drinking water fluoridation Articles

  • High fluoride drinking water in Gokwe, northwest Zimbabwe

    More than 200 million people worldwide are exposed to excessive fluoride in drinking water. According to the World Health Organization, the optimal concentration range of fluoride in drinking water is 0.5 to 1.5 mg/L. Above this range, populations may contract dental fluorosis or, in severe cases, crippling skeletal fluorosis. In the Gokwe area in NW Zimbabwe, where drinking water contains up ...


    By IWA Publishing

  • Fluoride removal from drinking water by adsorption using bone char as a biosorbent

    As a biomass material, bone char was investigated for the feasibility to be used as a cost-effective biosorbent for fluoride removal from drinking water in groundwater environment. Based on the batch tests with natural tourmalin and active alumina being the reference adsorbents, bone char has demonstrated a higher fluoride adsorption capacity. This capacity was found to increase with the increase ...


    By Inderscience Publishers

  • Chemically activated cow bone for increased fluoride removal from drinking water

    Thermally activated cow bone is widely utilized for treating fluoride impacted drinking water to meet the World Health Organization guideline value of 1.5 mg/L. However, the fluoride removal capacity of bone char is low, leaving room for further improvement. This study, therefore, strives to improve the fluoride adsorption capacity of cow bone by using chemical activation in place of thermal ...


    By IWA Publishing

  • Fluoride removal by a hybrid fluoride-selective adsorbent

    High concentrations of fluoride in groundwater have become a global environmental challenge. Out of the various methods developed for effective removal of fluoride adsorption using activated alumina (AA) is popular as it has a low initial cost. AA offers excellent chemical and mechanical stability, selectivity for fluoride, favorable hydraulic properties, regenerability but offers lower ...


    By IWA Publishing

  • Arsenic from community water fluoridation: quantifying the effect

    Community water fluoridation is a WHO recommended strategy to prevent dental carries. One debated concern is that hydrofluorosilicic acid, used to fluoridate water, contains arsenic and poses a health risk. This study was undertaken to determine if fluoridation contributes to arsenic in drinking water, to estimate the amount of additional arsenic associated with fluoridation, and compare this ...


    By IWA Publishing

  • The Case Against Fluoride - Book Review

    In depth review of the book "The Case Against Fluoride" with some solid evidence that fluoride added to drinking water is potentially dangerous to our health. You’ll find claims that fluoride is a product of the fertilizer industry and considered hazardous waste, it can weaken bones and may cause bone cancer, it affects the thyroid gland and may adversely affect brain development in ...


    By The Water Exchange

  • Fluoridation: A Better Way? case study

    Ffficient, cost-effective addition of fluoride to drinking water is increasingly important as the U.S. EPA and Department of Health and Human Services contemplate additional nationwide standards for fluoride injection. A relatively new company, Integrity Municipal Services (IMS), has developed a new design for sodium fluoride saturator and feed systems and has successfully applied it at customer ...


    By Integrity Municipal Systems

  • Fluoride levels in drinking water and other surface water of an industrial area belt of Orissa State in India

    The fluorosis problem along with endemicity characterised by high degree of industries releasing fluorides into the environment was studied to quantify the fluoride levels in the different water sources. The analysis showed that out of 17 tube wells monitored, three (17.65%) showed higher fluoride levels. Among the open well monitored, 17 (58.54%) had higher fluoride content out of 41. The ...


    By Inderscience Publishers

  • Fluoride removal from drinking water in Senegal: laboratory and pilot experimentation on bone char-based treatment

    In Senegal there are four regions where fluoride concentration in drinking water exceeds the World Health Organization guide value of 1.5 mg/L. This generates permanent damages to the teeth (dental fluorosis) and to the skeleton (skeletal fluorosis). A safe, efficient, simple and low-cost effective defluoridation technique is not available yet and needs to be developed in order to prevent the ...


    By IWA Publishing

  • Adsorption of fluoride from water by surface-functionalized polyurethane foam

    Surface-functionalized polyurethane foam (SPUF) showed an exceptionally high adsorption potential for defluoridation of drinking water. Kinetic experiments of fluoride adsorption on SPUF demonstrated quick adsorption in first 60 min and then achieved maximum adsorption (7.8 mg  g−1). The adsorption isotherm was described using Bradley equation. The adsorption capacity of SPUF was significantly ...


