Relevant bibliographies by topics / And water source degradation

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'And water source degradation'

Author: Grafiati
Published: 7 June 2025
Last updated: 2 August 2025

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Journal articles on the topic "And water source degradation"

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Chilagane, Nyemo, Papilon Mkome, Elius Chundu, et al. "Mapping and Assessing the Ecological Status of Water Sources in Mbarali River Sub catchment." Journal of Water Resources, Engineering, Management and Policy 1, no. 2 (2024): 1–11. https://doi.org/10.56542/wi.jwempo.v1.i2.a3.2024.

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Mbarali river subcatchment (MRS) is an important waterway that faces ongoing degradation due to climate change, land use change and poor institutional management which affected river flows in both quantity and quality. This study presents the findings of the cross-sectional survey conducted to identify, map and assess the ecological status of water sources in MRS. The overall objectives of this study are to provide a general understanding on the number of water sources and their spatial distribution, level of human induced pressure that detrimentally affect the quality of water sources and to
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Čizmić, Mirta, Davor Ljubas, Marko Rožman, Danijela Ašperger, Lidija Ćurković, and Sandra Babić. "Photocatalytic Degradation of Azithromycin by Nanostructured TiO2 Film: Kinetics, Degradation Products, and Toxicity." Materials 12, no. 6 (2019): 873. http://dx.doi.org/10.3390/ma12060873.

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In this paper, nanostructured TiO2 film was prepared by the by sol-gel process and dip-coating technique with titanium tetraisopropoxide as a precursor. After heat treatment at 550 °C, the deposited film was characterized by means of micro-Raman spectroscopy and atomic force microscopy (AFM). It was found that the TiO2 film consisted of only the TiO2 anatase phase and showed a granular microstructure. Photocatalytic degradation of azithromycin by using sol-gel nanostructured TiO2 film was studied to define the most effective degradation process for potential use in wastewater treatment. Differ
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Wu, Jiaxi, Haiquan Yang, Wei Yu, et al. "Effect of Ecosystem Degradation on the Source of Particulate Organic Matter in a Karst Lake: A Case Study of the Caohai Lake, China." Water 14, no. 12 (2022): 1867. http://dx.doi.org/10.3390/w14121867.

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The cycle of biogenic elements in lakes is intimately linked with particulate organic matter (POM), which plays a critical role in ecosystem restoration and the control of eutrophication. However, little is known regarding the functionality of ecosystem degradation on the source of POM in the water of a karst lake. To fill this knowledge gap, herein we compared the temporal and spatial distribution characteristics of POM prior to and after ecosystem degradation in the karst lake Caohai Lake, located in the southwest of China, and analyzed the source of POM using a combination of carbon and nit
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Yue, P. L., and O. Legrini. "Photochemical Degradation of Organics in Water." Water Quality Research Journal 27, no. 1 (1992): 123–38. http://dx.doi.org/10.2166/wqrj.1992.007.

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Abstract Trichloroethylene, phenol, 4-cholorophenol, catechol and a pesticide were degraded by two advanced oxidation processes: photolytic oxidation with hydrogen peroxide, andphotolytic oxidation with ozone. The reactions were studied in a batch photoreactor with a low pressure mercury lamp as the radiation source. The variation of the concentration of total organic carbon with time was measured. For the organics studied, the reaction kinetics for the reduction of total organic carbon (TOC) were found to follow a power law. The exponent of the power law varies with the initial TOC concentrat
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Aravinthan, V., T. Mino, S. Takizawa, H. Satoh, and T. Matsuo. "Sludge hydrolysate as a carbon source for denitrification." Water Science and Technology 43, no. 1 (2001): 191–99. http://dx.doi.org/10.2166/wst.2001.0047.

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External carbon sources such as methanol and acetate are applied in order to improve the denitrification efficiency in biological nitrogen removal processes. Excess sludge wasted from the treatment plants contains organic carbon that could be used as a feasible carbon source for denitrification. However, the excess sludge needs to be hydrolyzed first before being utilized as a carbon source. The objective of this research is to evaluate the biodegradability of the sludge hydrolysate obtained using alkaline, acid, autoclaved and combined solubilization methods. The experimental results suggest
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Ferreira, Fernanda Laurinda Valadares, Francielle de Cássia Coelho Vieira, Izabelle de Paula Sousa, Flávio Pimenta Figueiredo, and Leidivan Almeida Frazão. "Environmental diagnosis of water source in a Brazilian Cerrado watershed." Caderno de Ciências Agrárias 12 (September 25, 2020): 1–11. http://dx.doi.org/10.35699/2447-6218.2020.20739.

