Characterization of organic matter degradation during composting of manure–straw mixtures spiked with tetracyclines

• Published in: Bioresource technology Vol. 102; no. 15; pp. 7329 - 7334
• Main Authors: Hu, Zhenhu, Liu, Yuanlu, Chen, Guowei, Gui, Xianyang, Chen, Tianhu, Zhan, Xinmin
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier Ltd 01.08.2011; Elsevier
• Subjects: Agronomy. Soil science and plant productions; analysis; Animals; Antibiotics; Applied sciences; Biodegradability; Biodegradation, Environmental; Biological and medical sciences; Biological treatment of sewage sludges and wastes; Biotechnology; chemistry; chlortetracycline; Composting; Degradation; Environment and pollution; Exact sciences and technology; Fourier transform infrared spectroscopy; Fundamental and applied biological sciences. Psychology; General agronomy. Plant production; hens; humification; Hydrogen-Ion Concentration; Industrial applications and implications. Economical aspects; Manure; Manure - analysis; Mineralization; organic matter; Oryza; Oryza - chemistry; Oryza sativa; oxytetracycline; pig manure; Pollution; polysaccharides; process monitoring; raw materials; rice straw; Soil; Soil - chemistry; Spectra; Spectroscopic analysis; Spectroscopy, Fourier Transform Infrared; Straw; Sus scrofa; Temperature; Tetracycline; Tetracyclines; Tetracyclines - analysis; Use of agricultural and forest wastes. Biomass use, bioconversion; Volatilization; Waste Products; Waste Products - analysis; Wastes; X-Ray Diffraction; Manure; Spectroscopic analysis; Composting; Antibiotics; Tetracycline; Degradation; Organic waste; Antibiotic; Organic matter; Spectroscopical observation; Straw
• ISSN: 0960-8524; 1873-2976; 1873-2976
• DOI: 10.1016/j.biortech.2011.05.003

► We investigated humification and mineralization of organic wastes during composting. ► More than 93% of tetracyclines was degraded during a 45-day composting. ► XRD spectra confirmed the natural formation of struvite during composting. ► Control the ammonia loss and fix soluble phosphorus during composting. The objective of this study was to investigate humification and mineralization of manure–straw mixtures contaminated by tetracyclines during composting. Hen manure, pig manure and rice straw were used as the raw materials. The manure–straw mixtures were spiked with tetracycline, chlortetracycline, and oxytetracycline at the concentration of 60mg/kg dry matter. The results show that tetracyclines had no obvious influence on the composting process and more than 93% of the tetracyclines was decreased during a 45-day composting. The Fourier transform infrared (FTIR) spectra indicated that easily biodegradable components such as aliphatic substrates, carbohydrates and polysaccharides were decomposed and the contents of aromatic components relatively rose during the composting. The X-ray diffraction (XRD) spectra confirmed the natural formation of struvite, the degradation of easily biodegradable components, and the mineralization of organic matter during the composting. Therefore, FTIR and XRD analysis can be useful tools for monitoring the composting process.