- Potential Electron Donors- Bioremediation Microcosm and Laboratory Studies- Bioremediation of MTBE- Field Applications of Enhanced Reductive Dechlorination of Chlorinated Solvents- Aerobic/Anaerobic Mechanisms- Bioaugmentation and Biomonitoring- Cometabolic Processes- Phytoremediation.

- Aerobic Mechanisms- Biological Reductive Dechlorination Processes- bieaugmentation and Biomonitoring- Cometoblic Processes- Phytoremediation of Recalcitrant Organic Compounds.

The huge expansion of the chemical and petroleum industries in the twentieth century has resulted in the production of a vast array of chem ical compounds and materials that have transformed our lives. The associated large-scale manufacturing, processing and handling activi ties have caused a serious deterioration in environmental quality and created threats to human health. These negative impacts have led to responses and regulations requiring remedial action in support of envi ronmental sustainability. of biotechnological methods through bioremediation, Application has gained prominence as an option for soil remediation methods. Bioremediation is a multidisciplinary approach where biologists, chem ists, soil scientists and engineers work as team to develop and imple ment remediation processes. Bioremediation has now been used successfully to remediate many petroleum-contaminated sites. However, there are as yet no commercial technologies commonly used to reme diate the most recalcitrant contaminants. Nevertheless, bioremediation is a rapidly advancing field and new bio-based remedial technologies are continuing to emerge.

This authoritative text addresses the latest in bioremediation technologies for three difficult-to-treat contaminant groups: chlorinated solvents, PCBs, and PAHs - one of the most complex and expensive areas of applied remediation engineering. Bioremediation of Recalcitrant Compounds assesses innovative R&D projects developed for each contam

Healthy environment is important for any kind of biota on earth. It provides the basic elements of life such as clean water, fresh air, fertile soil and supports ecosystem of the food chain. Pollution drastically alters quality of the environment by changing the physico-chemical and biological aspects of these components. Accordingly, toxic metals, combustible and putrescible substances, hazardous wastes, explosives and petroleum products are all examples of inorganic and organic compounds that cause contaminations. Specifically, pollution of toxic and heavy metal in the environment is a growing problem worldwide, currently at an alarming rate. Toxic metals threaten the aquatic ecosystems, agriculture and ultimately human health. Traditional treatment techniques offer certain advantages such as rapid processing, ease of operation and control and flexibility. But, they could not maintain the quality of the environment due to the high operational costs of chemicals used, high energy consumption and handling costs for sludge disposal and overburden of chemical substances which irreversibly affect and destroy biodiversity, which ultimately render the soil useless as a medium for plant growth. Therefore, bioremediation and biotechnology, carried out by living assets to clean up, stabilize and restore contaminated ecosystems, have emerged as promising, environmental friendly and affordable approaches. Furthermore, the use of microbes, algae, transgenic plants and weeds adapted to stressful environments could be employed to enhance accumulation efficiency. Hence, sustainable and inexpensive processes are fast emerging as a viable alternative to conventional remediation methods, and will be most suitable for developing countries. In the current volume, we discuss pollution remediation challenges and how living organisms and the latest biotechnological techniques could be helpful in remediating the pollution in ecofriendly and sustainable ways.

Contains 817 documents, representing all platform talks and poster presentations given at the Conference. The slide files for most of the platform presentations are also included; a small number were ommitted by request of the speakers. The materials concern the the innovative application of existing or new technologies and apporaches to address the challanges of characterization, treatment, and monitoring of chlorinated and other recalcitrant compounds in various environmental media. The 13 parts of the proceedings correspond to the thematic areas covered by the program; characterization, monitoring, and risk assessment; site management and closure; green and sustainable remediation (GSR); chemical oxidation/reduction technologies; barrier technologies; sediments; vapor intrusion; metals detection, assessment and remediation, and other compound or site-specific topics.

This timely reference presents the state of the art of the emerging and rapidly changing field of bioremediation of chlorinated solvents, PCBs, and other chlorinated compounds, as well as PAHs, both in situ and on site. This landmark publication reports significant advances in bioremediation, with an emphasis on practical applications and state-of-the-art developments. Laboratory and field-oriented reviews are presented with the objective of tying treatability studies and recent laboratory developments to field applications. No other reference source gives you access to the most current techniques and methods for the bioremediation of chlorinated and polycyclic aromatic hydrocarbon compounds. This book represents the work of leading experts in the fields of in situ and on-site bioremediation from North America, Europe, and Asia. The chapters include current field applications and laboratory studies undertaken, in some cases, in countries with regulatory standards more stringent than those of the United States.

The pollution of soil and groundwater by harmful chemical compounds and heavy metals is becoming very serious in many countries. Although remediation is necessary as soon as possible, the performance of conventional bioremediation processes is not sufficient. This book deals with advances in bioremediation and phytoremediation processes by using excellent strains and a combination of processes. In the chapters of this book, the researchers have introduced the overall status of contamination; the characteristics of bioremediation using halobacteria, Candida yeast, and autochthonous bacteria; and phytoremediation using macrophytes. Moreover, other researchers introduced a process using biochar and electric currents, and this combination of processes and phytoremediation enhances the overall process.

This volume represents an excellent description of the hottest topics in the field of phyto- and rhizoremediation. The book shows especially the importance of cooperation between plant and microorganisms, there is practically no phytoremediation without rhizoremediation. Newest approaches based on methods of molecular biology and genetic engineering are described, as well as plant science achievements.

Bioremediation which is the use of living organisms such as plants (Phytoremediation) and microbes such as bacteria, algae and fungi (Microbial bioremediation) or their systems to treat the contaminants, is an efficient, eco-friendly and economical novel alternative to conventional treatment technologies. This book would serve to inculcate in the readers, the present status, feasibility, and the significance of microbial bioremediation. The various aspects of bioremediation like biodegradation of contaminants and pollutants, and bioconversion, including the genetics of microbial degradation have been comprehensively discussed, with precise diagrammatic representations which will make the reader appreciate the concepts without impediments.