Removal of Lead from Contaminated Water and Clay Soil Using a Biosurfactant
- 1 July 2006
- journal article
- Published by American Society of Civil Engineers (ASCE) in Journal of Environmental Engineering
- Vol. 132 (7), 777-786
- https://doi.org/10.1061/(asce)0733-9372(2006)132:7(777)
Abstract
Lead removal from water and contaminated soils was investigated using biosurfactant, anionic, and nonionic surfactants in continuously stirred batch reactors. Lead-contaminated water up to 100 mg∕L and clay soil up to 3,000 mg∕kg were used in this investigation. The surfactant concentration up to 10 critical micelle concentration was used. The speciation of lead into the micelles was quantified and the lead removal efficiency depended on the level of contamination, surfactant type, and concentration. Of the surfactants used, biosurfactant (produced from used vegetable oil) had the best removal efficiency (75%) at a lead contamination of 100 mg∕L in water at pH of over 12. The Fourier-transformed infrared spectroscopy study showed that the carboxyl group in the biosurfactant was effective in removing the lead from the solution. Langmuir and Freundlich relationships were used to represent the micelle partitioning of lead in the surfactant solutions. Desorption of lead from contaminated kaolinite clay was re...Keywords
This publication has 23 references indexed in Scilit:
- Biodegradation of the Surfactant Linear Alkylbenzenesulfonate in Sewage-Contaminated Groundwater: A Comparison of Column Experiments and Field Tracer TestsEnvironmental Science & Technology, 1998
- Metal Adsorption and Desorption Characteristics of Surfactant-Modified Clay ComplexesIndustrial & Engineering Chemistry Research, 1998
- Surfactant enhanced remediation of cadmium contaminated soilsWater Science & Technology, 1998
- Feasibility study of surfactant use for remediation of organic and metal contaminated soilsSoil and Sediment Contamination: An International Journal, 1997
- Removal of Cadmium, Lead, and Zinc from Soil by a Rhamnolipid BiosurfactantEnvironmental Science & Technology, 1995
- Binding of Heavy Metals to Derivatives of Cholesterol and Sodium Dodecyl SulfateJournal of Environmental Engineering, 1995
- Precipitation of Tricarboxylic Acid Biosurfactant Derived from Spiculisporic Acid with Metal Ions in Aqueous SolutionJournal of Colloid and Interface Science, 1995
- Crossflow Surfactant-Based Ultrafiltration of Heavy Metals from Waste StreamsSeparation Science and Technology, 1994
- Solubilization of non-polar compounds by non-ionic surfactant micellesWater Research, 1994
- Surfactant Solubilization of Organic Compounds in Soil/Aqueous SystemsJournal of Environmental Engineering, 1994