5.2.2 Mixed Compound Batch Adsorption.


 The Freundlich sorption coefficients for the mixture of

the three phenolic compounds are shown in Table 5-5, Table

5-6 and Table 5-7, presented in the same order as in Section

5.2.1.


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

------------------------------------~;-----------------_---
Compounds pH log KFA ST.DEV.+ b ST.DEV. R

 Phenol 4.79 -2.286 0.119 0.868 0.154 0.941
 2,4-DCP 4.79 -1.350 0.057 0.791 0.073 0.983
 PCP 4.79 -0.131 0.077 0.682 0.082 0.972

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


Table 5-6. Adsorption regression parameters of phenolic
 compounds in multi-compound system on soil with
 sludge.


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

 2ppm NaN3
 Phenol 4.82 -1.610 0.041 0.840 0.052 0.992
 2,4-DCP 4.82 -1.036 0.039 0.923 0.050 0.994
 PCP 4.82 0.311 0.041 0.714 0.041 0.993
 6ppm NaN3
 Phenol 4.88 -1.714 0.080 1.002 0.104 0.971
 2,4-DCP 4.88 -0.959 0.057 0.898 0.073 0.987
 PCP 4.88 0.320 0.050 0.686 0.048 0.990
 Average
 Phenol -1.662 0.921
 2,4-DCP -0.998 0.911
 PCP 0.316 0.700

 + Log standard deviation of log KFA values