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A lack of planning characterize the most demographic occupation process in Brazil, occurring in a disorderly manner and with inappropriate occupations, resulting in damage to natural resources. This process is recurrent in the Cerrado Biome, currently the agricultural frontier of the country. Thus, the objective of this work was to identify anthropic activities and classify the conservation status in the headsprings (water sources) and surroundings areas of a watershed inserted in the Cerrado biome, besides proposing measures to prevent and control the different degradation processes. From Feb
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Boroughani, Mahdi, Fahimeh Mirchooli, Mojtaba Hadavifar, and Stephanie Fiedler. "Mapping land degradation risk due to land susceptibility to dust emission and water erosion." SOIL 9, no. 2 (2023): 411–23. http://dx.doi.org/10.5194/soil-9-411-2023.

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Abstract. Land degradation is a cause of many social, economic, and environmental problems. Therefore identification and monitoring of high-risk areas for land degradation are necessary. Despite the importance of land degradation due to wind and water erosion in some areas of the world, the combined study of both types of erosion in the same area receives relatively little attention. The present study aims to create a land degradation map in terms of soil erosion caused by wind and water erosion of semi-dry land. We focus on the Lut watershed in Iran, encompassing the Lut Desert that is influe
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Uyeno, Yutaka, and Akito Matsumoto. "Changes in bacterial composition during in vitro oil degradation experiments using activated sludge from different sources." Water Practice and Technology 14, no. 4 (2019): 931–36. http://dx.doi.org/10.2166/wpt.2019.076.

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Abstract We monitored bacterial compositional changes during in vitro food oil degradation experiments, wherein activated sludge (AS) from different sources was employed as seed. Two AS samples were collected from different aeration processes at the same plant and one sample was collected from a different plant; these were used for the degradation of synthetic wastewater containing commercial food oil as the sole carbon source. A 16S rRNA gene-based next generation sequencing technique was applied to study the bacterial community in the seed AS samples and resultant water after in vitro degrad
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Jia, Ling, Chang Hai Qin, and Hong Gan. "Method for Cost Evaluation of the Environmental Degradation of Water." Advanced Materials Research 361-363 (October 2011): 1627–33. http://dx.doi.org/10.4028/www.scientific.net/amr.361-363.1627.

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Evaluation of the cost of the environmental degradation of water is one of the difficulties in the System of Environmental-Economic Accounting for Water. In this study, the concept of the cost of the environmental degradation of water was analyzed for the first time. Based on a discussion of evaluation methods related to environmental degradation of water at home and abroad, and the characteristics of the cost of the environmental degradation of water, a set of relatively complete and operational methods to evaluate the cost of the environmental degradation of water was proposed. The calculati
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McDonald, Robert I., Katherine F. Weber, Julie Padowski, Tim Boucher, and Daniel Shemie. "Estimating watershed degradation over the last century and its impact on water-treatment costs for the world’s large cities." Proceedings of the National Academy of Sciences 113, no. 32 (2016): 9117–22. http://dx.doi.org/10.1073/pnas.1605354113.

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Urban water systems are impacted by land use within their source watersheds, as it affects raw water quality and thus the costs of water treatment. However, global estimates of the effect of land cover change on urban water-treatment costs have been hampered by a lack of global information on urban source watersheds. Here, we use a unique map of the urban source watersheds for 309 large cities (population > 750,000), combined with long-term data on anthropogenic land-use change in their source watersheds and data on water-treatment costs. We show that anthropogenic activity is highly correl
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Dissertations / Theses on the topic "And water source degradation"

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Vesna, Despotović. "Fotolitička i fotokatalitička razgradnja odabranih herbicida u vodenoj sredini." Phd thesis, Univerzitet u Novom Sadu, Prirodno-matematički fakultet u Novom Sadu, 2014. https://www.cris.uns.ac.rs/record.jsf?recordId=86616&source=NDLTD&language=en.

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Ispitana je kinetika i mehanizam fotokatalitičke&nbsp;razgradnje herbicida kvinmeraka i klomazona u prisustvu&nbsp;UV/TiO<sub>2</sub>&nbsp; Degussa P25, odnosno piklorama i&nbsp; klopiralida&nbsp;primenom UV/TiO<sub>2</sub>&nbsp; Wackherr pri različitim&nbsp;eksperimentalnim uslovima. Praćena je i kinetika&nbsp;razgradnje odabranih herbicida direktnom fotolizom uz&nbsp;primenu sunčevog, UV i vidljivog zračenja, kao i u&nbsp;odsustvu svetlosti. Pored toga, upoređena je efikasnost&nbsp;UV/TiO<sub>2</sub>&nbsp; Degussa P25, odnosno UV/TiO<sub>2</sub>&nbsp; Wackherr sa&nbsp;vidljivim zračenjem, ka
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Wang, Yuxin. "Source Water Quality Assessment and Source Water Characterization for Drinking Water Protection." Research Showcase @ CMU, 2014. http://repository.cmu.edu/dissertations/416.

