LIST OF TABLES Table Page 3-1 Physical properties of the phenolic compounds.... 9 4-1 Experimental scheme for adsorption study......... 43 4-2 Experimental scheme for phenol biodegradation and nutrient requirement studies............. 49 4-3 Experimental scheme for 2,4-DCP biodegradation study......................................... 50 4-4 Experimental scheme for PCP biodegradation and enzyme induction studies................. 51 4-5 Experimental scheme for mixture biodegradation and co-degradation studies................... 52 4-6 Experimental scheme for PCP co-degradation in the presence of phenol........................... 53 4-7 Experimental scheme for column study II (co-degradation of PCP and phenol) ........... 55 5-1 Selected physical properties of the soil.......... 57 5-2 Adsorption regression parameters of phenolic compounds in single-compound system on plain soil.................................... 58 5-3 Adsorption regression parameters of phenolic compounds in single-compound system on soil with sludge.. ............................ 58 5-4 Calculated adsorption parameters of phenolic compounds in single-compound system based on organic carbon............................... 60 5-5 Adsorption regression parameters of phenolic compounds in multi-compound system on plain soil.................................... 61 5-6 Adsorption regression parameters of phenolic compounds in multi-compound system on soil with sludge.. ............................ 61 5-7 Calculated adsorption parameters of phenolic compounds in multi-compound system based on organic carbon................................ 62