• Sahil Meshram
• Mahi Gajbhiye
• Rupesh Desai
• Shivam Barge
• Kanchan Humnapure

An efficient, cost effective, rapid and convenient method has been developed for preparation of activated carbon from sun-dried Gulmohar (Delonix Regia) Fruit shells as precursors. 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. Activation of the precursors was brought about by phosphoric acid as it is non-toxic and toxic heavy metals and suitable for treating potable water .The various parameters such as concentration, Activation time and the heavy metals (chromium is such metal which is to be found in aqueous system as ionic form) is to be used. Adsorption has been advocated as most promising among the currently known methods for wastewater treatment, especially for removal of metals like copper, lead, chromium and nickel. The adsorption process can be carried out using abundantly available low-cost adsorbent. The method was found to be superior than many other existing method in terms of its cost, efficiency and ease of preparation.

Adsorption, Activated Carbon, Delonix Regia, Activation, Hexavalent chromium, Royal Poinancios.

"Adsorption studies of metal removal (lead, copper, chromium and nickel) on activated carbon derived from delonix regia (gulmohar fruit shell).", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.10, Issue 2, page no.f522-f531, February-2023, Available :http://www.jetir.org/papers/JETIR2302560.pdf

"Adsorption studies of metal removal (lead, copper, chromium and nickel) on activated carbon derived from delonix regia (gulmohar fruit shell).", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.10, Issue 2, page no. ppf522-f531, February-2023, Available at : http://www.jetir.org/papers/JETIR2302560.pdf