Lead adsorption by green Enteromorpha algae was studied. Adsorption capacity was 83.8？mg/g at pH 3.0 with algae (E) and 1433.5？mg/g for silicates modified algae (EM). FTIR and thermal analysis of algae materials were studied. Thomas and Yoon-Nelson column model were best for adsorbent (E) and algae after reflux (ER) and Yan model for (EM) with capacity 76.2, 71.1, and 982.5？mg/g, respectively. (ER) and (EM) show less swelling and better flow rate control than (E). Nonlinear methods are more appropriate technique. Error function calculations proved valuable for predicting the best adsorption isotherms, kinetics, and column models. 1. Introduction The contamination of wastewater and soil with heavy metal ions is a complex problem, since these metals are toxic in both their elemental and chemically combined forms. Natural water is contaminated with several heavy metals due to their widespread use in industry and agriculture arising mostly from mining wastes and industrial discharges. From an environmental protection point of view, heavy metal ions should be removed at the source in order to avoid pollution of natural waters and subsequent metal accumulation in the food chain. In fact, removal of this contamination has received much attention in recent years [1, 2]. Lead being one of the “big three” toxic heavy metals, it is of profound concern as a toxic waste and contaminant of surface waters as it becomes concentrated throughout the food chain to humans [3]. Lead damages different body organs (central and peripheral nervous systems and kidney); also, lead has a teratogenic effect, causing stillbirth in women and affecting the fetus [4]. Conventional methods for removal are chemical precipitation, chemical oxidation, chemical reduction, ion exchange, filtration, electrochemical treatment, and evaporation [5, 6]. These methods often are very expensive. Alternative method for heavy metal removal was developed in the last past decade and known as biosorption. Marine algae, an abundant renewable natural biomass, have been used as dead nonliving materials for removal of heavy metals [7, 8]. In addition, algae were found accumulating heavy metal in their habitat and are thus used as heavy metal pollution monitors in fresh and salty water such as river, sea, and ocean. They have been also used in on-site bioremediation of polluted natural water [9, 10]. Furthermore, the search for a low-cost and easily available adsorbent has led to the investigation of materials of agricultural and biological origin (bacteria, fungi, yeast, and algae can remove heavy metals
References
[1]
J. Dojlido and G. A. Best, Chemistry of Water and Water Pollution, Ellis Horwood, New York, NY, USA, 1993.
[2]
A. Stafiej and K. Pyrzynska, “Adsorption of heavy metal ions with carbon nanotubes,” Separation and Purification Technology, vol. 58, no. 1, pp. 49–52, 2008.
[3]
R. H. Crist, K. Oberholser, J. McGarrity, D. R. Crist, J. K. Johnson, and J. M. Brittsan, “Interaction of metals and protons with algae. 3. Marine algae, with emphasis on lead and aluminum,” Environmental Science and Technology, vol. 26, no. 3, pp. 496–502, 1992.
[4]
B. Volesky and I. Prasetyo, “Cadmium removal in a biosorption column,” Biotechnology and Bioengineering, vol. 43, no. 11, pp. 1010–1015, 1994.
[5]
J. R. Boulding, EPA Environmental Engineering Sourcebook, Ann Arbor Press, 1996.
[6]
R. H. Christ, J. R. Martin, and D. R. Christ, “Ionic mechanisms for heavy metal removal as sulphides and hydroxides,” in Mineral Bioprocessing, R. W. Smith and M. Misera, Eds., pp. 275–287, The Mineral, Metals & Materials Society, Warrendable, Pa, USA, 1991.
[7]
R. Ofer, A. Yerachmiel, and Y. Shmuel, “Marine macroalgae as biosorbents for cadmium and nickel in water,” Water Environment Research, vol. 75, no. 3, pp. 246–253, 2003.
[8]
N. Kuyucak and B. Volesky, “Biosorbents for recovery of metals from industrial solutions,” Biotechnology Letters, vol. 10, no. 2, pp. 137–142, 1988.
[9]
M. T. K. Tsui and W.-X. Wang, “Temperature influences on the accumulation and elimination of mercury in a freshwater cladoceran, Daphnia magna,” Aquatic Toxicology, vol. 70, no. 3, pp. 245–256, 2004.
[10]
G. Lozano, A. Hardisson, A. J. Gutiérez, and M. A. Lafuente, “Lead and cadmium levels in coastal benthic algae (seaweeds) of Tenerife, Canary Islands,” Environment International, vol. 28, no. 7, pp. 627–631, 2003.
[11]
X. Sort and J. M. Alca？iz, “Effects of sewage sludge amendment on soil aggregation,” Land Degradation & Development, vol. 10, no. 1, pp. 3–12, 1999.
[12]
M. Hanbali, H. Holail, and H. Hammud, “Remediation of lead by pretreated red algae: adsorption isotherm, kinetic, column modeling and simulation studies,” Green Chemistry Letters and Reviews, vol. 7, no. 4, pp. 342–358, 2014.
