Design and Development of Low Cost Adsorbents: Purification of Waste Industrial Effluent

by Girdhar Joshi

Clean and pure water is one of the implicit requisites for a healthy human population. However the growing industrialization and extensive use of chemicals for various concerns, has increased the burden of unwanted pollutants in the drinking water of developing countries like India. The entry of potentially hazardous substances into the biota has been magnifying day by day. In the absence of a possible stoppage of these, otherwise, useful chemicals, the only way to maintain safer water bodies is to develop efficient purifying technologies. One such immensely beneficial procedure that has been in use is that of purification of water using 'adsorbents'. Indigenous minerals and natural plants products have potential for removing many pollutants viz. fluoride, arsenic, nitrate, heavy metals, pesticides as well as tri-halomethanes. Adsorbents which are derived from carbon, alumina, zeolite, clay minerals, iron ores, industrial by products, and natural products viz. parts of the plants, herbs and algal biomass offer promising potential of removal of these pollutants with greater adsorbing efficiencies.

68 pages, Paperback

Published February 2, 2013

About the author

Born in 1963 and brought up in Chanch village of Almora district in picturesque Uttarakhand, India, Girdhar Joshi did his schooling in the village. After completing intermediate from Government Inter College Manila, he migrated to Delhi in search of fodder. He received his bachelor degree in commerce from Delhi University in 1986 and subsequently earned Diploma in Business Management form IGNOU and a master degree in Business Management specializing in information technology, from Punjab Technical University. He started his career with central government in New Delhi in 1983 and quit the job in 1998 to start his own business in software development, which still earns him his bread.

His dormant flair for writing was instigated by chanced invitations for guest lectures at some of the business management schools in New Delhi. What he jotted down for his students later found shape in the form of books. His books on management and information technology. 'Information Technology for Retail' (2009) and 'Management Information Systems' (2013) have been published by Oxford University Press, New Delhi; and he co-authored 'IT in Retail' (2012), published by Vikas Publishing Co., Noida. 'Bedaul Kataran', a collection of his poems in Hindi written during his student years, was also published in 2014.

But, the urge to write did not stop at the academic books. When he was not selling software, he found himself connecting some dots. The result: 'Some Mistakes Have No Pardon', a story of trials, triumphs, and tribulations, in the form of a novel was born. This is one of the many stories he intends to tell.

The sequence of priorities have changed now: when not writing stories, he will be selling software!

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