Premium
Flotation of cadmium‐loaded biomass
Author(s) -
Matis K. A.,
Zouboulis A. I.
Publication year - 1994
Publication title -
biotechnology and bioengineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.136
H-Index - 189
eISSN - 1097-0290
pISSN - 0006-3592
DOI - 10.1002/bit.260440313
Subject(s) - biosorption , biomass (ecology) , cadmium , zeta potential , chemistry , streptomyces clavuligerus , wastewater , aqueous solution , metal ions in aqueous solution , streptomyces griseus , chromatography , pulp and paper industry , metal , adsorption , environmental engineering , environmental science , streptomyces , materials science , nanoparticle , biology , nanotechnology , organic chemistry , biochemistry , bacteria , ecology , sorption , clavulanic acid , amoxicillin , engineering , genetics , antibiotics
Biosorption of heavy metal ions such as Cd 2+ by dead biomass has been recognized as a potential alternative to existing removal technologies applied to wastewater treatment. Two bacterial strains were studied in the laboratory, streptomyces griseus and S. clavuligerus , an industrial by‐product. Both washed and unwashed samples were examined. Foam flotation proposed in this work as the separation state following biosorption. Effective biomass separation was conducted in the presence of a frother, ethanol. The pH of the solution was a crucial parameter for flotation and also for metal binding. Other basic parameters of flotation examined were the initial cadmium concentration in the dilute aqueous solution and the quantity of biomass used. A study of ζ‐potential measurements of the actinomycetes was carried out under the conditions used in the separation; surface tension was also measured. These provided useful information on the process. © 1994 John Wiley & Sons, Inc.