Antibiotic Degradation in Manure by Composting and Laccase Oxidation 611 Z. Su1,2, H. Fan1,2, N. Ma1,2, J. Petersen1,2 1Sino-Danish Center for Education and Research, Beijing, China 2DTU Chemical Engineering, Technical University of Denmark, Lyngby, Denmark INTRODUCTION All Large amounts of antibiotic agents are being used in animal husbandry and aquaculture. Thus also high quantities of residual antibiotics are found in farm animal excrement which might then threaten the diversity of microorganisms in the ecosystem if the manure is released directly to the environment. Thus attention and research has been drawn in regards to find a method to degenerate the antibiotics. THEORY Composting has been demonstrated to be an effective and green way in order to degrade antibiotics in manure. Since solid-liquid mixed manure is not suitable for aerobic composting, the liquid part is treated by laccase which is widely used in the degradation and removal of antibiotics due to its effective oxidation ability in liquid. METHOD AND RESULTS A lab scale low pressure fermenter is designed and manufactured for the aerobic composting under manually control. A simulation antibiotics solution with laccase was treated under various reaction conditions. Initial and residue concentration of the samples were tested in order to determine the performance pattern for compost and laccase degradation. FURTHER WORK - Analysis of the results from the composting and laccase oxidation. - Determination of the most efficient parallel treatment of degradation of antibiotics in solid and liquid excrement. - Proposal of a large scale treating process for practical application. - Determination of modifications needed to be implemented in regards to the scale up for the process. ENVIRONMENTAL PROBLEMS & SOLUTIONS POSTER CONCEPT MASTER LEVEL COURSE/PROJECT
Grøn Dyst 2016
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