期刊
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
卷 19, 期 7, 页码 6767-6780出版社
SPRINGER
DOI: 10.1007/s13762-021-03480-2
关键词
Centrifugal acceleration; Conventional reactors; Rotating packed bed reactor; Rotating spiral reactor; Rotating zigzag reactor; Reaction rate constant
资金
- RUSA 2 scheme of Jadavpur University
This study compared the reduction of hexavalent chromium by L-ascorbic acid in three novel rotating reactors, finding that the rotating spiral reactor achieved the maximum percentage reduction. Experimental results indicated that rotating reactors could significantly reduce the volume of conventional reactors.
Batch results on reduction of hexavalent chromium by L-ascorbic acid have been widely reported due to manifold advantages of the reductant. In this study, continuous flow experiments were performed in three novel rotating reactors (rotating packed bed, rotating zigzag bed, and rotating spiral bed reactor) wherein centrifugal force is known to enhance micro-mixing for intensifying the reduction rate of chromium vis-a-vis traditional reactors. A multi-regression model was used to relate the percentage reduction to the parameters studied (rotational speed, flow rate, concentration of the reactants, and pH). A mathematical model was also developed to estimate the reaction rate constant. Maximum percentage reduction was achieved in the rotating spiral reactor. Experimental results suggested that the volume of conventional reactors (continuous stirred tank reactor and fixed bed) could be significantly reduced by rotating ones.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据