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Journal articles on the topic 'Water purification'

Author: Grafiati

Published: 4 June 2021

Last updated: 1 August 2024

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1

Malyovannyi, Myroslav, Galina Sakalova, Natalia Chornomaz, and Oleh Nahurskyy. "Water Sorption Purification from Ammonium Pollution." Chemistry & Chemical Technology 7, no. 3 (September 25, 2013): 355–58. http://dx.doi.org/10.23939/chcht07.03.355.

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2

Wiwanitkit, Somsri, and Viroj Wiwanitkit. "Water purification." AYU (An International Quarterly Journal of Research in Ayurveda) 33, no. 2 (2012): 317. http://dx.doi.org/10.4103/0974-8520.105261.

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3

Kinoshita, Hidetoshi. "River water purification. The purification of Tama river water." Japan journal of water pollution research 12, no. 7 (1989): 413–16. http://dx.doi.org/10.2965/jswe1978.12.413.

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4

STRUTYNSKA, Lesya. "EVALUATION OF ECONOMIC EFFICIENCY OF INNOVATIVE WATER TREATMENT TECHNOLOGIES OF SWIMMING POOLS AND WATER PARKS." Herald of Khmelnytskyi National University. Economic sciences 308, no. 4 (July 28, 2022): 202–9. http://dx.doi.org/10.31891/2307-5740-2022-308-4-32.

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Typical processes of water purification and water treatment of water park pools are considered. The method of economic estimation of efficiency of their application is offered. The methodology is based on the introduction of a number of indicators of the quality of the water treatment process of calculating the coefficient of “efficiency criterion” of water treatment of swimming pools. The purpose of this study was to develop an innovative technology of electrolytic-cavitation water treatment for swimming pools and water parks and to create a method of comparative evaluation of the effectiveness of modern water treatment technologies. A new technological scheme of electrolytic-cavitation water purification of public water bodies is proposed. A mathematical dependence has been created, which allows to objectively assess the effectiveness of various methods of water treatment and purification using the proposed indicator called “efficiency criterion” It is established that the proposed method of electrolytic-cavitation water purification has the highest values of efficiency from the considered water purification processes. This method is based on an organic combination of the advantages of such physical methods as electrolytic and cavitation disinfection of organic and biological water pollutants. The degree of purification and disinfection provided by him reaches 97-98%.

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5

Zelenko, Yuliya, Myroslav Malovanyy, and Lidiya Tarasova. "Optimization of Heat-and-Power Plants Water Purification." Chemistry & Chemical Technology 13, no. 2 (June 10, 2019): 218–23. http://dx.doi.org/10.23939/chcht13.02.218.

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6

Giammarchi, Marco. "Water purification in Borexino." International Journal of Modern Physics A 29, no. 16 (June 17, 2014): 1442008. http://dx.doi.org/10.1142/s0217751x14420081.

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Water Purification is often an important methodological tool in low radioactivity experiments. A variety of techniques have been exploited in the frame of the Borexino experiment to the goal of using water as a high purity shielding and as a reagent for cleaning and purification processes. This paper describes the water purification strategies and the purification results obtained in Borexino.

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7

Andersen, Astrid Oberborbeck. "Purification." Science, Technology, & Human Values 43, no. 3 (August 2, 2017): 379–400. http://dx.doi.org/10.1177/0162243917723079.

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In Arequipa, Peru’s second largest city, engineers work hard to control water flows and provide different sectors with clean and sufficient water. In 2011, only 10 percent of the totality of water used daily by Arequipa’s then close to 1 million people—in households, tourism, industry, and mining—was treated before it was returned to the river where it continues its flow downstream towards cultivated fields and, finally, into the Pacific Ocean. It takes specialized knowledge and manifold technologies to manage water and sustain life in Arequipa, and engineers are central actors for making water flow. Examining the ecology of water management, this article asks to what extent we can talk of a way of knowing and enacting water that is particular to engineers. Through engineering practices, a technical domain emerges as separate from and superior to political and social domains. This production of categories can be understood as practices of purification. However, a purely technical grip on water is never possible. Unruly elements, like weather, contamination, urban dwellers, and competing interests, interfere and make processes of intervention unstable. Water is never completely cleaned, and, equally, the continuous processes of purification of categories and domains take place while other processes work to blur their boundaries.

