Modern Age Environmental Problems and their Remediation


Book Description

This book presents a novel picture in current advances in research of theoretical and practical frameworks of environmental problems and solutions taken from the latest empirical research findings. The book deals with basic concepts and principles of process, modern biochemical and molecular approaches, genomics and metagenomics, proteomics, remediation strategies of various hazardous pollutants, microbial carbon sequestration and remediation, phytoremediation, bioleaching, biosorption, upscaling of systems, and considers the merit and demerits based on the current literature related to environmental problems and solutions. The book is aimed at professionals, researchers, academicians, and students who would like to improve their understanding of the strategic role of environment protection and advanced applied technologies at different levels. It will be useful for the experienced engineer or scientist working in the field.




Environmental Engineering for the 21st Century


Book Description

Environmental engineers support the well-being of people and the planet in areas where the two intersect. Over the decades the field has improved countless lives through innovative systems for delivering water, treating waste, and preventing and remediating pollution in air, water, and soil. These achievements are a testament to the multidisciplinary, pragmatic, systems-oriented approach that characterizes environmental engineering. Environmental Engineering for the 21st Century: Addressing Grand Challenges outlines the crucial role for environmental engineers in this period of dramatic growth and change. The report identifies five pressing challenges of the 21st century that environmental engineers are uniquely poised to help advance: sustainably supply food, water, and energy; curb climate change and adapt to its impacts; design a future without pollution and waste; create efficient, healthy, resilient cities; and foster informed decisions and actions.




Agrochemicals Detection, Treatment and Remediation


Book Description

Agrochemicals Detection, Treatment and Remediation focuses on the latest research surrounding the detection and remediation of a new generation of agrochemical contaminants. The book defines the occurrence, sources, types and effects of agrochemicals, including herbicides, insecticides, fungicides and soil fumigants in the environment. The book covers both advanced physical and chemical methods for the abatement of these emerging contaminants in environmental media. Environmental Engineers and Researchers will find this to be a valuable reference on advanced processes for resource recovery, including nanotechnology for the recovery of phosphate from fertilizer industry wastewater.




PESTICIDES IN THE ENVIRONMENT Impact, Assessment, and Remediation


Book Description

Pesticides in a Changing Environment: Impact, Assessment, and Remediation covers compounds that repel, kill or to prevent any pest. On the basis of the target killed, pesticides are mainly classified as herbicides, fungicides and insecticides. The increased demand of food on account of population explosion has compelled man to use pesticides for better crop production. However, there are many negative impacts of these chemical agrochemicals like toxicity to non-target organisms and retention in bio-systems in the form of their residues, leading to harmful effects on the food chain and food web.This book will be an important source of information for researchers and academicians working in the field of pesticide pollution, its physiology and biochemistry, and development of pesticide remediation technologies. - Assists readers in developing new strategies to address the issues related to sensing and remediation activities - Includes low cost materials for sensor and adsorbent development, allowing professionals to make decisions-based on economic considerations - Provides alternatives for the development of socioeconomically sustainable products for sensing and remediation application




Environmental Contamination and Remediation


Book Description

This book provides an account of the major environmental contaminations present today, and offers detailed insights into their potential remediation through bio-based solutions. Bringing together the work of various international experts in this field, it contains comprehensive reviews on the mechanisms of bioremediation. Moreover, the book discusses the strategies by which bacteria and plants help in the decontamination of environmental pollutants. As such, it represents a valuable resource for a wide audience, including environmental scientists, biochemists, soil scientists, botanists, agronomists and molecular biologists.




Contaminants of Emerging Concerns and Reigning Removal Technologies


Book Description

With an increased demand for wastewater reuse, groundwater recharge with treated wastewater has been practiced across the globe. As a result, groundwater quality deteriorates by emerging micropollutants from various anthropogenic origins, including untreated wastewater, seepage of landfill leachate, and runoff from agricultural lands. The fate of such emerging and geogenic contaminants in subsurface systems, especially in the groundwater, depends on several factors. Physicochemical properties of contaminants such as octanol-water partition coefficient, dissociation constant, water solubility, susceptibility to biodegradation under anaerobic conditions, and environmental persistence under diverse geological and pH conditions play a critical role during subsurface mass flow. Thus, advanced wastewater treatment techniques, followed by implementing stricter guidelines, are some of the measures that can safeguard water resources. This book, in general, gives an understanding of the fate and mitigation strategies for emerging and geogenic contaminants in the groundwater. The first and second sections provide a detailed insight into various removal techniques and mitigation approaches. Possible treatment strategies, including bioremediation and natural attenuation, are also covered in those sections. Environmental assessment, groundwater vulnerability, health effects, and regulations pertaining to various contaminants are systematically presented in the third section.




