Journal of Water Chemistry and Technology

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Using Surrogate Equilibrium Constants for Assessing the Energy of Adsorption of Synthetic Organic Substances from Aqueous Phase onto Carbonized Adsorbents
Journal of Water Chemistry and Technology - Tập 45 Số 5 - Trang 467-474 - 2023
S. K. Smolin, O. V. Zabneva
Prediction and Optimization of Pentachlorophenol Degradation and Mineralization in Heterogeneous Catalytic Ozonation Using Artificial Neural Network
Journal of Water Chemistry and Technology - - 2020
Ghorban Asgari, Alireza Rahmani, Muharram Mansoorizadeh, Aliakbar Mohammadi, Fateme Samiee
In this study, artificial neural network was used to predict pentachlorophenol (PCP) degradation in aqueous solution by catalytic ozonation process in a laboratory-scale semi-batch reactor. The catalyst used in this process was the alumina (γ-Al2O3). Results indicated that after 60 min optimal condition: 0.5 g/L of (γ-Al2O3), 0.5 L/min the flow rate of ozone, pH 8 and 100 mg/L PCP initial concentr... hiện toàn bộ
Decolorization and MIneralization of Methylene Blue in Aqueous Solutions by Persulfate/Fe2+ Process
Journal of Water Chemistry and Technology - Tập 42 - Trang 244-251 - 2020
Mostafa Mahdavianpour, Saeid Ildari, Mehdi Ebrahimi, Mehrdad Moslemzadeh
Today, the treatment of dye wastewater discharged by various industries, such as textiles, has attracted the attention of many researchers due to the non-biodegradability nature of dye contaminants. Methylene blue is one of numerous dyes existing in this wastewater that causes a variety of human health problems. Because of the low efficiency of biological treatment processes in the removal of this... hiện toàn bộ
Biochemical treatment of petroleum-containing waters
Journal of Water Chemistry and Technology - Tập 35 - Trang 183-188 - 2013
E. I. Semenova, N. A. Bublienko, T. A. Shilofost, A. V. Bublienko
The article has investigated the processes of treating petroleum-containing wastewaters by means of an aerotank mixer and their intensification was carried out by the unit of biochemical purification, which is a foam tank and aerotank clarifier.
Photometric Extraction Detection of 2-Methyl-4-Chlorophenoxyacetic Acid in Water
Journal of Water Chemistry and Technology - Tập 44 Số 5 - Trang 362-368 - 2022
Zholt Kormosh, Shevchuk, Mykola, Kormosh, Natalia, Korolchuk, Svitlana, Savchuk, Tetiana, Suprunovich, Sergei
It has been shown that 2-methyl-4-chlorophenoxyacetic acid (MCPA) forms an ionic associate (IA) with the polymethine dye Astrafloxin FF (AF). The energy efficiency of IA formation is substantiated by the method of mathematical modeling. The molecular modeling of MCPA– + AF+ systems and related calculations are performed by using the HyperChem 8.0 software package in various initial variants for th... hiện toàn bộ
Water purification of sulfates by liming when adding reagents containing aluminum
Journal of Water Chemistry and Technology - Tập 36 - Trang 70-74 - 2014
N. D. Gomelya, I. N. Trus, Yu. V. Nosacheva
The article has investigated the processes of water purification of sulfates when treating with lime, sodium aluminate or aluminum hydroxide. It has been shown that the efficiency of removing sulfates depends on the type and consumption of reagents containing aluminum and the method of pretreating aluminum hydroxide. The paper has determined the effect of after treatment by carbon dioxide or magne... hiện toàn bộ
Removal of Fluoride from Aqueous Solution using Calcium Peroxide as a Low-cost Adsorbent
Journal of Water Chemistry and Technology - Tập 42 - Trang 329-338 - 2020
Parwathi Pillai, Swapnil Dharaskar, Hitesh Panchal
Removal of fluorides from water is essential for humans and animals because it causes dental and bone deficiency. The maximum permissible limit of fluoride is 1.5 mg/L, according to the World Health Organization. Recently it became known that countries like Pakistan, India, Sri Lanka, China, Argentina, etc. have high fluoride concentration in groundwater. In the present work, calcium peroxide nano... hiện toàn bộ
Novel Immobilization of Pseudomonas Aeruginosa on Graphene Oxide and Its Applications to Biodegradation of Phenol Existing in Industrial Wastewaters
Journal of Water Chemistry and Technology - Tập 41 - Trang 363-370 - 2020
Maasume Noori, Soroor Sadeghi
A new biodegradtion method for removal of phenol and its derivatives has been considered. In this study the biochemical pathway involved in degradation of phenol through Pseudomonas aeruginosa bacterial cells which are immobilized on graphene oxide (GO) has been investigated. Since phenol is a toxic substance and eliminating it through a biological method is difficult, the phenol removal ability o... hiện toàn bộ
Phylogenetic diversity of aqueous microorganisms separated after the advanced tertiary of tap water
Journal of Water Chemistry and Technology - Tập 36 - Trang 184-189 - 2014
I. Yu. Roi, N. A. Klimenko, G. M. Zdorovenko, V. V. Goncharuk
The species composition of bacterial community of the drinking tap water and water samples taken at different purification stages of the water conditioning plant at an enterprise producing special drinks has been analyzed. This study involves the analysis of 16S rRNA gene sequences and the use of molecular biology methods based on the phylogenetic analysis. The following bacterial species were ide... hiện toàn bộ
The impact of activated carbon oxidizing on the adsorption of fulvic acids from aqueous solutions under dynamic conditions
Journal of Water Chemistry and Technology - Tập 33 - Trang 230-235 - 2011
T. V. Polyakova, N. A. Klimenko, L. A. Savchina, E. A. Samsoni-Todorova
The paper has investigated the adsorption of peat fulvic acids from aqueous neutral solutions on unoxidized and oxidized activated carbons under dynamic conditions. We have determined the share of biologically accessible organic carbon in the value of total organic carbon in the course of biofiltration. It has been shown that the generation of biologically accessible organic carbon on oxidized car... hiện toàn bộ
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