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8

Romanchuck, L. D. "HYDROPHYTE WATER PURIFICATION UNDER CONDITIONS OF “ZHITOMYRVODOKANAL” COMMUNAL ENTERPRISE." Biotechnologia Acta 9, no. 6 (2016): 58–71. http://dx.doi.org/10.15407/biotech9.06.058.

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9

Lavine, Marc S. "Pufferfish-inspired water purification." Science 372, no. 6540 (April 22, 2021): 357.5–358. http://dx.doi.org/10.1126/science.372.6540.357-e.

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10

Simmerling, Mary. "The Water Purification Study." Journal of Empirical Research on Human Research Ethics 2, no. 1 (March 2007): 90–91. http://dx.doi.org/10.1525/jer.2007.2.1.90.

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11

Brust-Carmona, H. "Water purification in Mexico." Science 266, no. 5187 (November 11, 1994): 956. http://dx.doi.org/10.1126/science.7973675.

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12

REISCH, MARC S. "INHERENTLY SAFER WATER PURIFICATION." Chemical & Engineering News 87, no. 6 (February 9, 2009): 22–23. http://dx.doi.org/10.1021/cen-v087n006.p022.

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13

Choo, Kwang-Ho, Hyunwoong Park, and Wonyong Choi. "Catalysis for water purification." Catalysis Today 282 (March 2017): 1. http://dx.doi.org/10.1016/j.cattod.2016.11.034.

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14

Eventov, V. L., M. Yu Andrianova, and M. V. Palyulina. "Water purification for hemodialysis." Biomedical Engineering 33, no. 2 (March 1999): 76–81. http://dx.doi.org/10.1007/bf02386173.

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15

Valli, Farida, Karishma Tijoriwala, and Alpana Mahapatra. "Nanotechnology for water purification." International Journal of Nuclear Desalination 4, no. 1 (2010): 49. http://dx.doi.org/10.1504/ijnd.2010.033766.

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16

Li, D., and M. Ma. "Nanosponges for water purification." Clean Products and Processes 2, no. 2 (September 22, 2000): 0112–16. http://dx.doi.org/10.1007/s100980000061.

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17

Nusawakan, Denny Jeremias, and Wahida Wahida. "Water Purification Equipment Design." Musamus AE Featuring Journal 4, no. 2 (April 12, 2022): 62–68. http://dx.doi.org/10.35724/maef-j.v4i2.5351.

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Water is a natural resource that is very important for human life and other living things. Some of the water sources in the Merauke district come from a well or a swamp. The water is generally blackish brown in colour, has a smell, and has taste. This study aimed to design a water purification device. The method used in this study consisted of the preparation stage and water purifier design. The second stage was the construction of the water purification device, and the last stage was the trial of the tool. The materials used in this study were: alum, gravel, palm fibre, sand, charcoal, large-size gravel, gauze, swamp water, water from a well, and faucets. The tools used are a gallon water dispenser and a gallon water dispenser holder. The filter tool consisted of 2-gallon water dispensers. The filter material consisted of palm fibre, charcoal, sand and large gravel. In the pre-trial process using swamp water (blackish brown) and well water (brown), the volume of each type of water used is 17 L by using a comparison of soaking times of 1 hour, 3 hours, and 24 hours in gallon water dispenser number 1 and number 2. Swamp water was used during the trial stage because it has a darker colour (brownish-black). The trial was carried out in 5 repetitions. Each repetition used 9 L of water. The water was filled in the first-gallon water container for 2 hours, then another badge was set aside in the second gallon for 1 hour. After four attempts, clear water was obtained, while in the 5th attempt, the water obtained was slightly turbid and contained high calcium. The test results for the pH meter of the swamp water was 6.7, and TDS (Total Dissolve Solid) result was 255 mg/L which was classified as very good.

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18

Hayashi, N., H. Yokota, H. Furumai, and M. Fujiwara. "Evaluation of source water quality for selection of drinking water purification system." Water Supply 8, no. 3 (September 1, 2008): 271–78. http://dx.doi.org/10.2166/ws.2008.071.