[13]
I. Sastre, M. A. Vicente, and M. C. Lobo, “Influence of the application of sewage sludges on soil microbial activity,” Bioresource Technology, vol. 57, no. 1, pp. 19–23, 1996.
[14]
ISSS Working Group RB, World Reference Base for Soil Resources: Atlas, ISRIC-FAO-ISSS Acco, Leuven, Belgium, 1998.
[15]
USEPA, “Method 3051a: Microwave assisted acid dissolution of sediments, Sludges, soils, and oils,” 2nd ed U.S. Gov. Print. Office, Washington, DC, USA, 1997.
[16]
M. Schnitzer and S. U. Khan, Soil Organic Matter, Elsevier, Amsterdam, The Netherlands, 1978.
[17]
G. Gascó, M. J. Martínez-I？igo, and M. C. Lobo, “Soil organic matter transformation after a sewage sludgeapplication,” Electronic Journal of Environmental, Agricultural and Food Chemistry, vol. 3, no. 4, pp. 716–722, 2004.
[18]
T. C. Tan, C. K. Chia, and C. K. Teo, “Uptake of metal ions by chemically treated human hair,” Water Research, vol. 19, no. 2, pp. 157–162, 1985.
[19]
B. Coupal and J. M. Lalancette, “The treatment of waste waters with peat moss,” Water Research, vol. 10, no. 12, pp. 1071–1076, 1976.
[20]
S. K. Srivastava, R. Tyagi, and N. Pant, “Adsorption of heavy metal ions on carbonaceous material developed from the waste slurry generated in local fertilizer plants,” Water Research, vol. 23, no. 9, pp. 1161–1165, 1989.
[21]
A. G. Rowley, F. M. Husband, and A. B. Cunningham, “Mechanisms of metal adsorption from aqueous solutions by waste tyre rubber,” Water Research, vol. 18, no. 8, pp. 981–984, 1984.
[22]
D. K. Singh, D. P. Tiwari, and D. W. Saksena, “Removal of Pb from aqueous Solution by chemically treated used tea leaves,” Water Research, vol. 3, pp. 169–177, 1993.
[23]
P. Donghee, Chromium removal by biosorption using Ecklonia seaweed Biomass [M.S. thesis], POSTECH, Gyeongsangbuk-do, Republic of Korea, 2002.
[24]
Y. S. Yun, D. Park, J. M. Park, and B. Volesky, “Biosorption of trivalent chromium on the brown seaweed biomass,” Environmental Science and Technology, vol. 35, no. 21, pp. 4353–4358, 2001.
[25]
N. Kuyucak and B. Volesky, in Biosorption of Heavy Metals, B. Volesky, Ed., pp. 173–198, CRC Press, Boca Raton, Fla, USA, 1990.
[26]
H. A. Waldern, Stofen Sub-Clinic Lead Poisoning, Academic Press, New York, NY, USA, 1974.
[27]
Z. R. Holan, B. Volesky, and I. Prasetyo, “Biosorption of cadmium by biomass of marine algae,” Biotechnology and Bioengineering, vol. 41, no. 8, pp. 819–825, 1993.
[28]
I. Tüzün, G. Bayramo？lu, E. Yal？？n, G. Ba？aran, G. ？elik, and M. Y. Ar？ca, “Equilibrium and kinetic studies on biosorption of Hg(II), Cd(II) and Pb(II) ions onto microalgae Chlamydomonas reinhardtii,” Journal of Environmental Management, vol. 77, no. 2, pp. 85–92, 2005.
[29]
M. Spinti, H. N. Zhuang, and E. M. Trujillo, “Evaluation of immobilized biomass beads for removing heavy metals from wastewaters,” Water Environment Research, vol. 67, no. 6, pp. 943–952, 1995.
[30]
R. S. Laxman and S. More, “Reduction of hexavalent chromium by Streptomyces griseus,” Minerals Engineering, vol. 15, no. 11, pp. 831–837, 2002.
[31]
H. H. Hammud, L. Fayoumi, H. Holail, and M. E. El-Sayed, “Biosorption studies of methylene blue by mediterranean algae carolina and its chemically modified forms. Linear and nonlinear models' prediction based on statistical error calculation,” International Journal of Chemistry, vol. 3, no. 4, pp. 147–163, 2011.
[32]
H. H. Hammud, M. Chahine, B. El Hamaoui, and Y. Hanifehpour, “Lead uptake by new silica-carbon nanoparticles,” European Journal of Chemistry, vol. 4, no. 4, pp. 432–440, 2013.
[33]
I. Abbas, H. H. Hammud, and H. Shamsaldeen, “Calix[4]pyrrole macrocycle: extraction of fluoride anions from aqueous media,” European Journal of Chemistry, vol. 3, no. 2, pp. 156–162, 2012.
