By N M Chakarbarty

        Waste product is considered as an out of place resource, which otherwise means waste is money. With industrialization and urbanization, the waste generation overshoots the capacity of natural processes and turns out to be the society which are available for waste treatment.

        The technology selection depends on its cost and utility. The final product may not necessarily be directly useless to man, but it can serve to enhance agricultural production, in aquaculture or as poultry feed etc.

        The book sewage fed Aquaculture form Dr Chakrabarty examines the role of this appropriate technology for making money through sewage fed aquaculture and is able to convince readers through facts and figures, examples, case studies and photographs on the merits of the not so novel scientific inputs in this field.

        Waste water treatment for recovery of nutrients and its utilization in aquaculture assumes importance from economic point of view as well.

        The author examines the merits of modified methods through aquatic plant cultivation which eliminates heavy metals, pesticides, pathogenic bacteria etc. before the nutrients in waste are used for aquaculture and agriculture so that it is not harmful  to man in the ultimate end use.

                                    This book, no doubt is useful to students and public health engineers.