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When renewing water purification facilities, it is important to select a suitable purification system that can accommodate the quality of the respective source water. The Japan Water Research Center has been collecting a large amount of water quality data from drinking-water utilities across Japan, categorising and analysing these data, and evaluating the suitability of water purification processes. Multivariate analyses such as hierarchical cluster analysis and principal component analysis were performed to investigate the relationships between the quality of source water used for water supply and various factors that affect the purification process. Based on these results, water sources throughout Japan were clearly categorised into four groups, and suitable water purification systems were identified for the different water quality groups. The results can serve as an important reference for water utilities during future facility renewal projects.

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19

Obidjon Kizi, Tuychiyeva Mahliyo. "Aluminum Oxychloride For Coagulation More Effective Coagulant For Water Purification." American Journal of Interdisciplinary Innovations and Research 03, no. 05 (May 7, 2021): 192–201. http://dx.doi.org/10.37547/tajiir/volume03issue05-31.

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The article presents the data of water coagulation tests with the use of aluminum oxychlorides in three types of lightmetel also with optimal alkalinization. The results obtained allowed us to determine the best way to obtain high-quality water, even in the absence of alkalinization. Use of aluminum oxychloride instead of aluminum sulfate

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20

Hakak, Aaliya Rafiq, Shubham Bankhele, and Rajat Malpani P. S. Bhamare. "Modification and Advancements in the Traditional Method of Water Purification." International Journal of Trend in Scientific Research and Development Volume-2, Issue-6 (October 31, 2018): 1467–70. http://dx.doi.org/10.31142/ijtsrd14426.

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21

subramanian, G. Bala, and P. Bala shanmugam. "Performance Analysis of Solar Water Purification by using Thermal Method." Global Journal For Research Analysis 3, no. 8 (June 15, 2012): 90–92. http://dx.doi.org/10.15373/22778160/august2014/27.

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22

Osipov, P. A., R. A. Shayakhmetova, A. B. Sagyndykov, G. K. Maldybaev, and Zh А. Alybaev. "PREPARATION, PURIFICATION AND DISSOLUTION OF MOLYBDENUM OXYCHLORIDE COMPOUNDS IN WATER." Vestnik of the Kyrgyz-Russian Slavic University 22, no. 12 (2022): 72–79. http://dx.doi.org/10.36979/1694-500x-2022-22-12-72-79.

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23

Roy, Somnath. "Purification of Drinking Water with the Application of Modern Technology." International Journal of Science and Research (IJSR) 13, no. 3 (March 5, 2024): 1511–15. http://dx.doi.org/10.21275/sr24318103659.

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24

Shabatura, Yuriy, Maryna Mikhalieva, Sergij Korolko, Liubomyra Odosii, Oleksiy Kuznietsov, and Vasyl Smychok. "Autonomous Cyberphysical System of Controlled Treatment and Water Composition Control." Advances in Cyber-Physical Systems 5, no. 1 (November 28, 2017): 23–29. http://dx.doi.org/10.23939/acps2020.01.023.

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An autonomous cyberphysical adaptive system of controlled purification and control of water composition has been considered. Theoretical analysis and experimental studies of the functioning of the components of the proposed system of controlled purification and control of water composition has been performed. The proposed installation is designed to implement the technology of self-regulating system. When using intelligent digital means, it becomes an autonomous cyberphysical adaptive system of controlled purification and control of water composition.

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25

Naumova, Olga Valerievna, Elena Vladimirovna Spiridonova, and Danila Sergeevich Katkov. "Device for water treatment and water purification." Agrarian Scientific Journal, no. 4 (April 20, 2022): 89–91. http://dx.doi.org/10.28983/asj.y2022i4pp89-91.

