Removal of Arsenic Contamination from Gomti River Water by using Activated Charcoal Absorbent Integrated with Solar Distillation Unit

Suresh Kumar Patel1, Dhananjay Singh1,* and Rahul Dev2

1Department of Chemical Engineering, Institute of Engineering & Technology Lucknow-226021, India

2Department of Mechanical Engineering, Motilal Nehru National Institute of Technology Allahabad-211004, India

*Corresponding author: E-mail:


Arsenic is a ubiquitous and short-term poisoning element, which affects living things. In this study, the removal of arsenic from Gomti river water, Lucknow, Uttar Pradesh integrated modified double slope solar still with activated adsorption bed has been applied. Arsenic contamination in Gomti river at five places were found in the river water in the range of 55.70 ppb to 681.60 ppb, which exceed the maximum permissible limit of 10 ppb as recommended by WHO. Maximum concentration of arsenic in water was found in Mohan Maekins (681.60 ppb). However, mean arsenic concentration in water followed the order: Gaughat (115.37 ppb) < Hanuman setu (297.80 ppb) < Barrage (302.62 ppb) < Kukrail (336.27 ppb) < Mohan Maekins (481.89 ppb). The amount of adsorbed arsenic was increased with increasing initial concentration of arsenic. The aim of this study is to develop a low-cost process for the removal of arsenic effectively including the production of potable water. After results, data were analyzed with ICP-MS method and also verified with Langmuir and Freundlich adsorption isotherm models.


Arsenic, Gomti river, Solar distillation, Activated charcoal, Adsorption, Isotherms.

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