ISSN 1070-4272, Russian Journal of Applied Chemistry, 2007, Vol. 80, No. 1, pp. 48!52. + Pleiades Publishing, Ltd., 2006.
Original Russian Text + S.S. Stavitskaya, V.M. Vikarchuk, N.N. Tsyba, N.T. Kartel’, O.N. Bakalinskaya, 2007, published in Zhurnal Prikladnoi Khimii,
2007, Vol. 80, No. 1, pp. 49!53.
OF SYSTEMS AND PROCESSES
Sorption of Organic Dyes of Various Molecular Weights
on Mineral Sorbents and on Sea and Lake Bottom Sediments
S. S. Stavitskaya, V. M. Vikarchuk, N. N. Tsyba, N. T. Kartel’, and O. N. Bakalinskaya
Institute of Sorption and Problems of Endoecology, National Academy of Sciences of Ukraine, Kiev, Ukraine
Received March 30, 2006
Abstract-The sorption of organic dyes of various molecular weights (from 100 to 700 amu) from aqueous
solutions on minerals and on sea and lake bottom sediments was studied.
In the modern stage of development of human
society, various aspects of human health are closely
associated with the environmental problems. There is
no doubt that the environmental pollution and deteri-
oration of food and drinking water negatively affect
the human health. Therefore, an urgent problem is the
development of techniques allowing the elimination of
these detrimental effects. One of approaches to solu-
tion of this problem is based on detoxication of
human body by introducing specific sorbents ensuring
its inner ecological purity (endoecological purity).
One of promising directions in the modern environ-
mental science is the development of techniques for
sanitation of human body by introduction of specific
sorbents recovering toxic, ballast, and potentially
detrimental compounds of endogenic and exogenic
kinds. High-performance biocompatible sorbents
based on polymeric materials are successfully used
today for medical treatment of human body [1!3].
These medical sorbents include various carbon mate-
rials [1!9]. Activated carbons are used as application
materials stabilizing the growth of tumor cells  and
accelerating the healing of infected wounds, burns,
and chilblains [2, 8, 10].
Recently the market of medical and cosmetic appli-
cation materials was replenished owing to appearance
of new biologically active dispersed minerals and
other compounds taken from bottom sediments of the
Black and Azov seas. These materials were found to
contain the specific natural curative organomineral
complex. The preparation of new domestic medical
compositions based on these raw materials and de-
velopment of effective techniques for their production
is an urgent problem.
In this study we examined the sorption of organic
dyes simulating the exo- and endogenic organic pollut-
ants on clay minerals and bottom sediments collected
from the Black Sea at different depths (200!2100 m)
and also from limans and lakes located in the southern
The sorption power and selectivity of sorbents for
organic pollutants are mainly determined by the size
ratio of sorbent pores and organic pollutant molecules
whose size, in turn, correlates with their molecular
weight [10, 11].
It is known that the molecular weight of toxic
organic compounds varies within a broad interval
from several hundreds to tens thousands atomic units
. Therefore, purposeful choice of the optimal en-
terosorbent for removing particular organic pollutant
from a living body requires understanding of correla-
tion between the sorption power of the sorbent and
the pollutant molecular weight.
Since enterosorption is usually applied for detoxi-
cation of human body poisoned with organic com-
pounds with the molecular weight below 1000, in
our experiments we tested as simulating compounds
organic dyes with the molecular weight (MW) from
100 to 700.
The sorption of organic dyes (Methylene Blue,
MW = 320; Methyl Orange, MW = 324; Methyl
Violet, MW = 410; Orange-Yellow, MW =450;
Bromocresol Purple, MW = 540; Bromphenol Blue,
MW = 670; Congo Red, MW = 700; and creatinine,