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The article is devoted to the problems of water purification and organization of water treatment for engineering systems. Well-known methods of water treatment, such as mechanical, electrophysical, chemical, are not always able to ensure the quality of water in heat supply systems. Modern trends in the development of industry are aimed at the modernization of technological equipment in terms of the implementation of new progressive technologies. For the efficient operation of water heaters and to reduce heat losses in the heating and water supply system of the building, it is necessary to minimize scale deposits on the inner surface of the pipes. The article describes the principle of operation of an energy-combined liquid treatment device that can intensify the process of activation, disinfection and water purification. It is possible to improve the water quality by using a combined system that includes the effect of a high-voltage discharge pulse, cavitation and a magnetic field. Exposure to the liquid by a discharge pulse leads to the death of pathogenic microorganisms, as well as to ensure the emancipation of impurity ingredients. During magnetic treatment, the calcium, silicon and magnesium ions dissolved in water lose their ability to salt formation, and the impurities in the water are present in a suspended state. The magnetic field combines the suspensions contained in the water, the process of coagulation of impurity inclusions is observed, which after processing do not settle on the surfaces of pipelines, heat exchangers and other equipment. It is worth noting the high efficiency in cleaning and filtering various particles of polluting impurities, despite the fact that in most cases these impurities consist of completely non-magnetic materials. The use of the proposed method is of great interest in obtaining water of a high degree of purification for the chemical, microbiological and electronic industries.

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26

Naumova, Olga Valerievna, Elena Vladimirovna Spiridonova, and Danila Sergeevich Katkov. "Device for water treatment and water purification." Agrarian Scientific Journal, no. 4 (April 20, 2022): 89–91. http://dx.doi.org/10.28983/asj.y2022i4pp89-91.

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The article is devoted to the problems of water purification and organization of water treatment for engineering systems. Well-known methods of water treatment, such as mechanical, electrophysical, chemical, are not always able to ensure the quality of water in heat supply systems. Modern trends in the development of industry are aimed at the modernization of technological equipment in terms of the implementation of new progressive technologies. For the efficient operation of water heaters and to reduce heat losses in the heating and water supply system of the building, it is necessary to minimize scale deposits on the inner surface of the pipes. The article describes the principle of operation of an energy-combined liquid treatment device that can intensify the process of activation, disinfection and water purification. It is possible to improve the water quality by using a combined system that includes the effect of a high-voltage discharge pulse, cavitation and a magnetic field. Exposure to the liquid by a discharge pulse leads to the death of pathogenic microorganisms, as well as to ensure the emancipation of impurity ingredients. During magnetic treatment, the calcium, silicon and magnesium ions dissolved in water lose their ability to salt formation, and the impurities in the water are present in a suspended state. The magnetic field combines the suspensions contained in the water, the process of coagulation of impurity inclusions is observed, which after processing do not settle on the surfaces of pipelines, heat exchangers and other equipment. It is worth noting the high efficiency in cleaning and filtering various particles of polluting impurities, despite the fact that in most cases these impurities consist of completely non-magnetic materials. The use of the proposed method is of great interest in obtaining water of a high degree of purification for the chemical, microbiological and electronic industries.

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27

Olaoluwa Ayobami, Ogunkunle, Adeojo Oluwamumiyo Dorcas, and Idowu Olamide Christianah. "Water Purification Using Ceramic Pots Water Filter." Annals of Advances in Chemistry 7, no. 1 (July 19, 2023): 057–63. http://dx.doi.org/10.29328/journal.aac.1001044.

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In this study, ceramic pot filters are made from clay and burn-out materials (sawdust) that give pore sizes capable of capturing contaminants. Manufacturing specifications were selected to achieve some results. Clay and sawdust are mixed in a 50% volume ratio each and sawdust was subjected to hot water extraction to give a treated sample. Filters produced comprised of untreated, treated, and a mixture of treated and untreated sawdust samples, some of which were dipped in a solution of silver nanoparticles while others were not dipped (treated undipped, treated dipped, mixed dipped, mixed undipped, untreated undipped, untreated dipped). The effectiveness of the produced filters for the removal of contaminants such as dissolved solids, turbidity, and metals was tested using water collected from the Ikeji Arakeji River in Osun, Nigeria. The results showed the filter with treated sawdust undipped in a solution of silver nano gave the best result in the removal of the contaminants. Also, the filter with the mixtures of treated and untreated sawdust gave a better result compared to the standard. While the standard gave a better result than the untreated undipped ceramic filter pot. In conclusion, with proper cleaning and maintenance of the filters, they can effectively provide treated water suitable for drinking to rural people affected by polluted water sources.

