Profiling of bacterial community in a full-scale aerobic composting plant |
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| Affiliation: | 1. Department of Environmental Engineering, Yıldız Technical University, Davutpasa, Istanbul, Turkey;2. Istanbul Environmental Management Industry and Trading Company, Istanbul, Turkey;3. Department of Chemistry and Bioengineering, Tampere University of Technology, Tampere, Finland;1. Department of Plant and Animal Sciences, Dalhousie University, Faculty of Agriculture, Truro, Nova Scotia, Canada B2N 5E3;2. Department of Engineering, Dalhousie University, Faculty of Agriculture, Truro, Nova Scotia, Canada B2N 5E3;1. Laboratory for Agricultural Wastes Treatment and Recycling, Circular Agriculture Research Center, Jiangsu Academy of Agricultural Sciences, No. 50 Zhongling Street, Xuanwu District, Nanjing, Jiangsu Province 210014, China;2. Key Laboratory of Crop and Livestock Integrated Farming, Ministry of Agriculture, Nanjing, Jiangsu Province 210014, China;3. Nanjing Institute of Agricultural Sciences in Jiangsu Hilly Area, No.6 Xianyin South Road, Qixia District, Nanjing, Jiangsu Province 210046, China;1. Key Laboratory of Urbanization and Ecological Restoration of Shanghai, School of Ecology & Environmental Science, East China Normal University, Shanghai 200241, China;2. Shanghai Institute of Pollution Control and Ecological Security, Shanghai 200092, China;1. State Key Laboratory of Pulp and Paper Engineering, South China University of Technology, Guangzhou 510641, China;2. Guangdong Key Laboratory of Integrated Agro-environmental Pollution Control and Management, Guangdong Institute of Eco-environmental Science & Technology, Guangzhou 510650, China;3. College of Packaging and Materials Engineering, Hunan University of Technology, Zhuzhou 412007, China;4. Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China;1. College of Life Science, Northeast Agricultural University, Harbin 150030, China;2. Laboratory of Water Environmental System Engineering, Chinese Research Academy of Environmental Science, Beijing 100012, China;1. Laboratory of Soil and Environmental Microbiology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;2. Laboratory of Microbial Environmental Protection, Tropical Microbiology Unit, Center for International Education and Research of Agriculture, Faculty of Agriculture, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan;3. Laboratory of Molecular Gene Technology, Division of Systems Bioengineering, Department of Bioscience and Biotechnology, Faculty of Agriculture, Graduate School, Kyushu University, 6-10-1 Hakozaki, Higashi-ku, Fukuoka 812-8581, Japan |
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| Abstract: | Changes in temperature, pH, moisture, C/N ratio, and bacterial community were monitored in Istanbul full-scale composting plant. C/N ratio steadily decreased during composting and final mature compost products had a C/N ratio of less than 20. During the composting process, temperature was mostly above 55 °C and decreased to mesophilic conditions in the matured stages. Different types of bacteria were dominant in every stage of composting and bacterial diversity changed mainly by temperature. Bacillus species were dominant in early stages of composting while Acinetobacter and Sphingobacterium strains were detected in thermophilic and maturing stages. Bacteria were mainly active in the degradation of cellulose and toxic organics while some strains had denitrification ability. Generally, thermophilic stages were more rich in bacterial diversity than mesophilic and hyperthermophilic conditions significantly changed the bacterial community. |
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