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1
Content available Complex Sorption Treatment of Industrial Waste and Production of Plastic Lubricants
Ranskiy Anatoliy, Gordienko Olga, Sakalova Halyna, Sydoruk Tetiana, Titov Taras, Blazhko Oleg
Ecological Engineering & Environmental Technology
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2023
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Vol. 24, iss. 3
54--59
EN
The article deals with the studies on complex sorption treatment of industrial waste of various industries to obtain new C, S, N-containing plastic lubricants, which provide antiwear, antifriction, high load-bearing and heat-resistant properties. The conditions for obtaining diethylammonium salt from the obsolete pesticide Banvel D and its sorption on a mixed sorbent, which consist of activated carbon (AC) and kieselguhr (K), have been established. The conditions for obtaining potassium diethyldithiocarbamate and its adsorption on the surface of the mixed sorbent (AC + K), followed by treatment with copper(II) sulfate of corresponding bis-(diethyldithiocarbamato)copper(II) sorbed on a solid surface, have been examined. The obtained substances of general composition [sorbent (AC + K)]·[(C2H5 )2NS(=S)S]2Cu were studied as active components of plastic lubricants, which provide their thickening, antiwear and antifriction properties. Industrial tribological research was carried out for friction pairs of four-row roller bearings of roller equipment used at private enterprise (PE) "Exim" (Kherson, Ukraine).
2
Content available Influence of Chlormequatchloride on Morphogenesis and Productivity of Cruciferous Plants
Polyvanyi Stepan, Polyvana Alina, Sakalova Halyna, Shevchuk Oksana, Khodanitska Olena, Tkachuk Olesia, Matviichuk Oleksandr, Knyazuk Oleg, Stepanenko Inna, Zavalnyuk Oksana
Journal of Ecological Engineering
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2022
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Vol. 23, nr 9
53--60
EN
At present, there are burning issues concerning waste utilization of the agro-industrial complex, rational usage of nature and transition to the use of environmentally friendly and low-waste technologies. One of the most forward-looking areas is the application of the principles of the so-called "green chemistry", in particular, the development of technological processes using renewable raw materials and chemicals, the chemicals with a short half-life and low cost while ensuring maximum efficiency. The article presents the results of antigiberrelic preparation effect, which is characterized by low dosage and half-life in soil from 3 to 43 days on productivity, growth processes, anatomical, morphological features and functioning of the leaf apparatus of white mustard plants and rapeseed. The research shows that CCC-750 reduced the height of mustard and rapeseed plants. Inhibition of growth processes of white mustard plants at the beginning of the flowering phase with an anti-gibberellic preparation led to increased stem branching, which, in its turn, resulted in an increase in the number and area of leaves throughout the growing season. Moreover, the use of quaternary ammonium salt on winter rape plants has led to a reduction in the number of leaves and leaf area in comparison to the control samples. The application of the retardant caused an increase in the productivity of the studied cultures due to the increase in the number of pods, the increase in the mass of thousands of seeds and the number of seeds in the pod.
3
Content available Usage of Worked Clay Absorbent as a Manifestation of an Ecologically Oriented Lifestyle
Palamarchuk Olga, Sakalova Halyna, Vasylinych Tamara, Lyubchak Lyudmila, Shevchuk Oksana, Matviichuk Oleksandr, Khodanaitska Olena
Ecological Engineering & Environmental Technology
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2022
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Vol. 23, iss. 2
90--96
EN
The article deals with the development of new eco-innovative technologies, evaluation of their effectiveness and raising the widest possible awareness of those categories to the people who could effectively use the proposed technologies. It was found that the personal position of economic entities is the core of the structural organization of psychological readiness for ecologically oriented innovation and is manifested in the forms of free ecologically oriented will. The paper discusses the main methods of removal of nutrients from wastewater, as well as presents promising technologies and techniques. It contains the recommendations for optimal conditions for the precipitation of ammonia nitrogen from an ion exchange regenerator for further use as an ammonium fertilizer. The maximum efficiency of ammonium nitrogen removal was established. According to the results of the best options, the deposition of real ion exchange concentrates was carried out. The humidity level was set during the drying of mineral fertilizers. The moisture content determined the content of sediment, which is close to the number of water molecules to the formula of the fertilizer MgNH4PO4 · 5H2O. Complex phosphate fertilizer struvite was characterized. A comparative agronomic evaluation of synthetic struvite was performed. The influence of struvite on the processes of germination of cultivated plants was carried out. The results show that the method of obtaining struvite does not significantly affect the processes of wheat germination, and the determining factor in the effectiveness of fertilizers is the method of its application and dosage.
4
Content available Adsorption method of purification of stocks from chromium(III) ions by bentonite clays
Soloviy Christina, Malovanyy Myroslav, Palamarchuk Olga, Trach Iryna, Petruk Halyna, Sakalova Halyna, Vasylinych Tamara, Vronska Nataliya
Journal of Water and Land Development
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2021
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no. 48
99--104
EN
The process of sorption of chromium(III) ions with a stationary sorbent layer of bentonite clays was investigated. The main advantages of using bentonites in water purification technologies are described: powerful geological reserves, cheap process of rock extraction, easy preparation for transportation and use, possibility of using waste sorbents in other technologies that is why there is no need in costly regeneration. The influence of various factors (process duration, an adsorbent layer) on the degree of wastewater purification from chromium ions, the effect of pumping speed on the dynamic capacity of the sorbent was studied and the effective volume was determined. The adsorption efficacy increases with the increase of the adsorbent layer, what can be explained by the development of the active sorption surface. As the initial concentration of chromium ions increases, the time of appearance of the first traces of the contaminant at the exit of the column increases, as well as the total time to channeling. The results of the studies indicate a higher adsorption capacity of modified bentonite with respect to Cr3+ ions compared to its natural formula. The cleaning efficacy of the solution with a concentration of chromium ions of 0.5 g∙dm–3 is increased by 5% when using 15 g of modified bentonite and 6,5% in the case one uses 20 g compared to the natural form.
