Inventors: Swarup Debbarma (1082) Arup Saha (1433) Biswajit Ruj (279)
Abstract:
Management of fluoride-rich sludge generated by different fluoride treatment plants is a foremost issue of great concern in India and several developing countries. Due to narrow options for safe disposal of highly concentrated fluoride rejects with a high volume, many fluoride removal plants generally dump the rejects into the open environment which leaves potential risk of recontamination of underground aquifers through natural percolation process. In this invention, fluoride-rich activated alumina (Al2O3) sludge has been used as one of the raw materials for concrete blocks/cubes formation. After an exhaustive fluoride removal study, activated alumina based sludge contained 0.84 mg of fluoride per gram of
Application Number: 201913053662
Filing Date: 24/12/2019
Other Inventors: Sankha Chakrabortty