[34]
H. H. Hammud, M. E. Mansour, S. Shaalan, E. Khamis, and A. El-Shaar, “Adsorption of mercuric ion by marine algae enteromorpha,” International Journal of Applied Chemistry, vol. 2, no. 2, pp. 87–102, 2006.
[35]
J. L. Zhou, R. J. Kiff, and J. Chem, “The uptake of copper from aqueous solution by immobilized fungal biomass,” Journal of Chemical Technology and Biotechnology, vol. 52, no. 3, pp. 317–330, 1991.
[36]
A. A. Hamdy, “Removal of Pb2+ by biomass of marine algae,” Current Microbiology, vol. 41, no. 4, pp. 239–245, 2000.
[37]
A. A. Hamdy, “Biosorption of heavy metals by marine algae,” Current Microbiology, vol. 41, no. 4, pp. 232–238, 2000.
[38]
P. Ahuja, R. Gupta, and R. K. Saxena, “Sorption and desorption of cobalt by Oscillatoria anguistissima,” Current Microbiology, vol. 39, no. 1, pp. 49–52, 1999.
[39]
H. Kojima and K. Y. Lee, Photosynthetic Microorganisms in Environmental Biotechnology, Springer, Hong Kong, 2001.
[40]
B. Volesky, Biosorption of Heavy Metals, CRC Press, Boca Raton, Fla, USA, 1990.
[41]
Y. S. Ho and G. McKay, “Pseudo-second order model for sorption processes,” Process Biochemistry, vol. 34, no. 5, pp. 451–465, 1999.
[42]
G. Y. Yan, T. Viraraghavan, and M. Chen, “A new model for heavy metal removal in a biosorption column,” Adsorption Science & Technology, vol. 19, no. 1, pp. 25–43, 2001.
[43]
P. Pavasant, R. Apiratikul, V. Sungkhum, P. Suthiparinyanont, S. Wattanachira, and T. F. Marhaba, “Biosorption of Cu2+, Cd2+, Pb2+, and Zn2+ using dried marine green macroalga Caulerpa lentillifera,” Bioresource Technology, vol. 97, no. 18, pp. 2321–2329, 2006.
[44]
P. Lodeiro, J. L. Barriada, R. Herrero, and M. E. Sastre de Vicente, “The marine macroalga Cystoseira baccata as biosorbent for cadmium(II) and lead(II) removal: kinetic and equilibrium studies,” Environmental Pollution, vol. 142, no. 2, pp. 264–273, 2006.
[45]
R. Herrero, P. Lodeiro, C. Rey-Castro, T. Vilari？o, and M. E. Sastre de Vicente, “Removal of inorganic mercury from aqueous solutions by biomass of the marine macroalga Cystoseira baccata,” Water Research, vol. 39, no. 14, pp. 3199–3210, 2005.
[46]
P. X. Sheng, Y.-P. Ting, J. P. Chen, and L. Hong, “Sorption of lead, copper, cadmium, zinc, and nickel by marine algal biomass: characterization of biosorptive capacity and investigation of mechanisms,” Journal of Colloid and Interface Science, vol. 275, no. 1, pp. 131–141, 2004.
[47]
R. Jalali, H. Ghafourian, Y. Asef, S. J. Davarpanah, and S. Sepehr, “Removal and recovery of lead using nonliving biomass of marine algae,” Journal of Hazardous Materials, vol. 92, no. 3, pp. 253–262, 2002.
[48]
J. R. Rao and T. Viraraghavan, “Biosorption of phenol from an aqueous solution by Aspergillus niger biomass,” Bioresource Technology, vol. 85, no. 2, pp. 165–171, 2002.
[49]
J. T. Matheickal and Q. Yu, “Biosorption of lead from aqueous solutions by marine algae Ecklonia radiata,” Water Science and Technology, vol. 34, no. 9, pp. 1–7, 1996.
[50]
B. Volesky and Z. R. Holan, “Biosorption of heavy metals,” Biotechnology Progress, vol. 11, no. 3, pp. 235–250, 1995.
[51]
Z. R. Holan and B. Volesky, “Biosorption of lead and nickel by biomass of marine algae,” Biotechnology and Bioengineering, vol. 43, no. 11, pp. 1001–1009, 1994.
[52]
A. M. Abdel-Aty, N. S. Ammar, H. H. Abdel Ghafar, and R. K. Ali, “Biosorption of cadmium and lead from aqueous solution by fresh water alga Anabaena sphaerica biomass,” Journal of Advanced Research, vol. 4, no. 4, pp. 367–374, 2013.
[53]
Y. H. Yoon and J. H. Nelson, “Application of gas adsorption kinetics I. A theoretical model for respirator cartridge service life,” The American Industrial Hygiene Association Journal, vol. 45, no. 8, pp. 509–516, 1984.
