The Nalgonda method involves adding aluminum salts (like aluminum sulphate or alum), lime, and bleaching powder to fluoride-contaminated water. This causes the precipitation of fluoride as calcium fluoride and aluminum hydroxyfluoride, which can then be removed by sedimentation and filtration.
Nalgonda method was developed by Indian Scientist to remove which chemical species from water?
Asked in WBCS Main Paper 4 2021 · Topic: Pollution (Water Pollution: Sources, common pollutants, water quality indicators (BOD, COD, DO), effects, control measures.)
More Environment and Ecology questions
- Which of the following is used as a coagulant for removal of phosphates in water?
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