Open AccessBioremediation of organic dyes using combination of plants ash
Author(s) -
Harpreet Kaur,
Vandana Kamboj
Publication year - 2019
Publication title -
foods and raw materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.212
H-Index - 8
eISSN - 2310-9599
pISSN - 2308-4057
DOI - 10.21603/2308-4057-2019-1-240-246
Subject(s) - congo red , crystal violet , adsorption , methylene blue , methyl orange , aqueous solution , orange (colour) , chemistry , nuclear chemistry , methyl red , scanning electron microscope , bioremediation , materials science , contamination , organic chemistry , photocatalysis , biology , ecology , food science , composite material , catalysis , microbiology and biotechnology
Water is the most crucial thing to mankind and so its contamination by various agencies is posing a threat to the natural balance. So, in the present work, the efficiency of various adsorbents derived from plant waste, to remove different dyes from aqueous solution was evaluated. Parameters for study were contact time, concentration and pH. Various combinations of plant ashes were used for the study. It was found that adsorbent prepared from the combination of orange peels, pomegranate and banana peels ashes, exhibited good adsorption capacity for methylene blue, congo red and crystal violet. All these dyes were completely removed from the aqueous solution while methyl orange was not removed. Congo red was removed completely within 40 min of contact with the adsorbent while methyl orange took 3 hrs to be removed to the extent of 48% only. The adsorption coefficient of congo red was found to be 2.33 while value for methylene blue and crystal violet was 1 and 1.66 respectively. The characterization of adsorbent was done by Scanning Electron Microscopy and IR spectroscopy. SEM image revealed the surface of adsorbent to be made of differential pores. From the results it became evident that the low-cost adsorbent could be used as a replacement for costly traditional methods of removing colorants from water.