    By IWA Publishing

  • Supervised committee machine with artificial intelligence for prediction of fluoride concentration

    The study introduces a supervised committee machine with artificial intelligence (SCMAI) method to predict fluoride in ground water of Maku, Iran. Ground water is the main source of drinking water for the area. Management of fluoride anomaly needs better prediction of fluoride concentration. However, the complex hydrogeological characteristics cause difficulties to accurately predict fluoride ...


    By IWA Publishing

  • Blue-White's Flex-Pro Peristaltic pumps in fluoride WTP applications

    An efficient and accurate method of pumping fluoride into a municipal water treatment distribution system.  Tube life averages 9500 hours in this low pressure application. Water fluoridation is the controlled addition of fluoride to a public water supply to reduce tooth decay as specified by the Center for Disease Control and Prevention. It is estimated that about two-thirds of the US ...


  • Adsorption of fluoride from aqueous solution using low cost adsorbent

    High fluoride levels beyond the recommended value of 1.5 mg/L have been detected in several groundwater wells in Northern Ghana. This occurrence has led to the capping of many high yielding wells that hitherto have been major sources of drinking water for the populace in these arid areas. Most of the fluoride removal technologies applied in the area has not been versatile in effectively removing ...


    By IWA Publishing

  • Child-education program for the reduction of health risks due to fluoride in water sources in the Chiang Mai Basin, Thailand

    Groundwater is the major source of drinking water in Lamphun Province in the Chiang Mai Basin, Thailand. However, groundwater contains high fluoride up to 16 mg F/L, which has caused dental and skeletal fluorosis. Although Thai Government installed RO membrane plants for the removal of fluoride from groundwater; and delivers RO-filtered bottled water that contains less fluoride than the Thai ...


    By IWA Publishing

  • Challenges in the implementation of a national programme on drinking water

    Provision of safe drinking water is a challenging problem requiring immediate attention. The skewed distribution of rainfall, inefficient use of water, presence of a variety of contaminants, such as fluoride, arsenic, iron and salinity, in most of the sources, and pollution by various economic activities have been the factors responsible for inadequate resources against the increasing demand due ...


    By Inderscience Publishers

  • Effect of agro-activities on drinking-water quality in Bangladesh

    Fifty-nine samples of drinking water were collected from various locations in Bangladesh to assess the impact of agricultural practices on groundwater quality. The basic groundwater quality parameters, such as pH, total dissolved solids, iron, sodium, chloride, sulfate, fluoride and arsenic were analysed. In addition, the presence of excess fertilizers was monitored by measuring levels of ...


    By Inderscience Publishers

  • Defluoridation of drinking water using metal embedded biocarbon technology

    The water that circulates in contact with fluorinated ores is particularly rich in fluoride. The beneficial and the harmful effects of fluoride consumption are well documented. The dental and skeletal fluorosis is the widespread harmful effects of a long consumption of fluoride. WHO recommended level of fluoride in drinking water is 1.5 mg/L. Different methods have been tested for defluoridation ...


    By Inderscience Publishers

  • Utility of check dams in dilution of fluoride concentration in ground water and the resultant analysis of blood serum and urine of villagers, Anantapur District, Andhra Pradesh, India

    High levels of fluoride (beyond 1.5 ppm) in ground water as source of drinking water are common in many parts of Andhra Pradesh, India, causing fluorosis. The study carried out in endemic Nalgonda District, Andhra Pradesh, has indicated that the fluoride-rich ground water present in the wells located down stream and close to the surface water bodies is getting diluted by the low-fluoride surface ...


    By Springer

  • Technological approaches to providing safe drinking water for rural and remote areas

    Provision of safe drinking water is one of the key drivers in our technological pursuits. A number of habitations are suffering from a variety of water quality problems such as excess salinity, iron, arsenic, fluoride, nitrate and microbial contamination. Simplicity of operation, less dependence on external sources of power supply, minimisation of wastewater, etc., are some of the ground rules to ...


    By Inderscience Publishers

  • Chemical analysis of drinking water of villages of Sanganer Tehsil, Jaipur District

    Abstract Due to pressure of human activity, urbanization and industrialization, the groundwater sources are degraded gradually; therefore pure, safe, healthy and odorless drinking water is a matter of deep concern. There are many pollutants in groundwater due to seepage viz. organic and inorganic pollutants, heavy metals, pesticides, fluorides etc. In Rajasthan state, all 32 districts are ...

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