Composition analysis of dental solid waste in Brazil |
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| Authors: | Cristina Dutra Vieira Maria Auxiliadora Roque de Carvalho Noil Amorim de Menezes Cussiol Maria Eugênia Alvarez-Leite Simone Gonçalves dos Santos Renata Maria da Fonseca Gomes Marcos Xavier Silva Luiz de Macêdo Farias |
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| Institution: | 1. Biological Chemistry Department, University of Michigan, Ann Arbor, MI 48109-0600, USA;2. Biochemistry Undergraduate Program, University of Michigan, Ann Arbor, MI 48109-0600, USA;3. Biological Cellulare e Moleculare, Università di Cagliari-Monserrato, 09042 Monserrato, Cagliari, Italy;4. Dipartimento di Biologia Sperimentale, Sezione di Fisiologia Generale, Università di Cagliari-Monserrato, 09042 Monserrato, Cagliari, Italy;5. Visiting Professor Program, Università di Cagliari-Monserrato, 09042 Monserrato, Cagliari, Italy;1. Solid State Physics and Accelerators Department, National Centre for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), Cairo, Egypt;2. Radiation Chemistry Department, National Centre for Radiation Research and Technology (NCRRT), Atomic Energy Authority (AEA), Cairo, Egypt;1. National Institute of Environmental Research, Environmental Research Complex, Gyeongseodong Seogu, Incheon 404-708, Republic of Korea;2. Institute of Environmental and Energy Technology, Pohang University of Science and Technology, Hyojadong, Namgu, Pohang 790-784, Republic of Korea;3. Korea LPG Association, Bangbaedong, Suchogu, Seoul 137-060, Republic of Korea;4. Institute for Technical Chemistry, Karlsruhe Institute of Technology, D-76344 Karlsruhe, Germany;1. Department of General and Transplantation Surgery, Medical University of Warsaw, Warsaw, Poland;2. Department of Transplantation Medicine and Nephrology, Medical University of Warsaw, Warsaw, Poland;1. Key Laboratory for Thermal Science and Power Engineering of Ministry of Education, Department of Thermal Engineering, Tsinghua University, Beijing 100084, China;2. Chengde Petroleum College, Chengde 067000, China;3. College of Environmental Science and Engineering, Peking University, Beijing 100871, China |
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| Abstract: | When developing proper waste management strategies, it is essential to characterize the volume and composition of solid waste. The aim of this work was to evaluate the composition of dental waste produced by three dental health services in Belo Horizonte, Minas Gerais State, Brazil. Two universities, one public and one private, and one public dental health service were selected. Waste collection took place from March to November 2007. During this period, three samples were collected from each dental health service. The total amount of dental waste produced in one day of dental work was manually separated into three categories: infectious and potentially infectious waste, accounting for 24.3% of the total waste; non-infectious waste, accounting for 48.1%; and domestic-type waste, accounting for 27.6% (percentages are for mean weights of solid waste). Our results showed that most of the waste considered as biomedical may be misclassified, consequently making the infectious waste amount appear much larger. In addition, our results suggest that the best waste minimization method is recycling, and they help to define an appropriate waste management system in all three of the dental health services involved in this study. |
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