TY - JOUR
T1 - Bioadsorción de cobre utilizando lodo anaerobio acidogénico
AU - Certucha-Barragán, María Teresa
AU - Duarte-Rodríguez, Glenda
AU - Acedo-Félix, Evelia
AU - Almendariz-Tapia, F. Javier
AU - Monge-Amaya, Onofre
AU - Valenzuela-García, Jesús L.
AU - Leal-Cruz, A. L.
PY - 2010
Y1 - 2010
N2 - In this paper a study of biosorption of copper was carried out using living and nonliving acidogenic anaerobic sludge. Characterization results of sludge are as follows: TS 60.57 g/L, VSS 30.95, SVI 43 mLsludge/gVSS, particle size from 0.25 to 0.6 mm, μmax of 0.375 gCOD-CH4/gVSS.d, and Ksacetate of 27.11 mM. Bioadsorption trails using copper concentration from 50 to 300 mgCu(II)/L show that copper removal is more evidently during the frst 15 minutes. Bioadsorption capacity of copper in living and non-living sludge has the same behavior and there is a well ftting with Langmuir model in both systems, where qmax is 25.4 and 27.67 mgCu(II)/gVSS, and b corresponds to 0.00739 y 0.00699, respectively. In addition, living and non-living sludge can be used to remove copper using acidogenic anaerobic reactors. SEM, EDS and XRD results for sludge reveal the presence of bacteria, diatoms (amorphous silica) and silica (cris-tobalite) matrix. Qualitative and quantitative analysis by EDS showed the presence of copper bioaccumulated into diatoms and on the bioflms.
AB - In this paper a study of biosorption of copper was carried out using living and nonliving acidogenic anaerobic sludge. Characterization results of sludge are as follows: TS 60.57 g/L, VSS 30.95, SVI 43 mLsludge/gVSS, particle size from 0.25 to 0.6 mm, μmax of 0.375 gCOD-CH4/gVSS.d, and Ksacetate of 27.11 mM. Bioadsorption trails using copper concentration from 50 to 300 mgCu(II)/L show that copper removal is more evidently during the frst 15 minutes. Bioadsorption capacity of copper in living and non-living sludge has the same behavior and there is a well ftting with Langmuir model in both systems, where qmax is 25.4 and 27.67 mgCu(II)/gVSS, and b corresponds to 0.00739 y 0.00699, respectively. In addition, living and non-living sludge can be used to remove copper using acidogenic anaerobic reactors. SEM, EDS and XRD results for sludge reveal the presence of bacteria, diatoms (amorphous silica) and silica (cris-tobalite) matrix. Qualitative and quantitative analysis by EDS showed the presence of copper bioaccumulated into diatoms and on the bioflms.
KW - Anaerobic-acidogenic-sludge
KW - Bioadsorption
KW - Copper
KW - Isotherm
KW - Removal
UR - http://www.scopus.com/inward/record.url?scp=78049506701&partnerID=8YFLogxK
M3 - Artículo
SN - 0188-4999
VL - 26
SP - 101
EP - 108
JO - Revista Internacional de Contaminacion Ambiental
JF - Revista Internacional de Contaminacion Ambiental
IS - 2
ER -