterly report

Anaerobic biogranulation in a hybrid reactor treating phenolic waste

“…Dimethyl phenols could be removed completely at all the organic loadings and did not contribute much to the residual organics. The results were comparable to that of the observation of Cross et al [32] in which in an anaerobic GAC filter system, the maximum COD loading rate was 2.5 g/L/d with 93% phenol removal efficiency using a 10-fold diluted coal gasifier effluent (phenol = 560 mg/L). Though the scope of the study was not to observe the effect of one phenolic compound on the removal of other, yet it was observed that, among the phenolics, mcresol and o-cresol accumulated in the effluent and contributed to the residual organics.…”

Effect of hydraulic retention time on the biodegradation of complex phenolic mixture from simulated coal wastewater in hybrid UASB reactors

“…Results of start up and acclimatization phase (120 days) are discussed elsewhere. The results were comparable to that of the observation of Cross et al [22] in which in an anaerobic GAC filter system, the maximum COD loading rate was 2.5 g/(L d) with 93% phenol removal efficiency using a 10-fold diluted coal gasifier effluent (phenol = 560 mg/L). The reactors at the end of acclimatization phase were treating 752 mg/L of complex phenolic mixture representing the major fraction of the synthetic wastewater.…”