Готові списки джерел за темами / Defluoridation Efficiency

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Добірка наукової літератури з теми "Defluoridation Efficiency"

Автор: Grafiati

Опубліковано: 3 червня 2025

Оновлено: 31 липня 2025

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Статті в журналах з теми "Defluoridation Efficiency"

G., Karthikeyan, Shunmuga Sundarraj A., Meenakshi S., and P. Elango K. "Adsorption dynamics and the effect of temperature of fluoride at alumina-solution interface." Journal of Indian Chemical Society Vol. 81, Jun 2004 (2004): 461–66. https://doi.org/10.5281/zenodo.5833384.

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Department of Chemistry, Gandhigram Rural Institute-Deemed University, Gandhigram-624 302, India E-mail : drg_karthikeyan@rediffmail.com       Fax : 91-451-2454466 Manuscript received 24 April 2003. revised 14 October 2003, accepted 14 january 2004 The defluoridation efficiency of the commercially available grades of activated alumina were determined. The various factors which influence the defluoridation efficiency of the material were studied. There was a marked dependence of pH on the defluoridating capacity. The adsorption of fluoride ions on

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Jothimani, Palanisamy, Sai Akshitha Singara Velu, and Sabesh Vagul G. "Defluoridation of Groundwater Using Low-cost Adsorbents." International Journal of Environment and Climate Change 14, no. 11 (2024): 569–83. http://dx.doi.org/10.9734/ijecc/2024/v14i114569.

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Excessive fluoride in groundwater poses significant health risks to millions of people worldwide, necessitating effective and accessible defluoridation methods. This study investigates the use of column filtration for removing fluoride from groundwater. The study employs a systematic approach to evaluate the performance of different adsorbent materials in a fixed-bed column setup. Various materials were tested as adsorbents in column, including Brick powder, Neem leaf powder, Lime, Sawdust, and Vetiver. The research examines the effects of key operational parameters such as bed depth, flow rat

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Gathere, P. W., Sudarno, and A. Sarminingsih. "Increasing The Efficiency of Bone Charcoal in Water Defluoridation Using Eggshell Powder and Dry Banana Peel Medium (DBPM)." IOP Conference Series: Earth and Environmental Science 1098, no. 1 (2022): 012026. http://dx.doi.org/10.1088/1755-1315/1098/1/012026.

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Abstract The world health organization (WHO) has set an upper limit of 1.5 mg/l fluoride concentration in water meant for human consumption. Ground water has high fluoride level which exceeds the value recommended by the WHO. Defluoridation is the only viable way of dealing with the issue of high fluoride levels in water. The most common defluoridation method is the use of bone charcoal. This research shows how adding dry banana peel medium (DBPM) and egg shell powder to bone charcoal increases its defluoridation capacity as well as the water defluoridation rate. Raw water samples were collect

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Li, Lian Xiang, Di Xu, Xian Jun Cheng, Rui Gang Sun, and Xiao Qin Li. "Effect of pH on Four Defluoridation Adsorbents under Natural High Fluoride Groundwater." Applied Mechanics and Materials 643 (September 2014): 335–41. http://dx.doi.org/10.4028/www.scientific.net/amm.643.335.

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Appropriate drinking water defluoridation technology is urgently needed in china, which has a wide fluoride-rich area. The adsorption defluoridation method in the industrial high fluoride wastewater treatment is generally considered to be efficient and economic. However, the practical application of the method is not ideal in obtaining drinking water defluoridation. Four representative adsorbents activated alumina, activated zeolite, hydroxyapatite and hydrous zirconium oxide have been tested in terms of defluoridation efficiency under natural high fluoride groundwater and compared to clarify

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Arora, Aastha, and Rajendra Mathur. "Treatment of Fluoride Contaminated Water Using Coconut Waste as Natural Adsorbent." Ecology, Environment and Conservation 28, no. 04 (2022): 1841–43. http://dx.doi.org/10.53550/eec.2022.v28i04.028.

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The removal of fluoride from groundwater has been researched using a variety of treatment approaches. The adsorption process for defluoridation is widely used in poor nations since it is a technologically and economically viable method that is both environmentally beneficial and simple to implement. As a result, it is necessary to monitor defluoridation using a low-cost and simple technology. This research examines defluoridation using a natural absorbent, coconut husk, which is both inexpensive and effective. The appropriate dose of adsorbent was also determined for improved fluoride removal

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Lorivi, Moirana Ruth, Joseph Mkunda, Revocatus Machunda, Marchus Paradelo, and Kelvin Mtei. "Hydroxyapatite-activated seaweed biochar for enhanced remediation of fluoride contaminated soil at various pH ranges." Environmental Advances 11, no. 10039 (2022): 1–9. https://doi.org/10.1016/j.envadv.2022.100329.

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This study investigated the defluoridation efficiency of hydroxyapatite-activated seaweed (Eucheuma Cottonii) biochar (HSB) at various soil pH ranges (3–11) while monitoring the impact of contact time (30 min - 2.5 h), adsorbent dosage (0.1–0.5 g) as well as the initial fluoride concentration and compare its performance to its respective seaweed biochar (SB). Activation of SB with the hydroxyapatite lead to a shift in its point-zero-charge (pHPZC) from 6 to 7.4 broadening its defluoridation pH range from a solitary 5 to amid 3 through 11. The fluoride adsorption mechanism

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Premalatha, K., B. Padma, and V. Shashikala. "An Efficient Fluoride Ions Removal from Groundwater by Carbon Alumina Composites Materials." Asian Journal of Chemistry 34, no. 10 (2022): 2697–702. http://dx.doi.org/10.14233/ajchem.2022.23953.

