Wyniki wyszukiwania - BazTech

1

Magnetosorption Purification of Water from Petroleum Products

Vozniuk Marta, Shabliy Tetyana, Gomelya Mykola, Sirenko Ludmila, Sidorov Dmytro

Journal of Ecological Engineering

|

2023

|

Vol. 24, nr 11

155--162

EN

In this work, the processes of purification of oily waters using magnetites were investigated: magnetite synthesized according to the classical method and magnetites modified with hydrophobizing agents (sulfonol or alkylimidazolin). It was shown that magnetite modified with alkylimidazolin in doses of 50–200 mg/dm3 provides a high degree of oil removal from waters of various mineralization. The degree of water purification reaches 97.5–99.8%. Sulfonol-modified magnetite shows greater efficiency than conventional magnetite only at high concentrations (200 mg/dm3) and only in fresh water. Three hours is enough to ensure the maximum degree of purification of water-oil solutions. Changing the amount of hydrophobizing agent (alkylimidazolin) during the synthesis of magnetite reduces the effect of pH on the purification of both fresh and mineralized waters.

2

Electrochemical Purification of Oil-Containing Shipping Waters

Vozniuk Marta, Shabliy Tetyana, Gomelya Mykola, Sirenko Ludmila, Sidorov Dmytro

Journal of Ecological Engineering

|

2023

|

Vol. 24, nr 7

246--253

EN

The article describes the modern problems of formation and purification of marine oil-containing waters. The efficiency of using electrocoagulation to remove oil from water-oil emulsions of different mineralization using aluminum and iron anodes was studied. Treatment of water-oil solutions with an oil content of 100 mg/dm3 by electrocoagulation in a single-chamber electrolyzer provides 98–99% oil removal using these electrodes at an anode current density of 0.57–2.11 A/dm2 for highly mineralized waters and 0.34 A/dm2 for freshwater treatment during the first 15 minutes provides a reduction in oil concentration from 100 mg/dm3 to values at the level of 1.55–2.93 mg/dm3. When the water treatment time is extended to 45 minutes, greater efficiency in highly mineralized waters is provided by the aluminum anode.

3

Innovative Method for Water Deiron Ions Using Capillary Material

Trus Inna, Radovenchyk Iaroslav, Halysh Vita, Chuprinov Evhen, Benatov Daniel, Hlushko Olena, Sirenko Ludmila

Journal of Ecological Engineering

|

2022

|

Vol. 23, nr 3

174--182

EN

Among all known inorganic pollutants of wastewater and natural water that adversely affect water bodies, different living organisms and human beings, iron compounds are the most common. Before discharging the wastewater into water bodies, it is important to remove iron ions from wastewater. The application of capillary materials in water and wastewater treatment is a promising direction of ecology and technology. The capillary properties of materials allow the development of quite simple, autonomous, highly efficient and energy-saving systems for water purification. The aim of the present paper was the investigation of the influence of the basic conditions of the filtration process with the application of capillary materia on the efficiency of iron ions removal. The initial concentration of the model solution, pH and temperature of the filtration process, as well as the contact area of the liquid phase with oxygen of the air were studied. The proposed method is appropriate for the treatment of water in the concentration range from 5 to 10 mg/dm3 with an optimum pH in the range of 4–7. The experimental data showed high efficiency of capillary materials application, providing sufficient removal of iron ions from low concentrated solutions, compared to the traditional method of precipitation. The main advantage of the capillary materials is the simplicity of their application, quite high degree of purification and there no need to consume electricity or additional reagents, which allows creating autonomous water treatment facilities and plants.

4

Spent Biosorbents as Additives in Cement Production

Halysh Vita, Trus Inna, Nikolaichuk Alina, Skiba Margarita, Radovenchyk Iaroslav, Deykun Iryna, Vorobyova Viсtoria, Vasylenko Inna, Sirenko Ludmila

Journal of Ecological Engineering

|

2020

|

Vol. 21, nr 2

131--138

EN

The research is related to solving the problem of rational use of materials and to the creation of resource-saving technologies for the protection of the environment from pollution. Sorption technologies are quite effective in wastewater treatment, but most sorbents are quite expensive, and their regeneration raises the question of recycling of spent solutions. The cheapness and availability of raw material base of biosorbents makes these technologies attractive for wastewater treatment. The research is aimed at investigation of the ways to effectively utilize the spent sorbents, which are obtained after water purification, in the production of building materials. The obtained results allow creating a complex low-waste technology of water demineralization and purification from heavy metal ions.

5

Innovative Approach in Creation of Integrated Technology of Desalination of Mineralized Water

Trus Inna, Radovenchyk Iaroslav, Halysh Vita, Skiba Margarita, Vasylenko Inna, Vorobyova Viсtoria, Hlushko Olena, Sirenko Ludmila

Journal of Ecological Engineering

|

2019

|

Vol. 20, nr 8

107--113

EN

In this study, the optimum parameters of membrane desalinization of model solutions were determined and the required efficiency was achieved. Methods for stabilizing treatment of water before barometric desalination were developed to improve the efficiency of membranes. Methods of reagent processing of concentrates after barometric water were proposed to create a low-waste technologies for demineralization of water. It was shown that the precipitate can be used as an additive for cements and a sulfate activator for slag-portland cement.