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Source water quality plays a critical role in maintaining the quality and supply of drinking water, yet it can be negatively affected by human activities. In Pennsylvania, coal mining and treatment of conventional oil and gas drilling produced wastewaters have affected source water quality for over 100 years. The recent unconventional natural gas development in the Marcellus Shale formation produces significant volumes of wastewater containing bromide and has the potential to affect source water quality and downstream drinking water quality. Wastewater from coal-fired power plants also contain
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Tu, Yijun. "Water absorption and degradation in adhesive joints." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0002/MQ46087.pdf.

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Shiga, Yoshinori. "Precise estimation of vocal tract and voice source characteristics." Thesis, University of Edinburgh, 2006. http://hdl.handle.net/1842/940.

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This thesis addresses the problem of quality degradation in speech produced by parameter-based speech synthesis, within the framework of an articulatory-acoustic forward mapping. I first investigate current problems in speech parameterisation, and point out the fact that conventional parameterisation inaccurately extracts the vocal tract response due to interference from the harmonic structure of voiced speech. To overcome this problem, I introduce a method for estimating filter responses more precisely from periodic signals. The method achieves such estimation in the frequency domain by appro
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Allen, David Peter. "Photocatalytic degradation of atrazine." Thesis, University of Bath, 1995. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.296324.

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Vasiliou, C. "Degradation and stabilisation of blue polythene water pipe." Thesis, Manchester Metropolitan University, 1988. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.383674.

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Vaidya, Rajendra D. "Solid Waste Degradation, Compaction and Water Holding Capacity." Thesis, Virginia Tech, 2002. http://hdl.handle.net/10919/35432.

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Bioreactor landfills offer a sustainable way to achieve increased waste degradation along with benefits such as enhanced landfill gas (LFG) recovery, reduction in leachate pollution potential and rapid increase in landfill volumetric capacity. It also offers significant reduction in post closure management activities as leachate treatment, LFG impact on the environment and improves the potential for land reuse. The regulatory 30 year post-closure period is believed to account for attenuation of organics, metals and trace pollutants of adverse environmental consequences. Methodologies to improv
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Wang, Rongchun. "Degradation Kinetics of Uronic Acids in Subcritical Water." Kyoto University, 2011. http://hdl.handle.net/2433/142316.

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Kyoto University (京都大学)<br>0048<br>新制・課程博士<br>博士(農学)<br>甲第16118号<br>農博第1854号<br>新制||農||988(附属図書館)<br>学位論文||H23||N4588(農学部図書室)<br>28697<br>京都大学大学院農学研究科食品生物科学専攻<br>(主査)教授 安達 修二, 教授 北畠 直文, 教授 入江 一浩<br>学位規則第4条第1項該当
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Lifongo, Lydia Likowo. "Decomposition of haloacetic acids in water." Thesis, University of East Anglia, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.268583.

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Bergman, Lauren E. "Predicting Water Treatment Challenges From Source Water Natural Organic Matter Characterization." Research Showcase @ CMU, 2016. http://repository.cmu.edu/dissertations/781.

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Natural Organic Matter (NOM), a pervasive component of natural waters, presents many challenges for water treatment systems. Its complex and heterogeneous nature makes NOM difficult to characterize and highly variable in its effect in water treatment. Two specific water treatment challenges caused by NOM and dependent on its character are disinfection by-product (DBP) formation and organic fouling in pressure-driven membranes. Many NOM characterization methods exist and have shown success in highly controlled laboratory settings; however, evaluating their effectiveness in full-scale systems to
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Books on the topic "And water source degradation"

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1935-, Cook Charles D., ed. In the matter of a public hearing to consider the proposed regulations for the protection from contamination, degradation and pollution of the New York City water supply and its sources: Before the New York State Senate Standing Committee on Local Government : proceedings, February 27, 1991. P.E. Williman, certified shorthand reporter, 1991.

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1935-, Cook Charles D., ed. In the matter of a public hearing to consider the proposed regulations for the protection from contamination, degradation and pollution of the New York City water supply and its sources: Before the New York State Senate Committee on Local Government : proceedings, December 7, 1990. P.E. Williman, certified shorthand reporter, 1990.

