The paper presents the results of innovative design development for multicomponent adsorption filters with sliding
cartridges or with a metal-graphite electrode system. The proposed filters allow providing water purification by 98–99%
simultaneously from various polluting organic substances, including polycyclic aromatic hydrocarbons. The filtering media
of these filters include bentonite modified by various methods. To study the effectiveness of adsorption filters as a rapid
method, qualitative spot test analysis (sensu Feigl) was used. To control the content of polycyclic aromatic hydrocarbons
in aqueous media and to ensure effective sewage treatment of natural contaminated waters, a luminescent solid-substrate
method was applied. This method permits combining the preceding sorption concentration of substances on a cellulose
matrix, modified with a surfactant, and analyzing directly in the solid phase of the sorbent. Optimal characteristics of
luminescent control of ecotoxicant content before and after water purification were determined. Laboratory studies on
water treatment efficiency using multicomponent adsorption filter with retractable cartridges of a model solution including
a complex of polluting organic substances (pyrene, chrysene, benzpyrene, resorcinol) allowed identifying optimal
filtering media represented by activated silica gel; bentonite, modified with carbon nanotubes and glycerol after heat
treatment at 650 оC; bentonite after heat treatment at 650 оC; bentonite, modified with carbon nanotubes after heat treatment
at 550 оC. Laboratory studies of water purification efficiency by multicomponent adsorption filter with metallographic
electrode system of a model solution, including pyrene, chrysene, benzpyrene, resorcinol, m-aminophenol, o-toluidine,
permitted to identify the most efficient filtering media comprising of synthetic zeolite; bentonite modified with carbon
nanotubes and glycerol after heat treatment at 550 оC with a gradual temperature increase; organobentonite; bentonite
modified with carbon nanotubes and glycerol after heat treatment at 550 оC; activated silica gel; bentonite after heat treatment
at 800 оC. The proposed effective sorption water purification systems based on a multicomponent filtering media
with luminescent control of ecotoxicant content in resulting solution can be recommended for successful introduction at
industrial enterprises, producing wastewaters, as well as at water treatment plants.
Keywords: water quality control, water treatment, luminescent analysis, solid-substrate luminescence, adsorption filter, filtering media
Article published in number 1 for 2019 DOI: 10.25750/1995-4301-2019-1-073-081
ISSN 1995-4301
Select viewing options