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Due to toxicity, persistent nature, bioaccumulation of fluoride ions and its alarming rise in different parts of India, it has become of utmost importance for the synthesis of an efficient material to remove fluoride ions from groundwater. This article reports the synthesis of highly efficient defluoridation carbon and alumina composite materials (CACM). A series of six samples were synthesized by deposition precipitation method and characterized using various techniques like XRD, BET surface area, pore size distribution, FT-IR, CO2 chemisorption and CO2 temperature programmed desorption (TPD)

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Singh, Neha, Sonu Kumari, and Suphiya Khan. "Improved fluoride removal efficiency using novel defluoridation pencil." Materials Today Communications 28 (September 2021): 102521. http://dx.doi.org/10.1016/j.mtcomm.2021.102521.

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Oladoja, N. A., G. A. Bello, S. V. Obisesan, et al. "Insight into the defluoridation efficiency of lateritic soil." Environmental Progress & Sustainable Energy 38, no. 4 (2018): 13107. http://dx.doi.org/10.1002/ep.13107.

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Vustelamuri, Padmavathi and Thatavarthi Padmini*. "DEFLUORIDATION OF DRINKING WATER BY VARIOUS BIODEGRADABLE ADSORBENT –A REVIEW." Indo American Journal of Pharmaceutical Sciences 04, no. 08 (2017): 2284–90. https://doi.org/10.5281/zenodo.842832.

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Most of the developing countries like India depend on the groundwater as source of drinking water that may be contaminated by natural sources or by industrial effluents. One such contaminant is fluoride that possesses adverse effects on human health. When people consume water having fluoride (F– ) concentration >1–1.5 mg/L for a long period of time, various ailments that are collectively referred to as fluorosis occur. Various defluoridation technologies are being used to remove fluoride from water but still the problem has not been rooted out. This paper describes the review on the utiliza

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Більше джерел

Частини книг з теми "Defluoridation Efficiency"

Nyairo, Wilfrida Nyanduko, Emily Ng'eno, Victor Odhiambo Shikuku, and Patrick Ssebugere. "Application of Metal-Organic Framework Adsorbents for Water Defluoridation." In Emerging Applications and Implementations of Metal-Organic Frameworks. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-4760-1.ch005.

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Defluoridation of drinking water is a subject of great concern due to the side effects of exposure to fluorine such as fluorosis, damage to vital organs such as the brain, liver, and kidney, among others. Fluorine finds itself in water resources both by geological and anthropogenic processes. Adsorption still remains the popular method of defluoridation and water treatment in general due to its inherent advantages such as simplicity and low-cost. This chapter discusses at length the up-to-date data on the preparation and adsorption capacities of metal-organic framework (MOF) materials as emerg

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Andala, Dickson Mubera, Erick Mobegi, Mildred Nawiri, and Geoffrey Otieno. "Fabrication of Metal Oxide-Biopolymer Nanocomposite for Water Defluoridation." In Research Anthology on Synthesis, Characterization, and Applications of Nanomaterials. IGI Global, 2021. http://dx.doi.org/10.4018/978-1-7998-8591-7.ch053.

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Fluoride contamination in groundwater affects about 150 million people worldwide. In this study, the authors focused on synthesizing biopolymer metal oxide nanocomposite for fluoride removal. Nanocomposite material was done using SEM. As(V), Al, Ti, Zr, and Fe water samples were analysed by ICP-MS (inductively coupled plasma-mass spectrometry). Fluoride level was determined using the standard method – Ion-Selective Electrode method. Preliminary results indicate arsenic (V) removal was below the 10 ppb and fluoride less than 1.5 ppm as prescribed by WHO. The removal efficiency was after 60-70 m

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Andala, Dickson Mubera, Erick Mobegi, Mildred Nawiri, and Geoffrey Otieno. "Fabrication of Metal Oxide-Biopolymer Nanocomposite for Water Defluoridation." In Advances in Environmental Engineering and Green Technologies. IGI Global, 2020. http://dx.doi.org/10.4018/978-1-7998-1871-7.ch013.

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Ahmed, Moufti, Taoufik Mohamed, Amri Afaf, Mabrouki Jamal, Mountadar Mohammed, and Garmes Hocine. "Defluoridation of Contaminated Mine Water by Adsorption on the Fly Ash in the Static and Dynamic Reactor: A Case Study in Morocco." In Sorption - New Perspectives and Applications. IntechOpen, 2025. https://doi.org/10.5772/intechopen.1003989.

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In this study, we are interested in the elimination of fluoride ions in a batch and dynamic reactor by adsorption on fly ash from the Jorf-Lasfar thermal power plant in El Jadida, Morocco. Indeed, the results obtained showed that the fly ash made it possible to have treated water meeting international standards for fluorides and certain metals such as Pb and Fe; they will undergo a combined treatment. The elimination efficiency increases with the mass of the adsorbent and the stirring speed, with the pH values in a basic medium (7 < pH < 9.5), and this is for a treatment at room temperat

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Тези доповідей конференцій з теми "Defluoridation Efficiency"

Nair, Soorya M., Anjali P. Sasidharan, Sneha C. Shaju, Praseeja K. C., Surya N. R., and Swathi K. S. "Efficiency of vetiver filter in defluoridation of water." In INTERNATIONAL CONFERENCE ON ENERGY AND ENVIRONMENT (ICEE 2021). AIP Publishing, 2021. http://dx.doi.org/10.1063/5.0066374.

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