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1935-, Cook Charles D., ed. In the matter of a public hearing on the discussion draft: Proposed regulations for the protection from contamination, degradation and pollution of the New York City water supply and its sources, as proposed by New York City : before the New York State Senate Standing Committee on Local Government : proceedings, November 14, 1990. P.E. Williman, certified shorthand reporter, 1990.

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1935-, Cook Charles D., ed. In the matter of a public hearing on the discussion draft: Proposed regulations for the protection from contamination, degradation and pollution of the New York City water supply and its sources, as proposed by New York City : before the New York State Senate Standing Committee on Local Government ; proceedings, November 15, 1990. P.E. Williman, certified shorthand reporter, 1990.

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1935-, Cook Charles D., ed. In the matter of a public hearing on the discussion draft: Proposed regulations for the protection from contamination, degradation and pollution of the New York City water supply and its sources, as proposed by New York City : before the New York State Senate Standing Committee on Local Government ; proceedings, November 13, 1990. P.E. Williman, certified shorthand reporter, 1990.

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1935-, Cook Charles D., ed. In the matter of a public hearing on the discussion draft: Proposed regulations for the protection from contamination, degradation and pollution of the New York City water supply and its sources, as proposed by New York City : before the New York State Senate Standing Committee on Local Government : proceedings, December 14, 1990. P.E. Williman, certified shorthand reporter, 1990.

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Educational Resources Information Center (U.S.), ed. Water: Source of health, source of illness : water in Africa. Peace Corps, World Wise Schools, 2000.

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World Wildlife Fund--India. Environmental Services Group. and India. Ministry of Environment and Forests., eds. Eco-degradation at Kuttanad. Environmental Services Group, World Wildlife Fund--India, 1987.

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Melesse, Assefa M., Mekdelawit M. Deribe, and Ethiopia B. Zeleke, eds. Land and Water Degradation in Ethiopia. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-60251-1.

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Sunrise, Engineering Inc. Glenrock water source project. Sunrise Engineering, 2000.

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Book chapters on the topic "And water source degradation"

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Gilevska, T., and G. Imfeld. "Compound-Specific Isotope Analyses to Investigate Pesticide Transformation in Soil and Water." In Tracing the Sources and Fate of Contaminants in Agroecosystems. Springer Nature Switzerland, 2024. http://dx.doi.org/10.1007/978-3-031-47265-7_4.

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AbstractThis chapter provides an overview of approaches employed in tracking pesticide degradation within agricultural catchments, focusing on the existing challenges and burgeonic prospects afforded by pesticide compound-specific isotope analyses (CSIA). The discussion centers on the development of CSIA for low concentrations of pesticides in environmental matrices. Additionally, the chapter explores the viability of implementing pesticide CSIA in field applications for tasks such as for source apportionment, discerning transformation reactions, and quantifying the extent of degradation on a
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Kharaka, Yousif K., James J. Thordsen, and Gil Ambats. "Environmental degradation associated with exploration for and production of energy sources in USA." In Water-Rock Interaction. Routledge, 2021. http://dx.doi.org/10.1201/9780203734049-6.

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Chouba, Cyrine, Sophie Delpoux, Léa Causse, et al. "Status of water quality and impact of dredging activities in four ports of the gulf of Aigues Mortes (France)." In Ninth International Symposium “Monitoring of Mediterranean Coastal Areas: Problems and Measurement Techniques”. Firenze University Press, 2022. http://dx.doi.org/10.36253/979-12-215-0030-1.37.

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Marinas located at the land-sea interface, are both subject to autochthonous sources of pollution and form a receptacle for terrigenous inputs from upstream areas resulting in the qualitative degradation. The objective of this project is to carry out a diagnosis of the chemical and microbiological contamination of the waters of the 4 ports located in the Gulf of Aigues Mortes (France) concerning a mutualized dredging operation. The originality of the results lies in the fact that they will allow not only to compare the chemical and microbiological qualities of the waters of the marinas, but al
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Maestas, Jeremy D., Joseph M. Wheaton, Nicolaas Bouwes, Sherman R. Swanson, and Melissa Dickard. "Water Is Life: Importance and Management of Riparian Areas for Rangeland Wildlife." In Rangeland Wildlife Ecology and Conservation. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-34037-6_7.