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28

Ozaki, Shoichiro. "In clear water no fish can live. Water purification promote global warming, decline of countries." Biomedical Research and Clinical Reviews 2, no. 1 (December 24, 2020): 01–04. http://dx.doi.org/10.31579/2692-9406/004.

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Carbon dioxide CO2 increasing 2 ppm yearly since developed countries started elimination of NOx and elimination of NP. Global warming is happening by the decrease of CO2 assimilation from insufficient supply of NP fertilyzer. Developed countries hated NOx and NP and are eliminating NOx and NP. Japan is criticized as increasing much CO2. Japan is eliminating NOx,NP completely using much electricity producing 2 billion tone CO2 for the elimination of NOx and NP. Fish production of Japan dropped to 10%. GDP do not increase. If developed countries stop elimination of NOx,NP . CO2 assimilation is activated. Production of grain and fish increase. DGP will increase and global warming will stop.

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29

Şimşek, Barış, İnci Sevgili, Özge Bildi Ceran, Haluk Korucu, and Osman Nuri Şara. "Nanomaterials Based Drinking Water Purification: Comparative Study with a Conventional Water Purification Process." Periodica Polytechnica Chemical Engineering 63, no. 1 (July 17, 2018): 96–112. http://dx.doi.org/10.3311/ppch.12458.

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One of the ways of fully securing the presence of fresh water is water treatment process. Nanomaterials and nanotechnology offers an innovative solution for water treatment. In this study, physical, chemical and microbiological improvement rates of raw water were analyzed after filtration with graphene oxide. Graphene oxide's water treatment performance; silver nanoparticles, silver nanoparticles & graphene oxide composites that are commonly used in water treatment were compared with a traditional treatment method. When compared to the traditional method, there were improvements of 50 %, 40.7 %, 86.8 % and 45.5 % for color, TIC, TOC and hardness properties, respectively in water treatment by GO-based filtration with solid liquid ratio of 0.7 % (v/v). In water treatment with GO-Ag based filtration, 39.8 %, 69.8 %, 10.3 % and 28.6 % of improvements were obtained for TIC, TOC, hardness and LSI value compared to the conventional method. Both GO at 0.7 % (v/v) solid-liquid ratio and GO-Ag nanocomposites were successful in the number of total viable microorganisms and inhibiting microorganisms such as Escherichia coli fecal (gaita-infected), Salmonella typhi, Enterococcus faecalis, Pseudomona aeruginosa and Staphylococcus aureus. Among the studied parameters GO-Ag nanocomposites found to be the most suitable for drinking water treatment.

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30

Rajakovic, Vladana, and Ljubinka Rajakovic. "Conventional and contemporary methods for water treatment: From wastewater to ultra pure water." Chemical Industry 57, no. 7-8 (2003): 307–17. http://dx.doi.org/10.2298/hemind0308307r.

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In this paper modern methods and techniques for water purification are described. Good water quality and the rational use of water are an absolute need of the new millennium. The quality of life depends on water quality. Although it is an ecological priority to prohibit the contamination of water, it is a responsibility for environmental engineers and chemists to develop and apply effective methods for water purification. Beside well-known methods and techniques, it is necessary to create new methods for water purification and treatment. Water recycling is especially important. Plants with membrane separation technologies enable savings in fresh water with high efficiency. Methods for monitoring and controlling processes and water protection should be developed simultaneously with the development of techniques for the methods for purification.

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31

Chernov, Vladimir Aleksandrovich, Denis Igorevich Bevza, Oleg Petrovich Shuraev, and Aleksander Gennadievich Chichurin. "Methods of purifying oily water." Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies 2022, no. 3 (August 23, 2022): 50–59. http://dx.doi.org/10.24143/2073-1574-2022-3-50-59.

