CONTENTS Foreword v Preface vii Acknowledgements ix 1Biofuels 1 A. K. Agarwal 2 Bioethanol production from lignocellulosics: an overview 53 R. C. Kuhad, R. Gupta, and Y. P. Khasa 3 Bioethanol: a status review on metabolic pathway modification of certain ethanologenic bacteria through genetic engineering 107 S. Lal, S. Patle, J. Kurian, and Ramanjaneya V. R. Mula 4 Bioethanol production technologies: economics, environmental impact, and policy issues 137 K. L. Kadam 5 Bio-hydrogen: applications and future prospects 165 P. M. Sarma and B. Lal 6 Methanogenesis from agro-industrial residues: potential and prospects 187 D. Somayaji 7 Biomass-gasifier-based decentralized energy solutions: technology, potential, problems, and research 213 S. Dhingra 8 Industrial solid waste 233 S. Pandey 9 Coal-bed methane 263 M. Lavania and B. Lal 10 Bioreactors for waste water treatment 297 K. Ramasamy and P. Doraisamy 11Ceramic membrane filters from waste fly ash and their applications 329 M. Balakrishnan and V. S. Batra 12 Technological options for municipal solid waste management 341 R. Johri, K. V. Rajeshivari, and A. N. Mullick 13 Technology trends and opportunities in cogeneration 379 P. K. Dadhich 14 Environmental regulations for waste management in India 439 Sandeep Sbrivastava Index 453 About the editors 459