DECONTAMINATION OF BIOLOGICAL AGENTS IN WASTEWATER THROUGH SYNERGETIC OXIDATIVE METHODS AS AN EFFECTIVE APPROACH FOR SAFEGUARDING PUBLIC HEALTH AND AQUATIC ECOSYSTEMS , Anatoly Grytsenko, , , Inna Tykha, , Iryna Zinchenko, , Olena Babich, , Iryna Yermakovych, and Chemistry and Chemical Technology, 2024 We employed a highly concentrated model of wastewater to conduct our research, accurately mimicking the composition of wastewater generated by milk processing enterprises. Wastewater contained milk protein, carbohydrates, and whey sugars. Domestic wastewater, which served as a source of indicator fecal microorganisms, was added to them. The water purification and disinfection scheme involved treating a model wastewater using the biosorption method with an immobilized biocenosis in a laboratory installation, followed by further purification and disinfection in a decontamination tank. In comparison, we assessed the degree of microorganism elimination using distinct methods such as ozonation, hydrogen peroxide treatment, and combination of О3/Н2О2. It has been demonstrated that model wastewater, purified and disinfected using the AOPs method, also contains dissolved oxygen, which is non-toxic to aquatic microbiota.
INTEGRATED METHOD FOR PLANNING WASTE MANAGEMENT BASED ON THE MATERIAL FLOW ANALYSIS AND LIFE CYCLE ASSESSMENT Vladyslav Bendiuh, Liudmyla Markina, Nataliia Matsai, Iryna Kyrpychova, Sergii Boichenko, Serhii Priadko, Iryna Shkilniuk, Bohdana Komarysta, Iryna Yermakovych, Oleh Vlasenko Eastern European Journal of Enterprise Technologies, 2023 This paper gives a solution to the problem of improving a solid waste management system through the integration of two systemic methodologies: material flow analysis and life cycle assessment. The proposed method serves to assess the effectiveness of the implementation of various waste management measures. The study was carried out with the detailing of the anaerobic digestion process since it is this recycling technology that plays a key role in reducing the amount of waste along with the production of renewable energy and in reducing the adverse effects on the external environment. Simulation of changes in waste properties in a certain processing sequence was carried out in order to obtain reliable information for further optimization of the system. The proposed modeling of waste treatment processes based on their constituent equations made it possible to adequately reflect the impact of changes in working conditions on all subsequent output flows. The analysis of material flows for an enterprise of mechanical and biological treatment of waste is presented and the use of the model in the context of the process of anaerobic digestion of household waste is illustrated. It was found that anaerobic digestion potentially makes it possible to obtain 4.1 Gj of biogas energy from 1 HSW, which corresponds to 460 kWh of electricity and 2060 MJ of heat. The developed method is based on a combination of analysis of material flows and life cycle assessment. The method acts as a tool for comparing alternative technologies and waste management scenarios. In the future, it can serve to support waste management decisions at both the strategic and operational levels
Implementation of the method of electrochemical destruction during disposal of pharmaceutical glass waste Nataliia Samoilenko, Iryna Yermakovych, Volodymyr Bairachnyi, Antonina Baranova Eastern European Journal of Enterprise Technologies, 2017 Active development of the pharmaceutical market shows a tendency to increase of pharmaceutical glass waste. The negative impact of waste on the environment shows itself in contamination of its elements by pharmaceutical substances contained in the waste, as well as the effects of medical glass and pathogens of infectious diseases. It was established that increasing of the ecologically safe handling of pharmaceutical glass waste and improvement of the disposal of glass can be provided by the method of electrochemical destruction of pharmaceutical substances. The optimal regimes and conditions to carry out the anodic oxidation process and the kinetic parameters of complete destruction of pharmaceutical substances (diclofenac, beta-estradiol, furosemide, atenolol, cefuroxime) were experimentally determined. The effectiveness of electrochemical destruction of five priority pharmaceutical substances, as well as their mixtures in a solution with sodium chloride using ORTA anode, was experimentally proved. It was established that complete destruction of pharmaceutical substances occurs during the process of electrochemical oxidation. It was noted that the introduction of this method makes it possible to destroy harmful pharmaceutical substances and to disinfect the solutions of pharmaceutical preparations infected with Escherichia coli bacteria in a single process. An additional positive effect of the introduction of the method is the improvement of the quality of pharmaceutical waste as a secondary material resource and promotion of the improvement in the technological processes of pharmaceutical waste disposal
Effect of pharmaceuticals and their derivatives on the environment Water and Ecology, 2014
The implementation of electrochemical destruction process for decontamination of wastewaters of medical establishments Наталья Николаевна Самойленко, Ирина Анатольевна Ермакович Eastern European Journal of Enterprise Technologies, 2014 Studies, conducted at leading laboratories in Europe and the United States, have revealed that of microconcentrations of pharmaceutical preparations and their derivatives have a significant negative impact on the quality of surface and drinking water, natural food chains of biota, reproductive disorders, developmental abnormalities. Purification from pharmaceutical preparations (PP) at the existing treatment plants, carried out mainly by the biological method, is low for some of the most stable molecules. The content of such hardly-biodegradable substances can be reduced by applying additional aftertreatment methods, including using advanced processes, among which the electrochemical destruction. In Ukraine, the infected sewage of medical establishments before being discharged into the sewer system pass disinfection by chlorination. Given this fact, the authors have investigated the effect of the electrochemical destruction in the presence of chloride ions on the infected wastewater, contaminated with hardly-biodegradable PP (Diclofenac, Ibuprofen, β-estradiol). Criterion for evaluating the wastewater decontamination was the state of the enzymatic machinery of bacteria, namely their dehydrogenase activity, which is analyzed during the control of treated wastewater at municipal treatment plants. It was found that the infected solutions, containing Diclofenac, Ibuprofen and β-estradiol, before the electrochemical destruction cause only inhibitory effect on E. coli, which is somewhat higher than in the case of the presence of one PP (Diclofenac) in it. After the electrochemical destruction in the presence of chloride ions, solutions, containing three components when in contact with a suspension of E. coli have a pronounced bactericidal effect on it. It lies in inhibiting the enzymatic activity of bacteria, fixed by the instrumental method and determined by the absence of pharmazan in the studied solution. The results show the possibility of using the destruction of hardly-degradable medical products, as well as water decontamination from pathogenic microflora in a single electrochemical treatment process of infected wastewater of medical establishments, pharmaceutical preparations, containing pharmaceutical preparations.
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