Results 11 to 20 of about 288 (145)

Low waste technology for the removal of nitrates from water [PDF]

Archives of Environmental Protection, 2023
As a rule, nitrates are present in all natural water bodies. Their increased concentrations are connected with the discharge of insufficiently treated wastewater from industrial and communal enterprises, agricultural and livestock complexes.
Inna Trus, Mukola Gomelya, Vita Halysh, Mariia Tverdokhlib, Iryna Makarenko, Tetiana Pylypenko, Yevhen Chuprinov, Daniel Benatov, Hennadii Zaitsev   +8 more
doaj   +3 more sources

Modern technologies in the system of regeneration and purification of boron concentrate [PDF]

Trudy Odesskogo Politehničeskogo Universiteta, 2017
The analysis of the efficiency of the technological chain of a typical installation (device) SVO-6 is performed. Characteristic drawbacks, inherent in combined “evaporation-ion-exchange filtration” systems conditional to the properties of boric acid and ...
Dorozh Оlga А., Kovalchuk Vyacheslav I. , Kozlov Igor L.   +2 more
doaj   +8 more sources

Sorption of Perrhenate Ions by a New Anion Exchanger Based on an Oligomer of Epichlorohydrin and 4-vinylpyridine [PDF]

Eurasian Chemico-Technological Journal, 2013
In this study, oligomer epichlorohydrine (OECH) was crosslinked with 4-vinylpyridin (VP) present initiator of peroxide benzoyl (BP). The resulting anionite (OECH-VP) was characterized by scanning electron microscopy (SEM) and tested for perrhenate ions ...
A. Pidakhmet, E. E. Ergozhin, T. K. Chalov, A. I. Nikitina   +3 more
doaj   +2 more sources

Mathematical Modeling of Absorption-adsorption Processes for Waste Free Decontamination of Gases from SO2 in a Bubble Tray Column [PDF]

E3S Web of Conferences
Integrated absorption-adsorption for waste free desulfurization of gases from SO2 in a bubble tray column is presented. The method includes physical absorption of SO2 with water and chemical adsorption of HSO3-from the water solution by particles ...
Popova-Krumova Petya, Razkazova-Velkova Elena, Boyadjiev Boyan, Boyadjiev Christo   +3 more
doaj   +4 more sources

Synthesis, Characterization, and Physico-Chemical Aspects of a New PVC-Based Quaternary Triethanol Ammonium Chloride Anionite for Tungsten Recovery. [PDF]

Turkish Journal of Chemistry
Bahig M Atia
exaly   +2 more sources

Removal of Phosphates on Low Basic Anionite Dowex Marathon WBa

Journal of Chemical Technology and Metallurgy
The processes of determining the efficiency of Dawex Marathon WBA anionites in removing phosphates from water and creating waste-free processes for their regeneration were studied. In the course of an experimental study of sorption, model solutions of polluted water containing phosphates in a concentration of 40-100 mg dm-3 were passed through the low ...
Inna Trus, Yana Kryzhanovska, Mukola Gomelya   +2 more
exaly   +2 more sources

Studies of the rate of gold sorption by the AM-2B anionite from cyanide-alkaline solutions [PDF]

, 2022
The paper presents the results of studies on the sorption leaching of gold-containing ore of the Vasilkovskoye deposit. Kinetic dependences of the sorption of gold and associated metals from cyanide-alkali solutions under different physical and chemical ...
Kaumetova, DS, Magomedov, DR, Absalyamov, Kh K, Koizhanova, AK, Banks, CE, A. Koizhanova, D. Kaumetova, null null, D. Magomedov, Kh. Absalyamov, C. Banks   +10 more
core   +2 more sources

Ion exchange demineralization and water softening with increased level of salinity and hardness

Trudy Odesskogo Politehničeskogo Universiteta, 2014
This work lies in the range of science topics on creation of low-waste demineralization technology of light-salted natural and waste water. The aim of this work is to study the sorption processes of chlorides and sulfates on anion exchange resin AV-17-8
І.М. Макаренко, І.М. Трус, В.М. Грабітченко   +2 more
doaj   +5 more sources

Rhenium recovery from highly concentrated sulfuric media using AMR anionite in column mode [PDF]

, 2022
The paper deals with the study of rhenium recovery by AMR anionite from model high-acidic sulfuric solution as well as its desorption by ammonia solution in column experiments. Total dynamic exchange capacity was calculated.
Shestak, Yurii, Cortina Pallás, José Luis, Pohorielov, Yurii, Korovin, Vadym, Valiaiev, Oleksandr   +4 more
core   +1 more source

CALCULATION OF ION EXCHANGE COLUMN FOR PURIFYING OF LITHIUM HYDROXIDE SOLUTION FROM CHLORINE ANIONS

Siberian Journal of Life Sciences and Agriculture, 2021
In the article possibility of water solution LiOH tertiary treatment from chlorine anions after electrolysis is viewed. Analyzing the existing purification methods, it is proposed to use the purification of lithium hydroxide in an ion exchange column.
Alexander B. Golovanchikov, Tatyana N. Sinenko, Olga A. Zalipaeva, Natalia A. Prokhorenko   +3 more
doaj   +1 more source