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The article describes currently used methods of cleaning ship oil-containing waters and suggests a new method of their disposal. There are shown the specific features of the composition and properties of oil-containing waters, current requirements for the purification of oil-containing waters depending on the areas of operation of the vessel. The main reasons for oily waters emerging are given, as well as the main factors affecting the formation of oily waters on ships. A picture of a water-fuel emulsion under a microscope is illustrated. There are analyzed the methods of oil-containing water purification used on ships, their advantages and disadvantages. There is given a particular description of water purification methods: mechanical purification (straining, settling, centrifugation), physico-chemical purification (adsorption, coalescence, flotation), chemical purification (ozonation, electrochemical purification), biological purification and the method of thermal neutralization (wet burning, fire neutralization). There is presented one of the methods of mechanical wastewater treatment, namely, a scheme for primary treatment of oily waters using a grate, when the oily waters pass through numerous holes and are separated from foreign objects and large solid inclusions. Another example of mechanical wastewater treatment is the design of a clarifier with inclined plates through which the water flow passes along the plates and is divided into layers, which restrains mixing and facilitates settling oil products. A diagram of a coalescing filter (physico-chemical cleaning method) is also presented and its advantages are described. The comparative characteristics of the methods of utilization and neutralization of oily waters are given. Special attention is paid to the development and improvement of the technology of thermal neutralization of ship oil-containing waters. A method of utilization of oily waters by the heat of ship diesel exhaust gases is proposed.

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32

Chelu, Mariana, Adina Magdalena Musuc, Monica Popa, and Jose M. Calderon Moreno. "Chitosan Hydrogels for Water Purification Applications." Gels 9, no. 8 (August 17, 2023): 664. http://dx.doi.org/10.3390/gels9080664.

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Chitosan-based hydrogels have gained significant attention for their potential applications in water treatment and purification due to their remarkable properties such as bioavailability, biocompatibility, biodegradability, environmental friendliness, high pollutants adsorption capacity, and water adsorption capacity. This article comprehensively reviews recent advances in chitosan-based hydrogel materials for water purification applications. The synthesis methods, structural properties, and water purification performance of chitosan-based hydrogels are critically analyzed. The incorporation of various nanomaterials into chitosan-based hydrogels, such as nanoparticles, graphene, and metal-organic frameworks, has been explored to enhance their performance. The mechanisms of water purification, including adsorption, filtration, and antimicrobial activity, are also discussed in detail. The potential of chitosan-based hydrogels for the removal of pollutants, such as heavy metals, organic contaminants, and microorganisms, from water sources is highlighted. Moreover, the challenges and future perspectives of chitosan-based hydrogels in water treatment and water purification applications are also illustrated. Overall, this article provides valuable insights into the current state of the art regarding chitosan-based hydrogels for water purification applications and highlights their potential for addressing global water pollution challenges.

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33

Gupta, N. Vishal, Nataraj Hm, and Ravi G. "VALIDATION OF WATER PURIFICATION SYSTEM." Asian Journal of Pharmaceutical and Clinical Research 10, no. 4 (April 1, 2017): 409. http://dx.doi.org/10.22159/ajpcr.2017.v10i4.16955.

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Objective: Validation of water treatment systems is required to achieve water with all preferred quality attributes. This also delivers a circumstantial to establish a total control over the process which screens efficacy, safety, and ultimately, the process outcomes. The goal of steering validation is to establish that a process when operated within established limits, yields a product of reliable and definite quality with a high degree of assurance.Methods: The current work is an effort to deliberate several aspects of validation comprising different approaches, machineries of water purification systems, equipment qualifications, performance testing phases, microbial and chemical analysis of water samples, documentation, and post-validationmonitoring. Mainly the validation is done for new water plants in pharmaceutical industry.Results and Discussion: Sampling of water was carried out after each step in the purification process, and the results were found within limits.Conclusion: Water purification systems must be operated in the interior regulatory guidelines as with pharmaceutical manufacture facilities.Successful achievement of validation is confirmed by various testing phases. Usually, a three-phase testing approach is recommended over an extendedperiod to prove reliability and robustness of the system for producing water of specified quality with a high degree of assurance.Keywords: Validation, Water purification systems, Quality attributes, Pharmaceutical manufacture facilities, Microbial and chemical analysis.

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34

Desa, Dian. "Water purification with Moringa seeds." Waterlines 3, no. 4 (April 1985): 22–23. http://dx.doi.org/10.3362/0262-8104.1985.019.

