Fixed Film Reactors In Wastewater Treatment

Our rivers and lakes are continuously self-purifying thanks to algal and bacterial biofilms that grow over the surface of stones and other debris. This same process has been employed for over a century to treat our municipal and industrial wastewater in specially designed fixed film reactors that maximize this microbial activity by providing ideal growth conditions and unlimited food and oxygen. Fixed film, or attached biofilm, reactors are unique in their ability to treat complex wastewaters and shock loadings; using far less energy than other wastewater treatment processes such as activated sludge, making them a sustainable treatment option.Targeted at undergraduate and postgraduate engineers and scientists, this book follows the structure of bestseller Biology of Wastewater Treatment. This volume gives an expanded and up-to-date overview of the use of fixed-film reactors in wastewater treatment with content spanning from biofilm formation, to traditional trickling filters and rotating biological contactor technology, advanced submerged systems (including MBBRs and IFAS) and their key role in the treatment of contaminated air, and finally to nitrogen removal employing new microbial pathways such as Anammox. This monograph emphasizes the biological aspects of the processes.

Our rivers and lakes are continuously self-purifying thanks to algal and bacterial biofilms that grow over the surface of stones and other debris. This same process has been employed for over a century to treat our municipal and industrial wastewater in specially designed fixed film reactors that maximize this microbial activity by providing ideal growth conditions and unlimited food and oxygen. Fixed film, or attached biofilm, reactors are unique in their ability to treat complex wastewaters and shock loadings; using far less energy than other wastewater treatment processes such as activated sludge, making them a sustainable treatment option.This new book, based on a chapter from the bestseller Biology of Wastewater Treatment, gives an expanded and up-to-date overview of the use of fixed film reactors in wastewater treatment. This volume's content spans from biofilm formation, through traditional trickling filters and rotating biological contactor technology, advanced submerged systems including MBBRs and IFAS, their key role in the treatment of contaminated air, and finally to nitrogen removal employing new microbial pathways such as Anammox. The monograph emphasizes the biological aspects of the processes that will also be of interest to engineers.The book is aimed equally at engineers and scientists at both the undergraduate and postgraduate level, who will find it accessible and easy to understand. It will also be a useful reference for practitioners.

Waste handling, Water treatment, Waterworks, Sewage treatment works, Performance, Biological filters, Filters

The latest Methods for Wastewater Treatment Using Fixed-Film Processes This Water Environment Federation resource provides complete coverage of pure fixed-film and hybrid treatment systems, along with details on their design, performance, and operational issues. Biofilm Reactors discusses factors that affect the design of the various processes, appropriate design criteria and procedures, modeling techniques, equipment requirements, and construction methods. Operational issues associated with each type of process are presented, including potential problems and corrective actions. Real-world case studies illustrate the application of the technologies presented in this authoritative volume. Biofilm Reactors covers: Biology of fixed-film processes Trickling filter and combined trickling filter suspended-growth process design and operation Rotating biological contactors Moving-bed biofilm reactors Hybrid processes Biological filters New and emerging fixed-film technologies Clarification Effluent filtration Development and application of models for integrated fixed-film activated sludge, moving-bed reactors, biological aerated filters, and trickling filters

The purpose of this state-of-the-art publication is to provide up-to-date and pertinent scientific information concerning immobilized cell processes for treatment of wastewater. It comprehensively reviews and examines essential data on the feasibility of various immobilization methods, with special reference to wastewater treatment. It also discusses methods of identification of structure and composition of microbial aggregates and analytical methods for the estimation of biomass in the presence of carriers. This work reports the novel process of immobilized microalgae and cyanobacteria for wastewater treatment, while highlighting their future prospects. Additionally, it critically reviews the various fixed film bioreactor configurations. This book is a must for all engineers, planners, scientists, students and sewage treatment plant operators.

Over the past two decades, the use of microbes to remove pollutants from contaminated air streams has become a widely accepted and efficient alternative to the classical physical and chemical treatment technologies. This book focuses on biotechnological alternatives, looking at both the optimization of bioreactors and the development of cleaner biofuels. It is the first reference work to give a broad overview of bioprocesses for the mitigation of air pollution. Essential reading for researchers and students in environmental engineering, biotechnology, and applied microbiology, and industrial and governmental researchers.