Commercial Surfactants for Remediation


Book Description

This book demonstrates the benefits of using commercially available surfactants, or surface-active agents, for remediation of metal-contaminated soil and sediment. First the book offers theoretical reviews of commercially available surfactants, then it proceeds to a study of various available surfactants for the mobilization of metals. Surfactants representative of amphiphiles discovered in the digestive environment of sediment-ingesting organisms are used to examine the extent and rate of metal (Al, Fe, Cd, Cu, Mn, Ni, Pb, Sn, Zn) mobilization from contaminated estuarine sediment. Metals can cause harmful effects to the environment and organisms. It is difficult to treat contaminants that are often tightly bound to the extremely small size of the estuarine sediments. The book also demonstrates the mechanisms of metal mobilization that appear to be related to complexation with monomers and adsorption to micelles of the anionic amphiphiles, and to the denudation of hydrophobic host phases or coatings on the sediment by micelles of both anionic and nonionic surfactants. Readers obtain a better understanding of current commercial surfactants, their impact on the environment, and possible remediation. This transdisciplinary book contributes toward Sustainable Development Goals numbers 6 (Clean Water and Sanitation) and 13 (Climate Action) set by the United Nations and is useful for students and teachers of sediment studies, coastal studies, environmental sciences, hydrology, civil engineering, and policy sciences.




Bio-organic Amendments for Heavy Metal Remediation


Book Description

Bio-organic Amendments for Heavy Metal Remediation: Water, soil and plant focuses on these core continuum media to explore remediation options using microbial, organic and combined approached. A volume in the Plant Biology, Sustainability and Climate Change series, this book offers a comprehensive view of techniques and approaches for addressing contamination by heavy metals.As anthropogenic activities increasingly negatively impact natural resources, there has been significant disturbance of water, soil, and plant continuum due to the accumulation of heavy metals. The bioaccumulation of heavy metals in the food chain could pose life-threatening effects on plants as well as humans, and there is need to find effective and sustainable remediation options. The application of bio-organic amendments could serve as a sustainable solution to this problem.Employing microbial, organic and combined approaches to reduce the accumulation of heavy metals in the food chain ultimately would lead to the production of safe food for humans.This book provides a comprehensive view of the challenge with a focus on the bioremediation of heavy metals contamination using ecotechnological approaches to protecting the soil, water and plant continuum. - Highlights remediation techniques/approaches for heavy metals under water, soil and plant continuums - Presents case-studies for real-world insights as well as current practices - Includes regulatory aspects for ensuring safe implementation




Nano-engineered Materials for Textile Waste Remediation


Book Description

This book presents a complete state of the art for different types of nanomaterial, their environmental fate, and their use in textile waste remediation. Nano-engineered materials including nanoparticles, nanofibers, nanotubes have been used extensively for a variety of applications. Environmental concerns have been noted mainly due to the discharge of textile waste. Nanotechnology is fast growing on research and bringing sustainable solution in minimizing the waste. This also minimizes the risk of exposure and health hazards. With the development of industry, environmental pollution and energy shortage have raised awareness of a potential global crisis. So, it is urgent to develop a simple and effective method to address these current issues. Nano-engineered materials can be better solution in finding solution of environmental sustainability more specific to the textile waste remediation. Nano-engineered materials have emerged as pioneering photocatalysts and account for most of the current research in this area. This can provide large surface areas, diverse morphologies, abundant surface states, and easy device modeling, all of which are properties beneficial to photodegradation. Furthermore, the stability and cost of nano-engineered materials are critical factors. Therefore, it is a challenge of great importance to identify and design nano-engineered materials that are efficient, stable, and abundant for the remediation of textile waste.​




Phytoremediation


Book Description

Phytoremediation: Biotechnological Strategies for Promoting Invigorating Environs focuses on phytoremediation's history, present and future potential, discussing mechanisms of remediation, different types of pollutant and polluted environs, cell signaling, biotechnology, and molecular biology, including site-directed DNA and the omics related to plant sciences. Sections focus on phytoremediation as an economically feasible and environmentally safe strategy, including its mechanisms from macroscopic to microscopic level, strategies of assisted phytoremediation, the role of omics on innovations on the field, the development of genetically modified plants (GMPs) to deal with pollutants, the future prospects of targeted genetic engineering in phytoremediation and remediation advantages and disadvantages. Other sections in the book explore the phytoremediation of specific environs (water and soil) and specific contaminants that are of major worldwide concern. - Presents phytoremediation mechanisms at a microscopic level (molecular mechanisms) - Covers remediation in different environs and in different kinds of pollutants - Conveys the economic aspects relating to phytoremediation