COST EFFECTIVE NATURAL ADSORBENTS FOR THE REMOVAL OF FLUORIDE: A GREEN APPROACH

Samiksha Tamrakar, Rashmi Verma, Santosh Kumar Sar, Chanda Verma
2019 RASAYAN Journal of Chemistry  
Access to safe drinking water is not only fundamental to human development and well being but is also recognized as a human right. The provision of safe potable water is considered critical and pivotal to the achievements of overall development, including adequate nutrition, education, gender equality and especially the eradication of poverty in developing countries. Fluoride is one of the water quality parameters of concern, the excess (beyond 1.5 mg/L,the World Health Organization (WHO)
more » ... ine value of which contaminates groundwater resources in many parts of the world, and renders it not potable for human consumption, due to the related adverse health effects. Therefore knowledge of its removal, using the best technique with optimum efficiency is needed. Taking the severity of the problem into consideration, the present paper aims to provide a retrospective approach to the use of effective low -cost adsorbents for the removal of fluoride from water. The defluoridation capacity of certain lowcost natural adsorbents like Citron peel, Karanj, Parijaat, Neem, Rice husk, and Tulsi was added in the list and discussed in detail. The effect of contact time, pH and adsorbent dose were investigated. The adsorption isotherm and kinetics were studied conducting Batch and Column experiment.
doi:10.31788/rjc.2019.1225106 fatcat:d2h3xdigcrawtjpausa575kmwm