5
Content available Wastewater a Source of Nutrients for Crops Growth and Development
Tymchuk Ivan, Shkvirko Oksana, Sakalova Halyna, Malovanyy Myroslav, Dabizhuk Tetiana, Shevchuk Oksana, Matviichuk Oleksandr, Vasylinych Tamara
Journal of Ecological Engineering
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2020
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Vol. 21, nr 5
88--96
EN
The article deals with the main methods of nutrient removal from wastewater, as well as presents promising technologies and techniques. Struvite was characterized by a complex phosphorus fertilizer. The influence of struvite on the processes of germination of cultivated plants was investigated. The possibility of creating a growth substrate as an inexpensive and effective alternative to the disposal of the man-made wastes that contain an organic component was identified. The composition of the growth substrate was selected to ensure its functional properties. The growth substrate was tested by bioindication. Subsequently, the modification of the substrate by adding natural sorbents.
6
Content available Adsorption Extraction of Chromium Ions (III) with the Help of Bentonite Clays
Malovanyy Myroslav, Palamarchuk Olga, Trach Iryna, Petruk Halyna, Sakalova Halyna, Soloviy Khrystyna, Vasylinych Tamara, Tymchuk Ivan, Vronska Nataliya
Journal of Ecological Engineering
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2020
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Vol. 21, nr 7
178--185
EN
This work is dedicated to the development of scientific technologies of wastewater purification of different industrial enterprises from chrome ions through adsorption with the help of bentonite from Cherkasy field under dynamic conditions. The prospects and efficacy of bentonite clays application for wastewater purification are confirmed by their advantages over other sorbents, that is: they win in accessibility, cost, and possibility of regeneration and multiple applications. The level of wastewater purification during adsorption with a stationary sorbent layer under static conditions and under conditions of perfect mixing at different concentrations of chromium ions (III) and quantities of the dosed sorbent was determined. The significant difference in the purification level ranges from 70–87% and is more dependent on the stock concentration of chromium ions. It was found that the purification time of the same volumes of solutions for low concentrations is almost twice shorter under constant stirring, and of the same level at the stock concentrations of 1500 mg/dm3. The technological schemes of wastewater purification from the heavy metal ions contamination were developed.
7
Content available Treatment of Effluents from Ions of Heavy Metals as Display of Environmentally Responsible Activity of Modern Businessman
Malovanyy Myroslav, Sakalova Halyna, Vasylinycz Tamara, Palamarchuk Olha, Semchuk Jaroslav
Journal of Ecological Engineering
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2019
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Vol. 20, nr 4
167--176
EN
This work is dedicated to the development of scientific technologies of sewage water clarification of different industrial enterprises from chrome and nickel ions through adsorption by bentonite from Cherkasy field under dynamic conditions. The perspective and efficiency of application of bentonite clays for treatment of sewage water are confirmed by their advantages over other sorbents, that is: they win in accessibility, cost, and possibility of regeneration and multiple usages. The studies proved the expediency of bentonite clays usage for treatment of sewage water from chrome (III), zinc (ІІ) and nickel (II) ions. The static activities were determined and isotherms of adsorption of nickel, zinc and chrome ions were built. Deposition by gravity was chosen as the most optimal method reset of spend sorbent. Dosage of flocculants allows accelerating the process and increasing the degree of deposition. The basic parameters of the precipitation process of the used sorbent were established. The technological schemes of drain water purification from heavy metal ions contamination were developed; in addition to the following sedimentation and regeneration of sorbents.
8
Content available The Research on the Ammonium Concentrations in City Stocks and Further Sedimentation of Ion-Exchange Concentrate
Malovanyy Myroslav, Sakalova Halyna, Vasylinych Tamara, Kryklyvyi Rostyslav
Journal of Ecological Engineering
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2019
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Vol. 20, nr 1
158--164
EN
In this work, the exchange capacity and the selectivity of different ion-exchange products regarding the ammonium ions in treatment processes were measured; the regenerative preparation compounds influence on efficiency of conduction of ion-exchange products regeneration was determined. The adsorption processes were adapted to the known technological schemes of sewage and polluted surface water treatment that was polluted with ammonium ions. There were measured the technological aspects of water treatment by using adsorption on natural dispersed sorbents. The technological schemes of drain water treatment from ammonium ions were developed. The method of simultaneous removal of highly concentrated nitrogen and phosphorus was analyzed by physical and chemical precipitation, forming struvite, a by-product of magnesium ammonium orthophosphate hexahydrate. The analyses were conducted at various molar ratios of magnesium and phosphate ions and at various pH values. The comparative thermal analysis of chemical precipitation products and pure struvite was performed. The optimal conditions were identified to experience the maximum efficiency of simultaneous removal of ammonium nitrogen and phosphate ions from wastewater, forming MgNH4PO4·6H2O.
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