Page 13 - Industrial Wastewater Treatment, Recycling and Reuse

xii Preface

exchange processes, coagulation/formulations, membrane separations, cav-
itation, and biological methods, in isolation and in combination. Emphasis is
given to industrial applications and the removal of pollutants in wastewater
treatment. Advanced computational tools and modeling methodologies
have tremendous potential for optimizing industrial wastewater treatment
(see, for example, a recent Indo-EU collaborative project on advanced tools
for water treatment [www.newindigo-atwat.com for more details]). Some
aspects of these advanced tools are covered in this book. More recently,
wastewater has also been viewed as a renewable source for production of
various useful products and energy. A sustainable hybrid wastewater treat-
ment methodology, capable of removing multiple and refractory pollutants
along with renewable energy generation, has immense potential in future
industrial operations. This book attempts to focus on these and other aspects
to realize environmentally benign and globally competitive processes and
technologies.
The material in this book has been arranged in four areas, encompassing
physico-chemical methods of treatment including advanced oxidation
processes (Chapters 1–5); biological treatment, adsorbents derived from bio-
mass, and advanced membrane separations (Chapters 6–11); process simula-
tions for water optimization (Chapter 12); and finally, some case studies on
zero liquid discharge solutions (Chapter 13) and some comments on future
directions in this area (Chapter 14). An attempt is made to evolve general
guidelines that will be useful for solving practical issues in industrial waste-
water treatment, recycling, and reuse.
Chapter 1 provides an overview and outlines the current scenario on water
consumption and strategies for water treatment and reviews various methods
of treatment to develop the theme of wastewater treatment, recycling, and
reuse. Chapter 2 provides detailed information on various physico-chemical
methods of treatment and highlights how effectively these methods can be
applied to real-life situations with specific examples of industry sectors.
Chapter 3 elaborates the theme and application of hydrodynamic cavitation
and advanced oxidation process in wastewater treatment. Chapters 4 and 5
both discuss the application of advanced oxidation processes in industrial
practice.
Chapter 6 describes reuse of wastewater for harnessing bioenergy—an
approach that represents a paradigm shift in conventional wastewater treat-
ment. Overview of the urban water scenario, treatment methods, and
potential for reuse in the industrial setup are presented in Chapter 7.
Chapter 8 presents the philosophy of new material developments (derived