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35

Kyriienko, Petro G., Valentyna V. Kyriienko, and Andriy V. Chumachenko. "Portable device for water purification." Environmental safety and natural resources 29, no. 1 (April 1, 2019): 65–70. http://dx.doi.org/10.32347/2411-4049.2019.1.65-70.

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36

Malyshkina, E. S., E. I. Vyalkova, and E. Yu Osipova. "WATER PURIFICATION WITH NATURAL SORBENTS." Vestnik Tomskogo gosudarstvennogo arkhitekturno-stroitel'nogo universiteta. JOURNAL of Construction and Architecture, no. 1 (February 27, 2019): 188–200. http://dx.doi.org/10.31675/1607-1859-2019-21-1-188-200.

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Industrial waste can be considered as technological and economical raw materials in related industries, and their disposal in compliance with environmental legislation can be environmentally efficient. Nowadays, researchers search for an effective but relatively cheap absorption material to extract various contaminants from water. Of great greatest interest are the industrial waste that can be used in wastewater treatment technology as a secondary raw material. As a rule, active coals are used in drinking water systems and deep wastewater treatment. In the Tyumen region, this type of sorbent is quite expensive, since there are no natural coal deposits. The sawdust sorbent is proposed to applied as fuel briquettes. The sorption properties of the modified pine sawdust in relation to oil products are studied herein. The correlation analysis is carried out for each type of sorbent exposure. The solution regression and correlation coefficients are calculated. The obtained equations of regression are used to construct absorption isotherms characterizing the dependence of sorption capacity on the concentration of petroleum products in the solution. The sorption activity of sawdust increases by 1.4–4 times depending on the type of modification and intensification. It is shown that the total exchange capacity of pine sawdust on the model solution is only 19.4% lower than the that of activated carbon, which is very expensive for the Tyumen region. In the case of sawdust used for water purification, two environmental problems are solved simultaneously: cheap and effective cleaning of oil-saturated surface runoff and recycling of wood waste.

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37

Skandhan, KP, L. P. A. Karunatilake, Kulwant Singh, S. Amith, and K. P. S. Avni. "Water purification prescribed in Ayurveda." AYU (An International Quarterly Journal of Research in Ayurveda) 32, no. 4 (2011): 448. http://dx.doi.org/10.4103/0974-8520.96113.

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38

Chuikov, A. S., E. V. Sorokina, A. N. Volkov, U. V. Vedmetsky, and D. V. Shabanov. "Technology of primary water purification." IOP Conference Series: Earth and Environmental Science 1010, no. 1 (April 1, 2022): 012091. http://dx.doi.org/10.1088/1755-1315/1010/1/012091.

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Abstract The polluted wastewater treatment is one of the main issues in agro-industrial complex. This article is devoted to the primary water purification research for its further treatment with ferrate technology. The technology implies the wastewater treatment from household and industrial waste resulting from agricultural enterprises. The ferrate technology provides a high efficiency of pretreated water purification, in comparison with other existing methods. The article substantiates such an advantage accordingly. The waste generated as a result of wastewater treatment is non-toxic and disposal. The article proposes a new method of preliminary water purification based on its treatment between a galvanic couple in the presence of the calcium hydroxide. This method can be used at water treatment plants and at enterprises carrying out industrial activities in agriculture. The method is applicable only after mechanical filtration at the stage of primary water treatment. The proposed method provides water treatment from a wide range of various origins contaminants. The article also describes an experimental equipment specially designed for the proposed method’s implementation and further research. The equipment provides continuous water treatment consuming electricity, quicklime and compressed air. To maintain the lime particles in suspension condition the airflow is supplied through an aerator. The article applies the turbidimetric analysis method to conduct an in-depth analysis of the water treatment processes and determine the relative reagent concentration in the working area. The article also proves the absence of interface formation between water and milk of lime when subjected to air flow.

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Dolina, Leonid Fedorovich, Olena Kostiantynivna Nahorna, Yuliia Oleksandrivna Zhdan, and Dmytro Andriyovich Dolyna. "WATER PURIFICATION IN SPACE CONDITIONS." Journal of Rocket-Space Technology 29, no. 4 (November 17, 2021): 194–202. http://dx.doi.org/10.15421/452122.

