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INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 1 2003 Note S6 Kinetic Study of Batch Biodegradation of Diapers Rosa M. Espinosa∗ Irma Delfin-AlcalᆠSylvie Turpin‡ Jose Luis Contreras∗∗ ´ ∗Universidad Autonoma Metropolitana-Azcapotzalco, rmev@correo.azc.uam.mx †Universidad Nacional Autonoma de México, dai@correo.azc.uam.mx ‡UAM-A, stm@correo.azc.uam.mx ∗∗Universidad Autonoma Metropolitana-Azcapotzalco, jlcontre@internet.com.mx ISSN 1542-6580 Copyright c©2003 by the authors. All rights reserved. Kinetic Study of Batch Biodegradation of Diapers Rosa

interest and importance with impact to nature protection (Diaz, 2004; Quintelas et al., 2006; Alexieva et al., 2008; Hristov et al., 2010). Many treatment techniques have been em- ployed in the past few years to reduce the con- centration of phenol in the environment, includ- ing biodegradation, adsorption, ion exchange, and the use of bioactive activated carbon (Pathade et al., 2001). Biological treatment has proven to be the most promising and effective method for the removal of phenol from waste water, leading to complete mineralization of phenol within a wide

Biodegradation, 39: 45–53. Bonnarme, P., Jeffries, T.W. 1990. Mn(II) regulation of lignin peroxidases and manganese-dependent peroxidases from lignin-degrading white rot fungi. Applied Environmental Microbiology, 56: 210–217. Claus, H. 2013 Microbial degradation of 2,4,6-Trinitrotoluene in vitro and in natural environments. Environmental science and engineering biological remediation of explosive residues. Environmental Science and Engineering, 15–38. Cvancarova, M., Kfesinova, Z.,Filipova, A., Covino, S., Cajthami, T. 2012. Biodegradation of PCBs by ligninolytic fungi and

[1] Adams D.J., Van Komen J. & Pickett T.M. 2001. Biological cyanide degradation, pp. 203–213. In: Young C. (ed.), Cyanide: Social, Industrial and Economic Aspects. The Metals Society, Warrendale. [2] Adjei M.D. & Ohta Y. 1999. Isolation and characterization of a cyanide-utilizing Burkholderia cepacia strain. World J. Microbiol. Biotechnol. 15: 699–704. http://dx.doi.org/10.1023/A:1008924032039 [3] Adjei M.D. & Ohta Y. 2000. Factors affecting the biodegradation of cyanide by Burkholderia cepacia strain C-3. J. Biosci. Bioeng. 89: 274–277. http://dx.doi.org/10

INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING Volume 6 2008 Article A8 Biodegradation of High Phenol Concentration in a Membrane Bioreactor Benoı̂t Marrot∗ Adrian Barrios-Martinez† Philippe Moulin‡ Nicolas Roche∗∗ ∗Université Paul Cézanne d’Aix-Marseille, benoit.marrot@univ-cezanne.fr †Université Paul Cézanne d’Aix-Marseille, adrian.barrios-martinez@univ.u-3mrs.fr ‡Université Paul Cézanne d’Aix-Marseille, philippe.moulin@univ-cezanne.fr ∗∗Université Paul Cézanne d’Aix-Marseille, nicolas.roche@univ-cezanne.fr ISSN 1542-6580 Biodegradation of High

PRINTING Nordic Pulp & Paper Research Journal Vol 32 2017 no (2) 289 Biodegradation of thermochromic offset prints Marina Vukoje, Mirela Rožić, Snežana Miljanić, Suzana Pasanec Preprotić KEYWORDS: Thermochromic offset ink, Biodegradation, Synthetic paper, Recycled paper, SEM, FTIR ABSTRACT: In this study, biodegradability aspect of thermochromic leuco dye print on two different paper materials were studied using the soil burial test under anaerobic conditions. Printed paper samples were evaluated for changes by visual examination, weight loss

, K., Heimowska, A. & Steinka, I. (2002). Wpływ modyfi kacji poli(ε-kaprolaktonu) na jego biodegradację w warunkach naturalnych. Polimery(Warsaw) 47(4), 262-268. (in Polish) 10. Rutkowska, M., Krasowska, K., Heimowska, A., Steinka, I., Janik, H., Haponiuk, J. & Karlsson, S. (2002). Biodegradation of Modifi ed Poly(ε-caprolactone) in Different Environments. Pol. J. Environ. Stud. 11(4), 413-420. 11. Banerjee, A., Chatterjee, K. & Madras, G. (2014). Enzymatic dgradation of polymers: a brief rewiew. Mater. Sci. Technol. 30(5), 567-573. DOI: 10.1179/1743284713Y

Biodegradation of bottom sediments of Turawa Lake

In this work we tested biopreparations developed in our laboratory for their ability to degrade the organic matter of the bottom sediments of Turawa Lake. The biodegradation was conducted under laboratory conditions for 6 weeks. For the testing purposes, there were three variants of biopreparations that contained autochthonous strains originating from our own collection and their mixture. The testing showed that the introduction of the biopreparations to the bottom sediment resulted in a significant increase of the number of bacteria, which consequently brought about the reduction of organic compounds in the sediment. In the case of all the variants, the number of bacteria increased by order of 102 - 104 CFU/g after 42 days of biodegradation. Among the tested biopreparations, the most effective one was the mixture of the autochthonous strains and those originating from the collection. After biopreparation was applied, a drop of content of carbohydrates by 66.94%, fatty matter by 83.33% and proteins by 74.42% was noted.

polychlorinated biphenyls, Applied Environmental and Public Health Microbiology , 35, 223-227. 7. Jong-Chan C., Eunheui K., Sang-Ho P. and Chi-Kyung K., 2000 – Catabolic Degradation of 4-Chlorobiphenyl by Pseudomonas sp. DJ-12 via Consecutive Reaction of meta-cleavage and hydrolytic dechlorination, Biotechnology and Bioprocess Engineering , 5, 6, 449-455. 8. Masse R., Messier R., Peloquin L., Ayotte C. and Sylvestre M., 1984 – Microbial biodegradation of 4-chlorobiphenyl, a model compound of chlorinated biphenyls, Applied Environmental and Public Health Microbiology , 47

Abstract

The research deals with biodegradation of films prepared from polyvinylpyrrolidone and polylactic acid (PVP/PLA). Biodegradation of PVP/PLA films was supported by the following additives: 1-methyl-2-pyrrolidone, 1-octyl-2-pyrrolidone, acrylamide and N-acetyl-L-phenylalanine according to the previous study. The films were prepared by a solvent casting technique. Biodegradation was observed using the respirometric method in different environments. The films subjected to biodegradation were analyzed by scanning electron microscopy and Fourier transform infrared spectroscopy. It was found that the films are substantially degraded, but not in the biological way; PVP was quickly removed in presence of water because of its easy solubility. In contrast, this fact could support biodegradation of PLA, which becomes more available for microorganisms when PVP leaves PLA matrix.