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AbstractWater scarcity and climatic variability shape human settlement patterns and wildlife distribution and abundance on arid and semi-arid rangelands. Riparian areas–the transition between water and land–are rare but disproportionately important habitats covering just a fraction of the land surface (commonly &lt; 2% in the western U.S.). Riparian areas provide critical habitat for fish and other aquatic species, while also supporting the vast majority (70–80%) of terrestrial wildlife during some portion of their life cycle. Diverse riparian types serve as vital sources of water and late sum
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Spencer, Ruth Viola. "Improvement of Human and Environmental Health Through Waste Management in Antigua and Barbuda." In Fostering Transformative Change for Sustainability in the Context of Socio-Ecological Production Landscapes and Seascapes (SEPLS). Springer Singapore, 2021. http://dx.doi.org/10.1007/978-981-33-6761-6_12.

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AbstractAntigua and Barbuda is currently experiencing an expansion in integrated waste management driven by local community groups. These events are catalytic and transformational, fit well into SEPLS methodologies, and contribute to many of the biodiversity targets and Sustainable Development Goals (SDGs). With waste being a direct driver of and major challenge for biodiversity, climate change and land degradation, many positive multi-dimensional impacts are being seen, realised and manifested that contribute positively to reducing land-based sources of pollution through community stewardship
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Kyropoulou, Dafni, Eustratios Heliades, Petros Karalis, George Diamantopoulos, Sophia Gougoura, and Elissavet Dotsika. "δ13C and δ18O Stable Isotope Analysis Applied to Indicate Sources of Water-Induced Degradation in Historic Monuments." In Lecture Notes in Civil Engineering. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-90788-4_60.

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Potempa, Thomas, James Henderson, Julia Tetzner, Sofie Hoang, Max Ehleben, and Max Juraschek. "Waste to Value Process Chain for Recycling of Fishing Gear Collected from Coastal Waters." In Lecture Notes in Mechanical Engineering. Springer Nature Switzerland, 2025. https://doi.org/10.1007/978-3-031-93891-7_67.

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Abstract Plastic waste in coastal waters has become a major environmental concern and a visible sign of ocean pollution. A significant share of the floating waste material originates from used and lost fishing gear. By establishing suitable recycling processing chains, used fishing gear can become a valuable resource for the manufacturing of products, fostering its extraction from the water and boosting local economies. Post-use fishing gear, however, is a very challenging input material for processing into recylcates. Understanding its degradation mechanisms is crucial for designing a recycli
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Nzengya, Daniel M., and Francis Rutere. "Primary Versus High School Students’ Environmental Attitudes and Pro-environmental Behavior: The Case of Embu County, Kenya." In African Handbook of Climate Change Adaptation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-45106-6_134.

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AbstractDegradation of natural resources exacerbates a country’s vulnerability to the effects of climate change. IPCC projections suggest that countries within the horn of Africa, which include Kenya, will suffer most from extreme climate change events, particularly more frequent and prolonged droughts. Women and children suffer disproportionately from the consequences of environmental degradation. Public participation is one of the strategies governments pursue to combat environmental degradation; however, there has been limited research to better understand students’ environmental attitudes
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Bell, David, Jean-François Doussin, and Thorsten Hohaus. "Preparation of Simulation Chambers for Experiments." In A Practical Guide to Atmospheric Simulation Chambers. Springer International Publishing, 2023. http://dx.doi.org/10.1007/978-3-031-22277-1_3.

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AbstractWhen setting up a simulation chamber experiment it is essential, in order to ensure meaningful results, to start with a well-controlled chemical system. Coming after the chapter dealing with the requested careful characterization of the simulation chamber, the present chapter describes the preparation of the chamber before running an experiment. It includes various chamber cleaning protocols, the preparation of a clean chamber atmosphere (the reacting mixture) and a series of protocols for blank experiments. Indeed, having a clean atmosphere in a simulation chamber, as free as possible
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Hazen, Terry C., and Gary A. Toranzos. "Tropical Source Water." In Drinking Water Microbiology. Springer New York, 1990. http://dx.doi.org/10.1007/978-1-4612-4464-6_2.

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Conference papers on the topic "And water source degradation"

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Gu, Ji-Dong, and Ralph Mitchell. "Degradation of Polyurethane by a Bacterium Isolated from Soil." In CORROSION 2004. NACE International, 2004. https://doi.org/10.5006/c2004-04584.

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Abstract Polymeric materials are widely used in engineering facilities for protection against corrosion and growth of microorganisms. They are known to be susceptible to microbial degradation, but few investigations have examined both the basic microbiology and the biochemical mechanisms of degradation involved. An enrichment culture was established using water-soluble polyurethane as the sole source of carbon and energy and soil as an inoculum. In subsequent enrichment transfers in minimum salt medium supplemented with polyurethane, growth of the bacterial consortium was observed, indicating
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Licina, George. "Corrosion of Service Water Piping in Nuclear Systems." In CORROSION 2007. NACE International, 2007. https://doi.org/10.5006/c2007-07590.

