The CSIR-National Institute for Interdisciplinary Science and Technology (NIIST) here has come up with a hybrid process for treating well water contaminated with perchlorate. Perchlorate contamination poses health risks as it can affect the thyroid gland leading to hypothyroidism and associated physiological disorders.
The NIIST has established a demonstration plant at Keezhmad panchayat in Aluva, Ernakulam district, which is capable of treating contaminated well water and generating 2,000 litres of potable water a day. The treatment process was developed by a team led by Krishnakumar B., Senior Principal Scientist with the NIIST's Environmental Technology Division.
A strong oxidising agent, perchlorate salts find wide use in many industries, including the strategic sector and space research and development units. The NIIST developed the hybrid process (bio-physical) as conventional treatment methods scarcely work. The project was funded by the Jal Jeevan Mission, Ministry of Jal Shakti.
