Recent Advances On Nitrification And Denitrification

Nitrification and denitrification are essential processes for the aquatic ecological system and vital for human health. While ammonia is applied for disinfection together with chlorine to produce chloramine, excessive ammonia may cause nitrification and bacteria growth in the water transmission pipeline. Since excessive discharge may cause eutrophication and deterioration of the aquatic system, nitrate is regulated for wastewater discharge in sensitive areas. Further, nitrate needs to be monitored and controlled in drinking water treatment to protect against methemoglobinemia in bottle-fed infants. Various conventional technologies exist, such as adsorption, ion exchange, photocatalytic oxidation, air stripping, biological nitrification and denitrification, and so on, to remove nitrogenous compounds from water. Since ammonia and nitrate are important constituents in fertilizers besides phosphorus (P) and potassium (K), nutrient recovery is drawing attention to maintaining the supply of reliable and sustainable fertilizers. This book provides a comprehensive overview of nitrification and denitrification.

A numerical simulation is a computing calculation following a program that develops a mathematical model for a physical, social, economic, or biological system. Numerical simulations are required for analyzing and studying the behavior of systems whose mathematical models are very complex, as in the case of nonlinear systems. Capturing the resulting uncertainty of models based on uncertain parameters and constraints in confidence intervals (1-D), or more generally (>1-D) confidence regions, is very common for expressing to which degree the computed result is believed to be consistent with possible values of the targeted observable. This book examines the different methods used in numerical simulations, including adaptive and stochastic methods as well as finite element analysis research. This work is accompanied by studies of confidence regions, often utilized to express the credibility of such calculations and simulations.

This book presents recent developments in the field of environmental biotechnology. Three major forces are currently driving this discipline: the exploration of microbial diversity by genetic and genomic tools, the ongoing progress in the modelling of various transient phenomena, and environmental biotechnology. This book provides a state-of-art-overview of developments in the field of environmental biotechnology concerning exploration, implementation, modelling, economic development and safety. It comprises selected, peer-reviewed papers that were presented at the European Symposium on Environmental Biotechnology (ESEB) 2004, held in Oostende, Belgium, April 2004.

This volume presents select papers presented during the Second International Conference on Waste Management held at IIT Guwahati. The book comprises of eight sections, and deals with various technologies associated with curbing of different environmental issues as well as management and legislative policies associated with them. This book will be of interest to various researchers, students, policy makers and people who pursue keen interest in the waste management techniques and policies.

Current Developments in Biotechnology and Bioengineering: Advanced Membrane Separation Processes for Sustainable Water and Wastewater Management – Aerobic Membrane Bioreactor Processes and Technologies consolidates up-to-date research developments in AeMBR systems for wastewater treatments in terms of membrane materials and decorations, reactor designs and fouling mechanisms. It includes discussions on developments in AeMBR research on energy efficiency and fouling control strategies, gaps, future research and application perspectives. This book is a potential resource for membrane separation and AeMBR practitioners, engineers, scientists, educators and students, and public to understand the latest developments and future prospects in membrane technology. Provides the latest comprehensive review in various important aspects of AeMBR Consolidates scattered AeMBR information into a single easily assessible resource Provides state-of-the-art technology development of membrane separation, AeMBR reactor designs, membrane development, advantages and challenges in operational implementation and their appropriate control strategies Presents a comprehensive review on Quorum Quenching (QQ) fouling control strategy, QQ benefits and drawbacks Provides an excellent resource on the latest techniques in characterizing and understanding fouling mechanisms

Published since 1959, Advances in Applied Microbiology continues to be one of the most widely read and authoritative review sources in microbiology. The series contains comprehensive reviews of the most current research in applied microbiology. Recent areas covered include bacterial diversity in the human gut, protozoan grazing of freshwater biofilms, metals in yeast fermentation processes and the interpretation of host-pathogen dialogue through microarrays. Eclectic volumes are supplemented by thematic volumes on various topics, including Archaea and sick building syndrome. Impact factor for 2009: 1.860. Contributions from leading authorities Informs and updates on all the latest developments in the field Reference and guide for scientists and specialists involved in advancements in applied microbiology

Genomics Approach to Bioremediation Provides insights into the various aspects of microbial genomics and biotechnology for environmental cleanup In recent years, the application of genomics to biodegradation and bioremediation research has led to a better understanding of the metabolic capabilities of microorganisms, their interactions with hazardous and toxic chemical compounds, and their adaptability to changing environmental conditions. Genomics Approach to Bioremediation: Principles, Tools, and Emerging Technologies provides comprehensive and up-to-date information on cutting-edge technologies and approaches in bioremediation and biodegradation of environmental pollutants. Edited by prominent researchers in the field, this authoritative reference examines advanced genomics technologies, next-generation sequencing (NGS), and state-of-the-art bioinformatics tools while offering valuable insights into the unique functional attributes of different microbial communities and their impact on the removal of chemical contaminants. Each chapter includes numerous high-quality illustrations, detailed tables, extensive references, and step-by-step descriptions of various microbial metabolic pathways of degradation and biotransformation of environments containing various inorganic, metallic, organometallic, and organic hydrocarbon contaminants. • Describes methodologies and underlying theory for the remediation, detoxification, and degradation of contaminated environments • Covers new genomics technologies that address nutrient removal, resource recovery, and other major trends in environmental cleanup • Highlights recent advances in microbial biotechnological approaches including the latest description of the relationship between microbes and the environment focusing on their impact on ecosystem services. • Offers perspectives on energy saving, production, sustainability, and community involvement • Discusses current challenges and future directions in the field of bioremediation Genomics Approach to Bioremediation: Principles, Tools, and Emerging Technologies is an essential resource for biochemical and environmental engineers, environmental microbiologists, academic researchers, process and treatment plant managers, policymakers, and industry professionals working in the areas of microbial degradation, bioremediation, and phytoremediation.