An increase in soil organic matter displayed an increase in the adsorption coefficients
. Hence organic matter showed a positive correlation with adsorption coefficient
Then, a gas adsorption coefficient
is determined in the laboratory, and the gas content is calculated.
Major and minor phases were performed with semiquantitative method on the basis of the intensity counts of specific reflections, the density, and the mass adsorption coefficient
of the identical mineral phases .
KL is Langmuir adsorption coefficient
which gives information about binding sites available on the surface of the adsorbent, calculated as: (5)
where [K.sub.L] is the Langmuir adsorption coefficient
and [C.sub.0] is the initial Ni(II) concentration (mg[L.sup.-1]).
The adsorption coefficient
, [K.sub.a], related to the apparent energy (surface energy) of sorption was found to be 0.991 L/mg.
Freundlich isotherm Material [q.sub.m1, [q.sub.m2, [k.sub.F], 1/n [R.sup.2] exp], exp], (mg mgM[e.sup.2+] mgM[e.sup.2+] [g.sup.-1]) [g.sup.-1] [g.sup.-1] copolymer acid group Cu[II] S2 l.46 5.9 0.667 0.2532 0.7558 S4 0.84 3.2 0.195 0.4534 0.6212 Ni(II) S2 1.36 5.5 0.381 0.3876 0.9552 S4 1.26 4.7 0.295 0.4378 0.9536 Langmuir isotherm Material [k.sub.L, (L [q.sub.m, [R.sup.2] [mg.sup.-1]) cale], (mg [g.sup.-1]) Cu[II] S2 0.540 1.56 0.9968 S4 0.134 1.05 0.9244 Ni(II) S2 0.177 1.61 0.9977 S4 0.131 1.57 0.9934 The constant [K.sub.F] can be defined as an adsorption coefficient
, which represents the quantity of adsorbed metal ions for a unit equilibrium concentration.
where [V.sub.ad] is the adsorbed gas volume, [m.sup.3]/t; a is the Langmuir volume, [m.sup.3]/t; b is the adsorption coefficient
In the above equations, S (rag C/kg) and C (mg C/L) stand for DHA concentrations (OC based) in solid and aqueous phases at equilibrium; [S.sup.0] (mg C/kg) is adsorption capacity in Langmuir modelling and b (L/mg C) is the Langmuir adsorption constant; [K.sub.F] is the Freundlich adsorption constant and n is a nonlinear factor; K (L/kg) is the linear adsorption coefficient
. The nonlinear regression was conducted using SigmaPlot (9.0) and statistical analysis conducted using SPSS (10.0).
K is a modified adsorption coefficient
which can be estimated from the adsorption isotherm which determines dependence of adsorbed lime concentration ([C.sub.A]) in the hide and on the free solution lime concentration (C) in the equilibrium conditions.
Alternatives for the determination of the soil adsorption coefficient
, K[K.sub.oc] , of non-ionic organic compound--a review.
In the optimization routine, the oxygen adsorption coefficient
parameters, [MATHEMATICAL EXPRESSION NOT REPRODUCIBLE IN ASCII], as well as the pre-exponential factor, [k.sub.0], and activation energy, [E.sub.a], for the Langmuir-Hinshelwood kinetic model (Eq.