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Abstract Service water systems are a critical part of the infrastructure of nuclear plants. Corrosion has been shown to be the predominant degradation mechanism for service water piping. Because of the diversity of water sources (seawater, brackish water, and various fresh waters), piping materials (bare carbon steel, coated or lined carbon steel, stainless steels, and non-ferrous metals), and service water system designs, a guideline for service water piping requires a set of concise rules, rather than a proscriptive chemical “recipe” for the system to achieve its design life.
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Fichter, Jennifer, Geddy Hamblen, Chris Janes, Elizabeth J. Summer, Elizabeth J. Summer, and Abigail Mills. "Use of a Methodological Panel to Identify the Source of Problematic Microbial Contamination in an Oil Shale Field." In CORROSION 2017. NACE International, 2017. https://doi.org/10.5006/c2017-09019.

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Abstract An oil shale field was found to exhibit classic signs of a heavy microbial burden, including incidences of hydrogen sulfide production, downhole and surface microbially influenced corrosion, downhole pump and surface equipment fouling and fracturing fluid and drilling mud degradation. Over 140 samples, including formation core material, drilling muds, fracturing fluid source waters, production well samples, samples collected from failed pipe surfaces and samples from salt water disposal facilities, were collected in a comprehensive survey. Microbial activity was measured in parallel u
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Gu, Ji-Dong, Chun Lu, K. Thorp, A. Crasto, and R. Mitchell. "Fungal Degradation of Fiber-Reinforced Composite Materials." In CORROSION 1996. NACE International, 1996. https://doi.org/10.5006/c1996-96275.

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Abstract We described in a previous report that a fungal consortium isolated from degraded polymeric materials was capable of growth on pre-sterilized coupons of five composites, resulting in deep penetration into the interior of all materials within 5 weeks.1 Data describing the utilization of composite constituents as nutrients for the microflora are described in this paper. Increased microbial growth was observed when composite extract was incubated with the fungal inoculum at ambient temperatures. Scanning electron microscopic (SEM) observation of carbon fibers incubated with a naturally d
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Tanji, Yasunori, Kazuya Toyama, and Kazuhiko Miyanaga. "Identification of Crude Oil Component Which Facilitate Biological Souring." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-3853.

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Abstract Seawater injection into oil reservoirs for secondary oil recovery is frequently accompanied by souring (increased sulfide concentrations). Production of hydrogen sulfide causes various problems, such as microbiologically influenced corrosion (MIC), deterioration of crude oil. Sulfate-reducing bacteria (SRB) are considered to be major players in souring. Volatile fatty acids (VFAs) in oil field water are assumed to be produced by microbial degradation of crude oil. The objective of this research is to investigate mechanisms of souring from the view of VFA production by the crude oil bi
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Videla, H. A., P. S. Guiamet, S. DoValle, and E. H. Reinoso. "Effects of Fungal and Bacterial Contaminants of Kerosene Fuels on the Corrosion of Storage and Distribution Systems." In CORROSION 1988. NACE International, 1988. https://doi.org/10.5006/c1988-88091.

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Abstract The electrochemical behavior of pure aluminum, 2024 alloy and mild steel have been studied in the presence of several species of fungi and bacteria isolated from kerosene fuels storage and distribution systems. Microbial growth facilitates passivity breakdown mainly through the action of organic acidic metabolites derived from hydrocarbon degradation. Their corrosive effect depends on the pH and electrolyte composition of the medium, especially with reference to chloride and nitrate levels. Microbial adhesion to the metal surface enhances metal dissolution. The metabolic activities of
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Li, Mingrui, Douglas A. Allan, San Dinh, et al. "NMPC for Mode-Switching Operation of Reversible Solid Oxide Cell Systems." In Foundations of Computer-Aided Process Design. PSE Press, 2024. http://dx.doi.org/10.69997/sct.103553.

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Solid oxide cells (SOCs) are a promising dual-mode technology that generates hydrogen through high-temperature water electrolysis and generates power through a fuel cell reaction that consumes hydrogen. Reversible operation of SOCs requires a transition between these two modes for hydrogen production setpoints as the demand and price of electricity fluctuate. Moreover, a well-functioning control system is important to avoid cell degradation during mode-switching operation. In this work, we apply nonlinear model predictive control (NMPC) to an SOC module and supporting equipment and compare NMP
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Lee, S. K., J. F. McIntyre, and W. H. Hartt. "New Developments in Laboratory Testing of Epoxy Coated Reinforcing Steel." In CORROSION 1994. NACE International, 1994. https://doi.org/10.5006/c1994-94290.

