Open AccessBiosorption of Cd2+ using an admixture of Ulva lactuca and fly ash from coal-fired power plant
Author(s) -
Aileen D. Nieva,
Reuben James Q. Buenafe,
R E Amante,
Cristian Martínez
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/344/1/012012
Subject(s) - fly ash , ulva lactuca , adsorption , biosorption , langmuir adsorption model , chemistry , langmuir , lactuca , nuclear chemistry , environmental chemistry , environmental engineering , botany , environmental science , biology , organic chemistry , sorption
This study investigated the adsorption of Cd 2+ in a simulated wastewater using green macro alga, U. lactuca and fly ash from coal-fired power plant, individually and as an admixture (25:75, 50:50, and 75:25). The maximum adsorption capacities for 0:100, 25:75, 50:50, 75:25 and 100:0 ratios of U. lactuca and fly ash were 6.47, 6.28, 6.27, 6.19, and 6.39 mg/g adsorbent, respectively. The optimum adsorption was found to occur at an initial Cd 2+ concentration of 70 mg/L at 293 K, pH 5, 120-minute contact time, 300 rpm agitation speed, and 10 g/L biosorbent dosage. The obtained results fitted well with Langmuir Isotherm, suggesting a monolayer adsorption with adsorption capacity of 6.852 mg/g adsorbent. The highest adsorption capacity was observed using fly ash while the lowest was observed using 75:25 U. lactuca to fly ash ratio.