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The life support system of the International Space Station must include the provision of drinking water to the crew and the treatment and disposal of wastewater. The cost of water delivery to the ISS is very high, so it is necessary to improve the technological schemes of wastewater treatment in space in order to reuse water in a complete closed cycle. The studies were performed based on the analysis of Ukrainian and foreign scientific sources and reporting data on the specifics of water use at space stations and the treatment methods of the used waters (wastewaters). In addition to international experience, our own research was used to develop a technology for wastewater treatment in space. The authors of the article analyzed the operation of existing wastewater treatment facilities in space and made recommendations for their use at the ISS. The developed technology for the treatment of wastewater and drinking water in zero-gravity (space) is based on the use of various reactors. They can be made of various materials (metal, plastic, etc.); they do not contain non-standard equipment that requires factory manufacturing. Compactness, complete tightness and small dimensions of bio- and physicochemical reactors allow them to be installed within the ISS. The cleaning process is easy to manage and can be fully automated. Water problems are central to the whole world, including in space. The ISS should have a system for the wastewater treatment and their closed use, since the supply of new water to stations significantly increases the cost of space exploration. Quality water is the health and well-being of people in space. Since there is no gravity in space, centrifugal forces (centrifuges) must be used to separate suspended particles from water. A comprehensive review of the issues related to wastewater treatment in space, allows us to conclude that it is necessary to regenerate water at International space stations (ISS). Indeed, to ensure the life support of the astronauts, a colossal amount of water is required, and its delivery to the ISS from the Earth is expensive.

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Іваненко, І. М. "CARBON NANOTUBES WATER PURIFICATION (REVIEW)." WATER AND WATER PURIFICATION TECHNOLOGIES. SCIENTIFIC AND TECHNICAL NEWS 15, no. 2 (November 1, 2014): 65–71. http://dx.doi.org/10.20535/2218-93001522014137604.

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Simizu, Masashi. "Lake Kojima water purification project." Japan journal of water pollution research 12, no. 1 (1989): 17–21. http://dx.doi.org/10.2965/jswe1978.12.17.

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42

Gonzalez-Perez, Alfredo, and Kenneth Persson. "Bioinspired Materials for Water Purification." Materials 9, no. 6 (June 3, 2016): 447. http://dx.doi.org/10.3390/ma9060447.

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Malik, Muhammad Arif, Abdul Ghaffar, and Salman Akbar Malik. "Water purification by electrical discharges." Plasma Sources Science and Technology 10, no. 1 (January 25, 2001): 82–91. http://dx.doi.org/10.1088/0963-0252/10/1/311.

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Havelaar, A. H. "Virus, Bacteriophages and Water purification." Veterinary Quarterly 9, no. 4 (October 1987): 356–60. http://dx.doi.org/10.1080/01652176.1987.9694125.

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IIJIMA, Hideki. "Polymeric Membranes for Water Purification." Kobunshi 44, no. 3 (1995): 121–26. http://dx.doi.org/10.1295/kobunshi.44.121.

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Bosley, Mark. "Water purification: Filtering for consistency." Filtration + Separation 48, no. 6 (November 2011): 42–43. http://dx.doi.org/10.1016/s0015-1882(11)70263-4.

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Smith, I. E. "Water Purification Using Heat Pumps." Applied Energy 66, no. 1 (May 2000): 89–90. http://dx.doi.org/10.1016/s0306-2619(99)00133-6.

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Smirnov, B. M., N. Yu Babaeva, G. V. Naidis, V. A. Panov, E. E. Son, and D. V. Tereshonok. "Bubble Method of Water Purification." High Temperature 57, no. 2 (March 2019): 286–88. http://dx.doi.org/10.1134/s0018151x19020202.

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Madhura, Lavanya, Suvardhan Kanchi, Myalowenkosi I. Sabela, Shalini Singh, Krishna Bisetty, and Inamuddin. "Membrane technology for water purification." Environmental Chemistry Letters 16, no. 2 (December 21, 2017): 343–65. http://dx.doi.org/10.1007/s10311-017-0699-y.

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Smith, I. E. "Water Purification using Heat Pumps." Applied Thermal Engineering 20, no. 17 (December 2000): 1707–8. http://dx.doi.org/10.1016/s1359-4311(99)00097-6.

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