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2. Comparison between up-and down flow anaerobic fixed film reactors of varying surface-to-volume ratios for the treatment of bean blanching waste;van den Berg,1979
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4. Anaerobic attached film expanded bed reactor treatment;Switzenbaum;Journal of the Water Pollution Control Federation,1980
5. Production of clean energy by anaerobic digestion of phytomass—new prospects, for a global warming amelioration technology;Abbasi;Renewable and Sustainable Energy Reviews,2010