Use of wastewater sludge for the amendment of crude oil bioremediation in meso-scale beach simulating tanks

摘要

We investigated the effects of the application of wastewater sludges on microbial degradation of crude oil. The experiments were carried out in four beach simulating tanks. In each tank, filled with gravel and seawater, crude oil was added on the surface of seawater. Dehydrated-wastewater sludge, liquid -wastewater sludge and synthetic fertilizers were added in tanks A, D and C, respectively. In tanks A and D, sharp increases in the bacterial number and the oxygen consumption occurred Immediately while the increases in tank C was slower.