Res. Chem. Intermed.
, Vol. 27, No. 7,8, pp. 775–786 (2001)
Application of pulse radiolysis and computer simulation
for the study of the mechanism of radiation puri cation
of polluted water
A. K. PIKAEV
Institute of Physical Chemistry of Russian Academy of Sciences, Leninsky Prospect, 31,
Moscow 119991, Russian Federation
Abstract—The results of the studies of the radiation puri cation of polluted water and wastewater
conducted in the author’s laboratory in cooperation with other Institutions are summarized in this
paper. The main attention is paid to the application of pulse radiolysis and computer simulation for
the elucidation of the mechanism of puri cation. Data are presented on the features of radiation
(predominantly electron beam) treatment of water contaminated with various pollutants (a mixture
of isobutylnaphthalene sulfonates which is used as emulsi er in the production of synthetic rubber,
heavy metal ions such as Hg(II), Cd(II), Pb(II), chlorobenzene, formic acid, and so on).
: Electron beams; ionizing radiation; mechanism of puri cation; pollutants; radiation
puri cation; wastewater; water.
It is well-known that ionizing radiation (predominantly electron beams) can be
used for puri cation of polluted water and wastewater (e.g. see reviews [1, 2]
for references). The removal of pollutants arises through several mechanisms:
their reactions with primary products of water radiolysis (
OH radicals, hydrated
, H atoms) and with secondary short-lived species that are derived from
the pollutants themselves, formation of precipitates capturing impurities, and so on.
Our laboratory has been studying the problem since the early 1980s. In coopera-
tion with other Institutions, various systems have been treated by ionizing radiation
for puri cation. The water systems studied were: (1) industrial wastewater con-
taining mercury in different forms [3 – 5]; (2) industrial wastewater polluted with
isobutylnaphthalene sulfonates (so-called Nekal) [6, 7]; (3) highly-colored river
water containing organic impurities and suspended particles ; (4) water conta-