Original Research Article
Year: 2016 | Month: January-March | Volume: 1 | Issue: 01 | Pages: 22-27
Batch Adsorption for Iron and Chromium Removal by Low Cost
Adsorbents: Studies on Affecting Parameters
Sunil J.
Kulkarni, Lalit Bhole, Mandar Rampure
Datta Meghe
College of Engineering, Airoli, Navi Mumbai, Maharashtra, India.
Corresponding Author: Sunil J. Kulkarni
ABSTRACT
Heavy metal removal from
wastewater can be carried out by various chemical, physical and biological
methods. The presence of heavy metal can affect man and environment adversely.
The heavy metal treatment by using adsorption can be carried out by using low
cost adsorbents. In the present research, the bagasse and groundnut shells are
used as low cost starting materials for adsorbent preparation. Batch studies
are carried out for studying removal of iron and chromium from synthetic
wastewater for bagasse adsorbent (BA) and groundnut shell adsorbent (GSA). It
was observed that optimum adsorbent dosage of 2.5 g/100 ml and 1.5 g/100 ml
were sufficient for adsorption of almost 90% of the initial metal concentration
for iron and chromium respectively. The amount of the metal removed at optimum
pH increased with increase in adsorbent dosage. The optimum pH for the removal
of chromium (VI) and iron (III) was in the range of 2 to 4 for both, BA and
GSA.
Key words: Heavy metals, adsorbate, adsorbent, contact time, concentration.