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Abstrakty
The fate of cadmium and copper during thermal and ultrasound treatments of activated sludge was studied in terms of mixed liquor physicochemical modifications. Biochemical composition of sludge testfied to the solubilization of its biopolymers. Granulometric measurements demonstrated that ultrasound and temperature induced respectively floc disintegration and macrofloc deflocculation. The uptake of the two metals by sludge flocs was improved with an increase in temperature. Both metals were in a different way adsorbed by sludge flocs, since mass transfer improvement together with the extended surface area offered by sonicated flocs increased the cadmium adsorption. At the same time, an increase in soluble organic ligands limited copper uptake.
Czasopismo
Rocznik
Tom
Strony
5--15
Opis fizyczny
bibliogr. 19 poz.
Twórcy
autor
autor
autor
autor
- Groupe de Recherche Eau Sol Environnement, Université de Limoges, Parc ESTER Technopôle, 16 rue Atlantis, 87068 Limoges Cedex, France, casellas@ensil.unilim.fr
Bibliografia
- [1] BOUGRIER C., CARRÈRE H., DELGENÈS J.P., Solubilisation of waste-activated sludge by ultrasonic treatment, Chemical Engineering Journal, 2005, 106, 163–169.
- [2] BOUGRIER C., DELGENÈS J.P., CARRÈRE H., Impacts of thermal pre-treatments on the semicontinuous anaerobic digestion of waste activated sludge, Biochemical Engineering Journal, 2007, 34, 20–27.
- [3] CAO X.Q., CHEN J., CAO Y.L., ZHU J.Y., HAO X.D., Experimental study on sludge reduction by ultrasound, Water Science and Technology, 2006, 54, 87–93.
- [4] COMMENGES-BERNOLE N., MARGUERIE J., Adsorption of heavy metals on sonicated activated sludge, Ultrasonics Sonochemistry, 2008, (in press), DOI:10.1016/j.ultsonch.2008.05.006
- [5] DUBOIS M., GILLES K.A., HAMILTON J.K., REBERS P.A., SMITH F., Colorimetric method for determination of sugars and related substances, Analytical Chemistry, 1956, 28, 350–356.
- [6] FRØLUND B., PALMGREN R., KEIDING K., NIELSEN P.H., Extraction of extracellular polymers from activated sludge using a cation exchange resin, Water Research, 1996, 30, 1749–1758.
- [7] GONZE E., PILLOT S., VALETTE E., GONTHIER Y., BERNIS A., Ultrasonic treatment of an aerobic activated sludge in a batch reactor, Chemical Engineering and Processing, 2003, 42, 965–975.
- [8] GUIBAUD G., TIXIER N., BOUJU A., BAUDU M., Relation between extracellular polymers’ composition and its ability to complex Cd, Cu and Pb, Chemosphere, 2003, 52, 1701–1710.
- [9] KARVELAS M., KATSOYIANNIS A., SAMARA C., Occurrence and fate of heavy metals in the wastewater treatment process, Chemosphere, 2003, 53, 1201–1210.
- [10] KATSOYIANNIS A., SAMARA C., The fate of dissolved organic carbon (DOC) in the wastewater treatment process and its importance in the removal of wastewater contaminants, Environmental Science and Pollution Research, 2007, 14, 284–292.
- [11] KIM Y.U., HA J., YOON K.Y., LEE S.H., Effect of ultrasound on sludge from water treatment plant, Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, 2004, 43, 7362–7363.
- [12] LAURENT J., CASELLAS M., DAGOT C., Heavy metals uptake by sonicated activated sludge: relation with floc surface properties, Journal of Hazardous Materials, 2008, (in press), DOI:10.1016/j.jhazmat. 2008.05.066
- [13] LAZZARI L., SPERNI L., BERTIN P., PAVONI B., Correlation between inorganic (heavy metals) and organic (PCBs and PAHs) micropollutant concentrations during sewage sludge composting processes, Chemosphere, 2000, 41, 427–435.
- [14] LOWRY E.H., ROSEBROUGH N.J., LEWIS FAR R.A., RANDALL R.J., Protein measurement with the folin phenol reagent, Journal of biological chemistry, 1951, 193, 265–275. The fate of heavy metals during treatment of sludge 15
- [15] PROROT A., ESKICIOGLU C., DROSTE R., DAGOT C., LEPRAT P., Physiological state of microorganisms assessment in activated sludge with flow cytometry: application to the sludge production minimization monitoring, Journal of Industrial Microbiology and Biotechnology, 2008, (in press), DOI: 10.1007/s10295-008-0423-9
- [16] ROCHER M., GOMA G., PILAS BEGUE A., LOUVEL L., ROLS J., Towards a reduction in excess sludge production in activated sludge processes: biomass physicochemical treatment and biodegradation, Applied Microbiology and Biotechnology, 1999, 51, 883–890.
- [17] SCANCAR J., MILACIC R., STRAZAR M., BURICA O., Total metal concentrations and partitioning of Cd, Cr, Cu, Fe, Ni and Zn in sewage sludge, Science of the Total Environment, 2000, 250, 9–19.
- [18] SCHNELLER B., YANG R., Ultrasound enhanced adsorption and desorption of phenol on activated carbon and polymeric resin, Industrial and Engineering Chemistry Research, 2001, 40, 4912–4918.
- [19] ØDEGAARD H., Sludge minimization technologies – an overview, Water Science and Technology, 2004, 49, 31–40.
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW8-0009-0079