Outstanding Paper Award Subcommittee of Kagaku Kogaku Ronbunshu has assessed the 90 papers published in volume 36 into 2010, and the editorial board finally selected the three papers for Kagaku Kogaku Ronbunshu Paper Awards of 2010; those are the papers on "Theoretical Analysis of Isolated Mixing Regions in Stirred Vessels," "Comparison of Mixing Performance Among Zigzag Microchannels," and "Studies on Operational Conditions for Single-Stage Nitrogen Removal Process using the Anammox Reaction."