Water of high quality is essential for human existence and agricultural, industrial, domestic and commercial use and all these activities are also responsible for polluting the water. This is also helpful for the betterment of rural life. Majority of the industries are water based and a considerable volume of wastewater originated from these is generally discharged into water sources either untreated or inadequately treated resulting in water pollution & nbsp; A study conducted by the Centre for Science and Environment, New Delhi, India, has suggested that over 70% of available water in India is polluted (C.S.E. Survey,1982).The contamination of water due to toxic heavy metals through the discharge of industrial wastewater is a global environmental problem. The heavy metals reach the water bodies through many industrial activities. From the heavy metals chromium is such metal which is to be found in aqueous system as both ionic forms i.e. Trivalent and Hexavalent chromium. Recently much importance has been given on removal techniques and developments of new process for heavy removal from waste water. There are large number of industries which discharge chromium containing waste, namely tanning, electroplating, textile cement and asbestos, refractories, cooling towers of thermal power stations and many other industries. Adsorption has been advocated as most promising among the currently known methods for waste water treatment, especially for removal of heavy metals. The adsorption process can be carried out using abundantly available low cost adsorbent. In the present study Delonix regia pods (Gulmohar) are & nbsp; selected for preparation of activated carbon for removal of Cr (VI) from waste water.
Chandgude Shubham, Deshmukh Pratik, Hrutvikraj Mandekar, Bhosure Tejas. Production and experimental efficiency of activated carbon using the fruit shell of Gulmohar. National Journal of Advanced Research, Volume 6, Issue 2, 2020, Pages 08-16