Advanced SearchSearch Tips
Removal of heavy metals using waste sludge by biosorptive flotation
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
Removal of heavy metals using waste sludge by biosorptive flotation
Lee Chang-Han; Ahn Kab-Hwan;
  PDF(new window)
Waste sludge may be used to recovery wastewater contaminated with heavy metals. The waste sludge is an inexpensive readily available source of biomass for biosorption with metal-bearing wastewater. The biosorption of heavy metals such as Pb(II), Cu(II), Cr(II), and Cd(II) onto waste sludge was investigated in batch ex­periments and waste sludge loaded heavy metals was separated by dissolved air flotation. The biosorption equi­bria of heavy metals could be described by Langmuir and Freundich isotherms. The adsorption capacity for waste sludge was in the sequence of Pb(II)>Cr(II)>Cu(II)>Cd(II). The system attained equilibrium about 20 min. The Langmuir and Freundlich adsorption model effectively described the biosorption equilibrium of Cu(II) and Cr(II) ions on waste sludge. Maximum adsorption capacity of Cu(II) and Cr(II) were 196.08 and 158.73 mg/g, respectively. Solid-liquid separation efficiencies were kept above on waste sludge loaded heavy metals, and were decreased with pH increasing.
Biosorption;Heavy metal;DAF;Waste sludge;
 Cited by
Wei, N. S., 1980, Removal of heavy metals from wastewaters, B&L Information Services, 4pp

정윤철, 1991, 미생물을 이용한 폐수 중 중금속 제거/회수 기술 개발, 과학기술처, 53-65pp

Lester, J. N., 2000, Heavy metals in wastewater and sludge treatment processes, CRC press, 41 -68pp

Edzwald, J. K., 1993, Algae, bubble, coagulants, and dissolved air flotation, Wat. Sci. Tech., 27(10), 67-81

Plummer, J. D. and J. K. Edzwald, 1995, Removing Cryptosporidium by dissolved air flotation, AWWA, Sept., 85-95

Matis, K. A., A. I. Zouboulis and P. Solari, 1994, Biosorptive flotation in metal ions recovery', Sepa. Sci. & Tech., 29, 1055-1071 crossref(new window)

Neufield, R. D. and E. R. Herman, 1975, Heavy metal removal by activated sludge, J. Wat. Pollut. Control Fed., 47, 310-329

Aldrich, C. and D. Feng, 2000, Removal of heavy metals from wastewater effluents by biosorptive flotation, Mine. Eng., 13, 1129-1138 crossref(new window)

이창한, 2002, 금속염 응집제어에 의한 폐슬러지의 응집현상 및 탈수 특성, 부산대학교 박사학위논문, 87-100

Kefala, M. I., A. I. Zouboulis and K. A. Matis, 1999, Biosorption of cadmium ions by Actinomycetes and separation by flotation, Environmental Pollution, 104, 283-293 crossref(new window)

Sadowski, Z., Z. Golab and R. W. Smith, 1991, Flotation of Streptomyces pilosus after lead accumulation, Biotechnol. and Bioeng., 37, 955-959 crossref(new window)

Bruus, J. H., P. H. Nielsen and K. Keiding, 1992, On the stability of activated sludge floes with to dewatering, Wat. Res., 26, 1597-1604 crossref(new window)

Arican, B., C. F. Gokcay and U. Yetis, 2002, Mechanistics of nickel sorption by activated sludge, Process Biochem., 37(11), 1307-1315 crossref(new window)

Aksu, Z., 2001, Equilibrium and kinetic modeling of cadmium (II) biosorption by C. volgaris in a batch system : effect of temperature, Sep. Purif. Tech., 21, 285-294 crossref(new window)

Fourest, E. and J. Roux, 1992, Heavy metal biosorption by fungal mycelial by-products: mechanism and influence of pH, Appl Microbiol. Biotech., 37, 399-403 crossref(new window)

Benguella, B. and H. Benaissa, 2002, Cadmium removal from aqueous solution by chitin: kinetic and equilibrium studies, Wat. Res., 36, 2463-2474 crossref(new window)

Cruz, C. C. V., A. C. A. Costa, C. A. Henriques and A. S. Luna, 2004, Kinetic modeling and equilibrium studies during cadmium biosorption by dead Sargassum sp. biomass, Biores. Tech., 91, 249-257 crossref(new window)

Eric, F. and R. J. Claude, 1992, Heavy metal biosorption by fungal mycelial by-products : mechanisms and influence of pH, Appl. Microbiol, & Biotech., 37, 399-403 crossref(new window)

이창한, 나영수, 김도한, 이송우, 송승구, 2002, 혐기화 시간에 따른 활성슬러지의 물리.화학적 특성 변화, 한국환경과학회지, 11, 339-346