Structural/Functional Changes in Activated Sludge in PCP- and ONP-Biodegradation Technologies

Different detoxication technologies (aerobic, anaerobic, two stage, hybrid) using oNP, PCP, DCP, TCP like model xenobiotics, have been accomplished in the last 8 years. The results about the details of the technologies have been described previously. In this paper the comparison between the efficiency of the different technologies and structural/functional changes of AS (activated sludge) has been made. The paper is illustrated by means of microscopic and transmission microscopic photographs. The results showed well expressed connection between the efficiency of xenobiotic elimination, type of technology, initial concentration of the particular xenobiotic and adaptive structure of AS. At aerobic shorter adaptation genus Pseudomonas played more important role in the detoxication. At time of the longer anaerobic and anoxic processes genus Acinetobacter assumed the govern role in the structure of xenobiotic-degrading bacterial complex. The deep knowledge of the adaptive structure of the different detoxication technologies presents the valuable information for quick and intelligent management of the detoxication bioremediation technologies.