Kannan Pakshirajan

Bio: Kannan Pakshirajan is an academic researcher from Indian Institute of Technology Guwahati. The author has contributed to research in topics: Bioreactor & Wastewater. The author has an hindex of 37, co-authored 190 publications receiving 4459 citations. Previous affiliations of Kannan Pakshirajan include National University of Ireland, Galway & Indian Institute of Technology Madras.

Membrane bioreactor and integrated membrane bioreactor systems for micropollutant removal from wastewater: A review

Abstract: Over the last few decades, the presence of micropollutants in the wastewater stream is imposing a serious concern worldwide. Membrane bioreactor (MBR) technology has been widely employed for the treatment of wastewater contaminated with micropollutants. Hence, the aim of this paper is to provide a consolidate review on the present state of research and advancement in MBR technology along with its augmentation with other wastewater treatment technologies for micropollutant removal, sustainability, and operating cost assessment for its feasibility. The potential application of MBR and hybrid-MBR systems in micropollutant removal along with the fate, removal mechanism, various factors affecting the MBR system efficiency and the operational cost involved were also been discussed in detail. Further, based on the available technologies on MBR, the authors discussed the future research perspective for micropollutant removal from the effluent stream with an objective of the circular economy.

The Design and Analysis of Experiments

Abstract: THE DESIGN AND ANALYSIS OF EXPERIMENTS. By Oscar Kempthorne. New York, John Wiley and Sons, Inc., 1952. 631 pp. $8.50. This book by a teacher of statistics (as well as a consultant for \"experimenters\") is a comprehensive study of the philosophical background for the statistical design of experiment. It is necessary to have some facility with algebraic notation and manipulation to be able to use the volume intelligently. The problems are presented from the theoretical point of view, without such practical examples as would be helpful for those not acquainted with mathematics. The mathematical justification for the techniques is given. As a somewhat advanced treatment of the design and analysis of experiments, this volume will be interesting and helpful for many who approach statistics theoretically as well as practically. With emphasis on the \"why,\" and with description given broadly, the author relates the subject matter to the general theory of statistics and to the general problem of experimental inference. MARGARET J. ROBERTSON

Kirk-Othmer Encyclopedia of Chemical Technology数据库介绍及实例

Abstract: 介绍了Kirk—Othmer Encyclopedia of Chemical Technology（化工技术百科全书）（第五版）电子图书网络版数据库，并对该数据库使用方法和检索途径作出了说明，且结合实例简单地介绍了该数据库的检索方法。

Microbial Degradation of Petroleum Hydrocarbon Contaminants: An Overview

Abstract: One of the major environmental problems today is hydrocarbon contamination resulting from the activities related to the petrochemical industry. Accidental releases of petroleum products are of particular concern in the environment. Hydrocarbon components have been known to belong to the family of carcinogens and neurotoxic organic pollutants. Currently accepted disposal methods of incineration or burial insecure landfills can become prohibitively expensive when amounts of contaminants are large. Mechanical and chemical methods generally used to remove hydrocarbons from contaminated sites have limited effectiveness and can be expensive. Bioremediation is the promising technology for the treatment of these contaminated sites since it is cost-effective and will lead to complete mineralization. Bioremediation functions basically on biodegradation, which may refer to complete mineralization of organic contaminants into carbon dioxide, water, inorganic compounds, and cell protein or transformation of complex organic contaminants to other simpler organic compounds by biological agents like microorganisms. Many indigenous microorganisms in water and soil are capable of degrading hydrocarbon contaminants. This paper presents an updated overview of petroleum hydrocarbon degradation by microorganisms under different ecosystems.