Removal of Pb(II) and Cd(II) from water by adsorption on peels of banana.
The adsorption of lead(II) and cadmium(II) on peels of banana has been studied in batch mode using flame atomic absorption spectroscopy for metal estimation. Concerned parameters like adsorbent dose, pH, contact time and agitation speed were investigated. Langmuir, Freundlich and Temkin isotherms were employed to describe adsorption equilibrium. The maximum amounts of cadmium(II) and lead(II) adsorbed (qm), as evaluated by Langmuir isotherm, were 5.71 mg and 2.18 mg per gram of powder of banana peels, respectively. Study concluded that banana peels, a waste material, have good potential as an adsorbent to remove toxic metals like lead and cadmium from water.
Anwar
Jamil
J
Institute of Chemistry, University of the Punjab, Lahore 54590, Pakistan.
Shafique
Umer
U
Waheed-uz-Zaman
Salman
Muhammad
M
Dar
Amara
A
Anwar
Shafique
S
D000327:Adsorption; D001709:Biotechnology / Q000379:methods*; D002104:Cadmium / Q000737:chemistry*; D004305:Dose-Response Relationship, Drug; D052918:Environmental Restoration and Remediation / Q000379:methods*; D015386:Hazardous Substances; D006863:Hydrogen-Ion Concentration; D007854:Lead / Q000737:chemistry*; D028521:Musa / Q000378:metabolism*; D013054:Spectrophotometry, Atomic / Q000379:methods*; D013696:Temperature; D013997:Time Factors; D014874:Water Pollutants, Chemical / Q000032:analysis / Q000302:isolation & purification*; D018508:Water Purification / Q000379:methods*
D015386:Hazardous Substances; D014874:Water Pollutants, Chemical; D002104:Cadmium; D007854:Lead