Table 5-2. Adsorption regression parameters of phenolic
 compounds in single-compound system on plain
 soil.


 Compounds pH log KFA ST.DEV.+ b* ST.DEV. R2

 Phenol 5.2 -1.800 0.046 0.642 0.060 0.983
 2,4-DCP 5.2 -1.262 0.029 0.696 0.037 0.994
 PCP 5.0 0.049 0.054 0.558 0.048 0.985

 + Log standard deviation of log K values b
 *Exponent in the Freundlich model: (X/m)=K C


 Table 5-3. Adsorption regression parameters of phenolic
 compounds in single-compound system on soil
 with sludge.

 + 2
 Compounds pH log KFA ST.DEV. b ST.DEV. R2

 2ppm NaN3
 phenol 5.2 -1.097 0.061 0.647 0.077 0.973
 2,4-DCP 5.2 -0.849 0.067 0.776 0.083 0.977
 PCP 5.0 0.466 0.036 0.724 0.035 0.995
 6ppm NaN3
 Phenol 5.2 -1.346 0.069 0.672 0.087 0.967
 2,4-DCP 5.2 -0.813 0.085 0.787 0.106 0.965
 PCP 5.0 0.471 0.064 0.757 0.065 0.985
Average
 Phenol -1.346 0.672
 2,4-DCP -0.831 0.782
 PCP 0.469 0.741

 + Log standard deviation of log KFA values
 # Not used, only for reference
 $ Not an average number
 *Exponent in the Freundlich model: (X/m)=KF C


 The sludge used in the sorption studies had an average

total volatile solids (i.e., organic matter) of 4350 mg/l.

Based on the organic carbon/organic matter ratio of 0.524,

the organic carbon content was determined to be 2280 mg/l.

In the applicable batches, 2 ml of sludge were added and

assumed to be fully integrated into the soil matrix, which

had no organic carbon initially. The organic carbon content