Fluoride is one of the very few chemicals that have shown to cause significant effects in people through drinking water. All adsorbents used are inexpensive and nontoxic materials, available easily in nature and locally at village/rural level. Defluoridation of groundwater using aluminum-coated bauxite: Optimization of synthesis process conditions and equilibrium study. The Fe3+-modified bentonite exhibited ≈100% F– removal over the pH range 2–10 decreasing at pH > 10, while the unprocessed raw bentonite clay showed release of F− over the same pH range. The adsorption data fitted well to Langmuir adsorption model indicating a monolayer coverage of the adsorbent. Epub 2016 Jun 18. Areas of high rainfall, such as humid tropical regions, are expected to have low fluoride concentration in groundwater because soluble ions such as fluoride are leached out and diluted. Defluoridation methods and required materials 5. Here, we will focus on two approaches which will help the civil engineering students to prepare the seminar report. Various types of Fluoride exist. The influence of climate on fluoride concentration in groundwater is largely attributed to the effect that rainfall has on recharge rate and groundwater flow. 2016 Oct 1;181:108-117. doi: 10.1016/j.jenvman.2016.06.011. GACB performed better than raw bauxite (RB) and was able to reduce fluoride concentration in groundwater from 5 ± 0.2 mg/L to ≤ 1.5 mg/L, World Health Organization (WHO) guideline. Defluoridation may be undertaken by individuals of their drinking water, whether occurring naturally or where their municipality has put sodium fluoride into the drinking supply. Defluoridation in the presence of high calcium levels in potable groundwater is paramount, as the consumption of groundwater enriched with fluoride, and calcium has been implicated in causing chronic kidney disease of unknown etiology (CKDu) in Sri Lanka. The bauxite exhibited defluoridation efficiency of up to 96.1% for groundwater with a fluoride concentration of 6.17mg/L at a bauxite dosage of 0.120kg/L. (2019) Community-Based Defluoridation of Groundwater by Electrocoagulation Followed by Activated Alumina Adsorption. Here we have uploaded various approaches of defluoridation of groundwater. The best seminar topics are topics that lend themselves to being presented in a seminar-style of presentation. • Defluoridation is defined as, ‘the downward adjustment of level of fluoride in drinking water to the optimal level’ “the one that can arrest the prevalence of dental caries from causing a insignificant amount of fluorosis” DEFINITION 4. Defluoridation of Groundwater Using Termite Mound Defluoridation of Groundwater Using Termite Mound Fufa, Fekadu; Alemayehu, Esayas; Lennartz, Bernd 2013-04-17 00:00:00 Water Air Soil Pollut (2013) 224:1552 DOI 10.1007/s11270-013-1552-y Fekadu Fufa & Esayas Alemayehu & Bernd Lennartz Received: 12 January 2013 /Accepted: 28 March 2013 /Published online: 17 April 2013 … Get Latest Information on Recent Seminar Topics via Email. We use cookies to improve your website experience. 1. Worldwide, fluoride is one of the most abundant anions present in groundwater. Haldar A., Pal B., Gupta A. The results show that the filtration with corn cobs powder reduces the fluoride content for the samples. Defluoridation may be underaken for naturally occuring fluoride in ground water by municipalities. A series of batch adsorption experiments were carried out to evaluate parameters that influence the adsorption process. Analytical Methods 2019 , 11 (35) , 4440-4449. Loading of Fe3+ on bentonite was achieved by contacting the powdered clay with 80 ppm Fe3+ solution for 15 min at S/L ratio of 2 g/100 ml. Defluoridation of groundwater using mechanochemically-activated clay soil. In this modern era, it seems like everything is constantly changing and getting better around us. The adsorbents used in this investigation are amla powder, coconut shell powder, neem powder, and turmeric powder. Ground waters are much more vulnerable to fluoride enrichment than surface waters because of the greater impacts of water-rock reactions in