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Sorption of malachite green (a cationic dye) and heavy metals by dead biomass of Phormidesmis molle (cyanobacteria)‐dominated mat
Author(s) -
Rai Jyoti,
Kumar Dhananjay,
Gaur J.P.
Publication year - 2019
Publication title -
water and environment journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 37
eISSN - 1747-6593
pISSN - 1747-6585
DOI - 10.1111/wej.12368
Subject(s) - sorption , malachite green , ternary operation , sorbent , chemistry , biomass (ecology) , cationic polymerization , metal ions in aqueous solution , nuclear chemistry , environmental chemistry , inorganic chemistry , metal , adsorption , organic chemistry , geology , oceanography , computer science , programming language
The test mat biomass rapidly sorbed malachite green (MG; a cationic dye) and heavy metals from mono‐component, binary and ternary systems. In mono‐component system, the sorption of Cu, Cd and MG increased when pH was increased from 3 to 4. However, in binary and ternary systems sorption of metals and MG were not substantially influenced by pH within the range 3–5. The presence of Cu or MG in binary or ternary systems reduced the sorption of each other from the solution. However, Cd enhanced the sorption of MG from binary solution and vice versa. Moreover, the ability of mat biomass to rapidly sorb metal ions and malachite green from mono‐component, binary and ternary systems, together with easy harvesting of biomass due to self‐immobilized nature, make it a suitable sorbent for the treatment of wastewaters that concomitantly bear the both heavy metals and dyes as pollutants.