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Abstract The corrosion resistance of epoxy coated reinforcing steel from ten different sources was evaluated by 1) 14 day immersion in 80°C distilled water and 3.5% NaCl, 2) longer-term ambient temperature immersion in these same solutions as well as simulated pore water both with and without chlorides and 3) outdoor exposure in concrete slabs with different wet-dry ponding cycles. Coating performance was assessed during the course of the exposures by electrochemical impedance spectroscopy and by defect characterization and at the conclusion of exposure by adhesion testing. Preliminary evaluat
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Fichter, Jennifer, Kenneth Wunch, Robert Moore, Elizabeth Summer, Shelby Braman, and Phineas Holmes. "How Hot Is Too Hot for Bacteria? a Technical Study Assessing Bacterial Establishment in Downhole Drilling, Fracturing and Stimulation Operations." In CORROSION 2012. NACE International, 2012. https://doi.org/10.5006/c2012-01310.

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Abstract Bacterial contamination from drilling and fracturing can lead to serious problems in unconventional oil and gas shale plays. Large water volumes for these processes are transported from aquifers, municipal waters, rivers, lakes, ponds or oilfield flowback water to the wellsite and stored in frac tanks or earthen impoundments. Typically, these waters are contaminated with bacteria. Furthermore, fracturing fluids contain gelling agents or polyacrylamide-based friction reducers which are readily available bacterial food sources. If these fluids are insufficiently treated, establishment o
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Dao, Henry. "A Hygienic, Safe and Powerful Solution to Control Problematic Microorganisms." In CORROSION 2014. NACE International, 2014. https://doi.org/10.5006/c2014-4144.

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Abstract Bacterial contamination from drilling and fracturing can lead to serious problems in unconventional oil and gas shale plays. Large water volumes for these processes are transported from aquifers, municipal waters, rivers, lakes, ponds or oilfield flowback water to the well site and stored in frac tanks or earthen impoundments. Typically, these waters are contaminated with bacteria. Furthermore, fracturing fluids contain gelling agents or polyacrylamide-based friction reducers which are readily available bacterial food sources. If these fluids are insufficiently treated, establishment
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Reports on the topic "And water source degradation"

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Cardascia, Silvia, and Tom Panella. Achieving Water Security in the Yellow River Basin. Asian Development Bank, 2023. http://dx.doi.org/10.22617/brf230385-2.

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This brief explores ways of strengthening water security in the Yellow River basin of the People’s Republic of China. It discusses the challenges of water shortages, flooding, soil erosion, high loads of sedimentation, water pollution, environmental degradation, and climate change. It suggests ways of promoting integrated source-to-sea water management in the basin, including by strengthening institutional capacity and coordination mechanisms.
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Schutt, Timothy, and Manoj Shukla. Predicting the impact of aqueous ions on fate and transport of munition compounds. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/41481.

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A model framework for natural water has been developed using computational chemistry techniques to elucidate the interactions between solvated munition compounds and eight common ions in naturally occurring water sources. The interaction energies, residence times, coordination statistics, and surface preferences of nine munition related compounds with each ion were evaluated. The propensity of these interactions to increase degradation of the munition compound was predicted using accelerated replica QM/MM simulations. The degradation prediction data qualitatively align with previous quantum me
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Andersson, Jenny. Climate Related Security Risks In Eastern DRC: local perspectives from NOrth and South Kivu provinces. Folke Bernadotte Academy, 2023. http://dx.doi.org/10.61880/bkks7321.

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What links can be observed between climate change, environmental degradation and insecurity in Eastern Democratic Republic of Congo (DRC)? What can be done to face the compound conflict and climate risks in a holistic and inclusive manner? Taking into consideration the importance of Eastern DRC for the global climate; adjacent to the immense Congo Basin, a vital water source for the African continent, and rich in strategic minerals, while also mired in seemingly intractable conflict for nearly thirty years, this report seeks to address some of these emerging questions.
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Suir, Glenn, and Jacob Berkowitz. Inundation depth and duration impacts on wetland soils and vegetation : state of knowledge. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/42146.