aquifers. Registered in England & Wales No. Register to receive personalised research and resources by email, Environmental Remediation and Water Pollution Chemistry Research Group, Department of Ecology and Resources Management, University of Venda, Private bag X5050, Thohoyandou, 0950 Limpopo, South Africa, Tel. Defluoridation by Natural Method in the Groundwater of Tiruchengode Taluk, Namakkal District - written by A. Arun Kumar, S. M. Mazhar Nazeeb Khan published on 2018/04/24 download full article with reference data and citations J Environ Manage. a Department of Ecology and Resource Management, University of Venda, Thohoyandou, South Africa. Fluoride is more present in groundwater than surface water mainly due to the leaching of minerals. Different operating conditions were examined and included the use of baffles, varying flow rates, … Researching trending topics i... विद्यार्थियों के लिए प्रेजेंटेशन का महत्व प्रेजेंटेशन (presentation) देना शैक्षणिक पाठ्यक्रम का एक महत्वपूर्ण व्यावहारिक पाठ्यक्रम है, ... Coronavirus Pandemic and Environment The global lockdown caused by the COVID-19 (coronavirus) pandemic has resulted in numerous impacts o... Seminar Topics, Presentation and Reports Download | 2020, Latest Seminar Topics | Reports | Journals | Presentations | 2020, Low Cost Defluoridation of Ground Water Seminar Report, Top 10 Latest Seminar Topics for Computer Science To Select in 2020, 40 Best Seminar Topics on IoT | IEEE Journals [Download PDF], 100+ Seminar Topics for Youth, Teenagers, College Students, 100 PowerPoint Presentation Topics in Hindi (Download PPT), Impact of COVID-19 Pandemic on the Environment: PPT | PDF Report, Seminar Topics for CSE Computer Science Engineering, ⚙️ Seminar Topics for Mechanical Engineering ME, Seminar Topics for ECE Electronics and Communication, ⚡️ Seminar Topics for Electrical Engineering EEE, ♂️ Seminar Topics for Civil Engineering, Seminar Topics for Production Engineering, Chemistry Investigatory Projects Topics, ⚗️ Inorganic Chemistry Presentation Topics, Environment Related Presentation Topics, Chemistry: Interesting Presentation Topics, Informative and Persuasive Speech Topics on Animals, Informative and Persuasive Speech Topics on Automotives, Ideas to Choose Right Informative Speech, Informative Speech Topics For College Students, Informative Speech Topics on Science and Technology. 3099067 * Corresponding author. Fluoride is more present in groundwater than surface water mainly due to the leaching of minerals. DEFLUORIDATION; Defluoridation may be underaken for naturally occuring fluoride in ground water by municipalities. 5 Howick Place | London | SW1P 1WG. Fe3+ bentonite exhibited ≈100% F− removal as opposed to unprocessed bentonite <5% at initial concentration of 10 ppm F−. The second paper for seminar report discussed the experimental investigation to develop a cheaper and safer method of defluoridation. Drinking groundwater sample of high fluoride concentration (6.17 mg/L) was collected from a borehole in Machinga district of Southern Malawi where dental fluorosis is prevalent due to the high fluoride. The first paper for seminar report discussed the process of Defluoridation of groundwater using corn cobs powder as a natural adsorbent using a fabricated filter. Defluoridation of groundwater using mechanochemically-activated clay soil Masindi E. Denga; Masindi E. Denga * a Department of Ecology and Resource Management, University of Venda, Thohoyandou, South Africa * Corresponding author. Defluoridation may be undertaken by individuals of their drinking water, whether occurring naturally or where their municipality has put sodium fluoride into the drinking supply. Studies reveal that in some of the boreholes, F− concentration may be way beyond the recommended limits for drinking water. The authors wish to express their gratitude to University of Venda Research and Innovation Directorate, Department of Ecology and Resources Management, ESKOM-TESP for the support and funding of this study. The adsorption process was also observed to be favorable at room temperature.
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