Reports suggest that the invention supported around 50,000 people as a total of 24 water plants were installed during recent floods in Karnataka, Maharashtra, Kerala, Bihar, Odisha and West Bengal to provide clean and safe drinking water.
Indian Institute of Technology, Kharagpur (IIT-KGP)housed Centre for Technological Excellence in Water Purification (CTEWP) developed an efficient, low-cost, nano-filtration-based technology to ensure access to safe and clean drinking water free of heavy metals. On March 11, the Department of Science and Technology (DST) said that the prototype of the highly compact vertical modular nano-filtration membrane system, designed for the removal of heavy metals from the groundwater, was developed by the Membrane Separations Laboratory, Council of Scientific and Industrial Research-Indian Institute of Chemical Technology (CSIR-IICT), with support from the DST Water Technology Initiative (WTI).
According to the official details released by CTEWP, the system has a capacity of 100-300 litre per hour(L/h) and it is based on a membrane technically called the hydrophilic polyamide membrane that helps in removing heavy metals such as iron from the groundwater. It also has pumps that force water first through a pre-filter assembly to remove suspended solids, colour and odour, and then spiral wound membrane modules that separate heavy metals. It gives a purified permeate of reasonable total dissolved solids (TDS) devoid of contaminants such as iron, arsenic or excess hardness. Ultraviolet light is provided at the end to disinfect any pathogens that may be present in the tank or pipelines.
Reports suggest that the invention supported around 50,000 people as a total of 24 water plants were installed during recent floods in Karnataka, Maharashtra, Kerala, Bihar, Odisha and West Bengal to provide clean and safe drinking water.
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