رسالة جامعية
Microbiological effects of copper and other abiotic factors in drinking water and touch surface environments ; Kuparin ja muiden ympäristötekijöiden mikrobiologiset vaikutukset juomavesi- ja kosketuspintaympäristöissä
| العنوان: | Microbiological effects of copper and other abiotic factors in drinking water and touch surface environments ; Kuparin ja muiden ympäristötekijöiden mikrobiologiset vaikutukset juomavesi- ja kosketuspintaympäristöissä |
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| المؤلفون: | Inkinen, Jenni |
| المساهمون: | Keinänen-Toivola, Minna, Dr., Satakunta University of Applied Sciences, Finland, Ahonen, Merja, Dr., Satakunta University of Applied Sciences, Finland, Pitkänen, Tarja, Doc., National Institute for Health and Welfare, Finland, Insinööritieteiden korkeakoulu, School of Engineering, Rakennustekniikan laitos, Department of Civil Engineering, Salonen, Heidi, Prof., Aalto University, Department of Civil Engineering, Finland, Nordström, Katrina, Prof., Aalto University, Department of Bioproducts and Biosystems, Finland, Indoor Environment Technology, Aalto-yliopisto, Aalto University |
| بيانات النشر: | Aalto University Aalto-yliopisto |
| سنة النشر: | 2018 |
| المجموعة: | Aalto University Publication Archive (Aaltodoc) / Aalto-yliopiston julkaisuarkistoa |
| مصطلحات موضوعية: | Biotechnology, Civil engineering, bacterial communities, drinking water, touch surface, copper, NGS, bakteeriyhteisöt, juomavesi, kosketuspinnat, kupari, syväsekvensointi |
| الوصف: | Humans spend most of their time indoors. The built environment with its systems (e.g. water system) should be designed and operated in a way that it is microbiologically safe in all stages of operation. Copper is a widely used material within indoor environments and may aid to maintain low bacterial counts in drinking water and touch surface environments depending on the surroun- ding circumstances e.g. water/air interface, biofilm formation or soiling. Basic knowledge of the composition of drinking water bacteria has been earlier limited only to a small cultivable fraction of bacteria. Next-generation sequencing (NGS) technologies help to reveal entire microbial communities and to date these approaches are also extended to cover studies on drinking water systems. This thesis focuses on the unique microbiological niches of drinking water and touch surface indoor environments utilizing up-to-date technologies and real-life environments with emphasis on environmental factors that shape such microbiota. The role of copper in both water and air interfaces is of special interest. NGS approach was utilised to evaluate the effect of copper pipelines on biofilm or water micro-biota under real-life circumstances (full-scale water system) and under controlled conditions (pilot-scale system). Copper was compared to another commonly used pipeline material, cross-linked polyethylene (PEX). Environmental conditions i.e. the effect of cold and hot water systems with different flow regimes and temperatures (full-scale), and disinfection and magnetic water treat- ment (pilot-scale) were studied by NGS or traditional analysis methods in which stagnated water represented the worst-case scenario for water quality. The microbiological effects of copper in touch surface environment were studied at different real-life facilities under varying environmental circumstances (e.g. usage profiles, cleaning). This thesis successfully revealed the active and dormant bacterial inhabitants of the drinking water system utilizing 16S ribosomal ... |
| نوع الوثيقة: | doctoral or postdoctoral thesis |
| وصف الملف: | application/pdf |
| اللغة: | English |
| ردمك: | 978-952-60-8092-5 978-952-60-8091-8 952-60-8092-0 952-60-8091-2 |
| العلاقة: | Aalto University publication series DOCTORAL DISSERTATIONS; 186/2018; [Publication 1]: Inkinen, J., Kaunisto, T., Pursiainen, A., Miettinen, I.T., Kusnetsov, J., Riihinen, K., Keinänen-Toivola, M. M. Drinking water quality and formation of biofilms in an office building during its first year of operation, a full scale study. Water Research, 2014, 49, 83–91. DOI:10.1016/j.watres.2013.11.013; [Publication 2]: Inkinen, J., Jayaprakash, B., Santo Domingo, J.W., Keinänen-Toivola, M.M., Ryu, H., Pitkänen, T. Diversity of ribosomal 16S DNA- and RNAbased bacterial community in an office building drinking water system. Journal of Applied Microbiology, 2016, 120, 1723–1738. DOI:10.1111/jam.13144; [Publication 3]: Inkinen, J., Ahonen, M., Mäkinen, R., Pursiainen, A., Pitkänen, T., Jayaprakash, B., Jorge W. Santo Domingo, J.W., Salonen, H., Elk, M., Keinänen-Toivola, M.M. Bacterial community changes in copper andPEX drinking water pipeline biofilms under extra disinfection and magnetic water treatment. Journal of Applied Microbiology, 2018, 124, 611–624. DOI:10.1111/jam.13662; [Publication 4]: Inkinen, J., Mäkinen, R, Keinänen-Toivola, M.M., Nordström, K., Ahonen, M. Copper as an antibacterial material in different facilities. Letters in Applied Microbiology, 2017, 64, 19–26. DOI:10.1111/lam.12680; 1799-4942 (electronic); 1799-4934 (printed); 1799-4934 (ISSN-L); https://aaltodoc.aalto.fi/handle/123456789/34090Test; URN:ISBN:978-952-60-8092-5 |
| الإتاحة: | https://doi.org/10.1016/j.watres.2013.11.013Test https://doi.org/10.1111/jam.13144Test https://doi.org/10.1111/jam.13662Test https://doi.org/10.1111/lam.12680Test https://aaltodoc.aalto.fi/handle/123456789/34090Test |
| رقم الانضمام: | edsbas.EE0029E3 |
| قاعدة البيانات: | BASE |
| ردمك: | 9789526080925 9789526080918 9526080920 9526080912 |
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