biosorption competencies of Ficus, Syzygium
Mangifera seeds for hexavalent chromium mitigation
Singh, A. Tripathi1 and S.K. Srivastava
Applied Sciences, Institute of Engineering & Technology, Dr. A.P.J. Abdul
Kalam Technical University, Lucknow-226 021, India
Water Board, Ministry of Water Resources, River Development & Ganga
Rejuvenation, Lucknow - 226 021, India
Author E-mail: email@example.com
Paper received : 19.11.2016
Revised received : 05.02.2017
Re-revised received :
Aim: The dumped
subsurface industrial wastes containing toxic metals have contaminated water
resources because of their natural process leading to severe threat to flora,
fauna and ecosystem in UPSIDC, Unnao area. The waste water contaminated
chromium compounds can be purified through surface assimilation. The aim of
the present study was to match sorption competencies of Ficus racemosa
with Syzygium cumini and Mangifera cumini seed for chromium
(VI) removal from polluted water.
(VI) contaminated water samples were collected from UPSIDC sites, Unnao,
Uttar Pradesh standardized and diluted to experimental strength. The sorption
of Cr (VI) was investigated with relative competencies of biosorbents (F.
racemosa, M. indica and S. cumini seeds) with retention
time, sorbent dosage, temperature, chromium concentration and hydrogen ion
activity. The biosorption was tested with various isopleths (Linear, Chemist
sorption potential of F. racemosa seeds was of 10 mgg-1
where as S. cumini and M. indica showed biosorption capacity of
13 and 21 mgg-1 Cr at neutral hydrogen ion activity scale. The
surface assimilation was found highest at low pH scale range of two, rising
with sorbent application quantity, temperature and decreased with higher Cr
study reveals that biosorption efficiency decreased in the following order : M.
indica > S. cumini > F. racemosa seed for hexavalent
chromium from waste water.
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