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The following synthesizes studies investigating plant and soil responses to increased inundation in order to support ecosystem restoration efforts related to the alteration of natural wetland hydrodynamics. Specific topics include hydrologic regimes, soil response to inundation, and implications for vegetation communities exposed to increased water depths. Results highlight the important interactions between water, soils, and vegetation that determine the trajectory and fate of wetland ecosystems, including the development of feedback loops related to marsh degradation and subsidence. This rep
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Ozano, Kim, Andrew Roby, and Jacob Tompkins. Learning Journey on Water Security: UK Water Offer. Institute of Development Studies (IDS), 2022. http://dx.doi.org/10.19088/k4d.2022.026.

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The overarching goals for the UK in relation to global water security are to; tackle and reverse growing water insecurity and its consequences caused by depletion and degradation of natural water sources; and address poor water management and increasing demand. To do this, the UK has a well-developed water ‘offer’ that together can help reach the goal of global water security. This note details some of that water offer: UK water leadership: The UK developed the concept of modern sanitation and water supply, with an early example being the Victorian Bazalgette London sewer; Ownership and regula
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Schutt, Timothy C., and Manoj K. Shukla. Computational Investigation on Interactions Between Some Munitions Compounds and Humic Substances. Engineer Research and Development Center (U.S.), 2021. http://dx.doi.org/10.21079/11681/39703.

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Humic acid substances (HAs) in natural soil and sediment environments effect the retention and degradation of insensitive munitions compounds and legacy high explosives (MCs): DNAN, DNi- NH4+, nMNA, NQ, NTO (neutral and anionic forms), TNT, and RDX.A humic acid model compound has been considered using molecular dynamics, thermodynamic integration, and density functional theory to characterize the munition binding ability, ionization potential, and electron affinity compared to that in the water solution. Humic acids bind most compounds and act as both a sink and source for electrons. Ionizatio
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Nagabhatla, Nidhi, Panthea Pouramin, Rupal Brahmbhatt, et al. Migration and Water: A Global Overview. United Nations University Institute for Water, Environment and Health, 2020. http://dx.doi.org/10.53328/lkzr3535.

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Global migration has been increasing since the 1990s. People are forced to leave their homes in search of safety, a better livelihood, or for more economic opportunities. Environmental drivers of migration, such as land degradation, water pollution, or changing climate, are acting as stronger phenomena with time. As millions of people are exposed to multiple water crises, daily needs related to water quality, lack of provisioning, excess or shortage of water become vital for survival as well for livelihood support. In turn, the crisis can transform into conflict and act as a trigger for migrat
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Crocker, Fiona, Mark Fuller, and Kayla Clark. Bioaugmentation for enhanced mitigation of explosives in surface soil. Engineer Research and Development Center (U.S.), 2024. http://dx.doi.org/10.21079/11681/48450.

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Residual munition constituents (MCs) generated from live-fire training exercises persist in soil and can migrate to groundwater, surface waters, and off-range locations. Techniques to mitigate this potential migration are needed. Since the MC hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) can be biodegraded, soil inoculation with RDX-degrading bacteria (i.e., bioaugmentation) was investigated as a means to reduce the migration potential of RDX. Metagenomic studies using contaminated soils have suggested that a greater diversity of bacteria are capable of RDX biodegradation. However, these bacte
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Schlossnagle, Trevor H., Janae Wallace,, and Nathan Payne. Analysis of Septic-Tank Density for Four Communities in Iron County, Utah - Newcastle, Kanarraville, Summit, and Paragonah. Utah Geological Survey, 2022. http://dx.doi.org/10.34191/ri-284.

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Iron County is a semi-rural area in southwestern Utah that is experiencing an increase in residential development. Although much of the development is on community sewer systems, many subdivisions use septic tank soil-absorption systems for wastewater disposal. Many of these septic-tank systems overlie the basin-fill deposits that compose the principal aquifer for the area. The purpose of our study is to provide tools for waterresource management and land-use planning. In this study we (1) characterize the water quality of four areas in Iron County (Newcastle, Kanarraville, Summit, and Paragon
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Kalman, Joseph, and Maryam Haddad. Wastewater-derived Ammonia for a Green Transportation Fuel. Mineta Transportation Institute, 2022. http://dx.doi.org/10.31979/mti.2021.2041.

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The energy-water nexus (i.e., availability of potable water and clean energy) is among the most important problems currently facing society. Ammonia is a carbon-free fuel that has the potential to reduce the carbon footprint in combustion related vehicles. However, ammonia production processes typically have their own carbon footprint and do not necessarily come from sustainable sources. This research examines wastewater filtration processes to harvest ammonia for transportation processes. The research team studied mock wastewater solutions and was able to achieve ammonia concentrations above
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