Treatment of silicate Ion with Bacillus subtilis bacteria in demineralization-water/steam cycles in power plants
Year 2025,
Volume: 7 Issue: 2, 220 - 227, 31.05.2025
Deniz Bozkurt
,
Aslıhan Dalmaz
,
Sefa Durmuş
Abstract
Inorganic silica and various mineral deposits are particularly important in the process waters of power plants. The presence of these inorganic species, especially silica, poses many challenges for process water applications in power plants. If silica in process waters is not controlled, it forms hard, difficult, and dangerous deposits for process water. Silica formation and accumulation cannot be prevented by many conventional methods and scale inhibitors. In this study, Bacillus subtilis bacteria was used to minimize silica formation in the process water of power plants. For this purpose, many different parameters were optimized in the system steps. The results obtained are promising for the use of silica removal in process water applications. In addition, the use of Bacillus subtilis bacteria for the treatment of process water will provide significant economic benefits. Therefore, this study will make an important contribution to the literature and will be very advantageous in terms of cost for various industrial organizations that face silica problems in process waters.
Ethical Statement
The authors declare that they have no conflict of interest.
References
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- C. Thongchom, T. Laemthong, P. Sangkeaw, N. Yamasamit, S. Keawsawasvong, Evaluation of encapsulated Bacillus subtilis bio-mortars for use under acidic conditions, Sci Rep, 14, 2024, 25947.
- Powertech, Feed water, boiler water and steam quality for power plants/industrial plants. VGB PowerTech Service GmbH Essen, Germany, 2011.
Treatment of Silicate Ion with Bacillus subtilis Bacteria in Demineralization-Water/Steam Cycles in Power Plants
Year 2025,
Volume: 7 Issue: 2, 220 - 227, 31.05.2025
Deniz Bozkurt
,
Aslıhan Dalmaz
,
Sefa Durmuş
Abstract
Inorganic silica and various mineral deposits are particularly important in the process waters of power plants. The presence of these inorganic species, especially silica, poses many challenges for process water applications in power plants. If silica in process waters is not controlled, it forms hard, difficult, and dangerous deposits for process water. Silica formation and accumulation cannot be prevented by many conventional methods and scale inhibitors. In this study, Bacillus subtilis bacteria was used to minimize silica formation in the process water of power plants. For this purpose, many different parameters were optimized in the system steps. The results obtained are promising for the use of silica removal in process water applications. In addition, the use of Bacillus subtilis bacteria for the treatment of process water will provide significant economic benefits. Therefore, this study will make an important contribution to the literature and will be very advantageous in terms of cost for various industrial organizations that face silica problems in process waters.
References
- S.B. Dalgaard, M.O. Sanford, Review of the hydrazine/oxygen reaction kinetics, Corrosion/81, April 6–10, Toronto, 1981, Canada, P15.
- A.P. Akol'zin, V.G. Klochkova, A.E. Balabanov, Protection against corrosion of boiler steel with carbohydrazide, Therm Eng+, 35, 1988, 462-463.
- V.V. Slesarenko, E.V. Kozlov, Application of combined water treatment systems at thermal power plants of the far east region, Thermal engineering, 53, 2006, 403-406.
- K. Demadis, Scale formation and removal, Power, 148, 2004, 19-19.
- K.D. Demadis, E. Mavredaki, A. Stathoulopoulou, E. Neofotistou, C. Mantzaridis, Industrial water systems: problems, challenges and solutions for the process industries, Desalination, 213, 2007, 38-46.
- A.S. Abd Askar, Pretreatment of Water for Industrial Boilers Purposes, Alexandria, Texas Journal of Multidisciplinary Studies, 24, 2023, 120-133.
- Q. Cao, T. Pojtanabuntoeng, M. Esmaily, S. Thomas, M. Brameld, A. Amer, N. Birbilis, A review of corrosion under insulation: a critical issue in the oil and gas industry, Metals, 12, 2022, 561.
- A.N. Samodurov, S.E. Lysenko, S.L. Gromov, A.A. Panteleev, E.B. Fedosseva, The use of reverse osmosis technology for water treatment in power engineering, Thermal engineering, 53, 2006, 439-443.
- L. Jahangiri, M.A. Esteban, Administration of probiotics in the water in finfish aquaculture systems: a review, Fishes, 3, 2018, 30–33.
- C.I.M. Martins, E.H. Eding, M.C.J. Verdegem, L.T.N. Heinsbroek, O. Schneider, J.-P. Blancheton, E.R. d’Orbcastel, J.A.J. Verreth, New developments in recirculating aquaculture systems in Europe: a perspective on environmental sustainability, Aquac. Eng, 43, 2010, 83–93.
- R. Crab, Y. Avnimelech, T. Defoirdt, P. Bossier, W. Verstraete, Nitrogen removal techniques in aquaculture for a sustainable production, Aquaculture, 270, 2007, 1–14.
- J. van Rijn, Waste treatment in recirculating aquaculture systems, Aquac Eng, 53, 2013, 49–56.
- C. Maucieri, C. Nicoletto, R. Junge, Z. Schmautz, P. Sambo, M. Borin, Hydroponic systems and water management in aquaponics: A review, Ital J Agron, 13, 2018, 1-11.
- T. Devaraja, S. Banerjee, F. Yusoff, M. Shariff, H. Khatoon, A holistic approach for selection of Bacillus spp. as a bioremediator for shrimp postlarvae culture, Turkish Journal of Biology, 37, 2013, 92-100.
- F.K.A. Kuebutornye, E.D. Abarike, Y. Lu, A review on the application of Bacillus as probiotics in aquaculture, Fish Shellfish Immunol, 87, 2019, 820–828.
- M. Soltani, K. Ghosh, S.H. Hoseinifar, V. Kumar, A.J. Lymbery, S. Roy, E. Ringø, Genus Bacillus, promising probiotics in aquaculture: aquatic animal origin, bio-active components, bioremediation and efficacy in fish and shellfish, Reviews in Fisheries Science & Aquaculture, 27, 2019, 331-379.
- B.R. Manno, I.K. Abukhalaf, J.E. Manno, A simple spectrophotometric assay for the measurement of soluble silica in water, Journal of Analytical Toxicology, 21, 1997, 503-505.
- S. Faza, J. Kwok, O. Salah, Application of high-strength and corrosion-resistant ASTM A1035 steel reinforcing bar in concrete high-rise construction, Des Sustain, 211, 2007.
- A.W. Danial, F.M. Dardir, Copper biosorption by Bacillus pumilus OQ931870 and Bacillus subtilis OQ931871 isolated from Wadi Nakheil, Red Sea, Egypt, Microb Cell Fact, 22, 2023, 152.
- C. Thongchom, T. Laemthong, P. Sangkeaw, N. Yamasamit, S. Keawsawasvong, Evaluation of encapsulated Bacillus subtilis bio-mortars for use under acidic conditions, Sci Rep, 14, 2024, 25947.
- Powertech, Feed water, boiler water and steam quality for power plants/industrial plants. VGB PowerTech Service GmbH Essen, Germany, 2011.