01653nam a2200217 a 450000100080000000500110000800800410001910000160006024501260007626001330020252009260033565000200126165000210128165000120130265300240131470000230133870000190136170000170138070000200139770000180141720455032017-02-22       2015    bl uuuu     u00u1 u    #d1 aPIROLLI, M.  aAssessment of hydrogen sulfide removal from biogas using a field scale anoxic biotrickling filter.h[electronic resource]  aIn: LATIN AMERICAN CONGRESS, 4., 2015, Florianópolis. Anais... Florianópolis: UFSC, 2015. Disponível on line. SOLABIAA.c2015  aHydrogen sulphide is one of the most toxic and corrosive compound present in swine-derived biogas streams.In this study, afield scale biotrickling filter for the removal of hydrogen sulfide was investigated.A Biofilter packed with supporting biofilm materials was fed continuously with a proprietary nutrient solution and operatedfor over 73days. The system has been operating with a H2S inlet concentrations ranging from 1,000to 3,000 ppm.Significant removal efficiencies &gt95% was demonstrated. pH of the stock feeding solution decreased from 6.2 to as low as 3.5within couple days.The resulting drop in pH provided circumstantial evidence to support biological H2 Soxidation to sulphuric acid by sulfide-oxidizers. Sulfur precipitation was also observed to occur. The results suggested that H2S removal from biogas stream can be efficiently achieved using portable, low cost and maintenance free biotrickling filters.  adesulfurization  ahydrogen sulfide  aBiogás  aBiotrickling filter1 aSILVA, M. L. B. da1 aMEZZARI, M. P.1 aMICHELON, W.1 aPRANDINI, J. M.1 aSOARES, H. M.