Author: Sang-Jun Kim
Publisher:
ISBN:
Category : Bioremediation
Languages : en
Pages :
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Book Description
Abstract: EPTC (s-ethyl-N, N'-dipropylthiocarbamate) and atrazine (2-chloro-4-ethylamino-6-isopropylamino-1,3,5-triazine) are commonly used herbicides. Atrazine, especially, can be found in soils and waters at unacceptable concentrations. Developing an effective inoculum to bioaugment degradation of EPTC and atrazine in contaminated environments is required for bioremediation of such sites. Microorganisms capable of EPTC or atrazine degradation were directly enriched in soils (hereafter called ACTIVATED soils). The most probable number method revealed that the number of EPTC-degraders in a Brookston soil increased by about 3 logs of magnitude after a single treatment with EPTC at a rate of 20 mg/kg soil. In a Wooster soil, microorganisms utilizing atrazine as their sole carbon or nitrogen source increased by 3 logs and 1 log of magnitude, respectively, after three treatments of atrazine at a rate of 4 mg/kg soil. EPTC or atrazine degradation in these ACTIVATED soils was greatly accelerated after the first treatment, and degradation activity was not inhibited at initial concentrations up to 2000 mg EPTC/kg and 400 mg atrazine/kg soil, respectively. Inoculation of EPTC (20 mg/kg)- or atrazine (4 mg/kg)-contaminated soils with ACTIVATED soil, at rates ranging from 0.05 to 5% (w/w), resulted in significantly (p
Author: Hans F. Stroo
Publisher: Springer Science & Business Media
ISBN: 1461441145
Category : Technology & Engineering
Languages : en
Pages : 421
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Book Description
This volume provides a review of the past 10 to 15 years of intensive research, development and demonstrations that have been on the forefront of developing bioaugmentation into a viable remedial technology. This volume provides both a primer on the basic microbial processes involved in bioaugmentation, as well as a thorough summary of the methodology for implementing the technology. This reference volume will serve as a valuable resource for environmental remediation professionals who seek to understand, evaluate, and implement bioaugmentation.
Author: Ajay Singh
Publisher: Springer Science & Business Media
ISBN: 3662057948
Category : Nature
Languages : en
Pages : 312
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Book Description
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.
Author: Inamuddin
Publisher: CRC Press
ISBN: 1000600564
Category : Science
Languages : en
Pages : 183
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Book Description
It has been observed that rapid population expansion has raised the amount of anthropogenic activity, resulting in high levels of pollution in water, air, and solid waste as well as an increase in the pressure placed on agricultural lands. Bioaugmentation Techniques and Applications in Remediation provides detailed information on bioaugmentation approaches for the remediation of sediments, water, and soil polluted with organic and inorganic pollutants. Practical applications of bioaugmentation techniques performed in restricted systems under controlled conditions, laboratory investigations, and in the field are addressed. Special emphasis is placed on the applications of nanomaterials in combination with bioaugmentation techniques for enhanced bioremediation efficiency. FEATURES Explores abiotic and biotic factors that enhance and facilitate environmental remediation of contaminants Provides a primer on the elementary microbial processes entailed in bioaugmentation Summarizes methods and approaches for executing bioaugmentation technology Details commercially available products and instrumentation This book is an ideal resource for researchers, students, and engineers working in materials science and bioremediation.
Author: Michael A. Cole
Publisher:
ISBN:
Category : Soil protection
Languages : en
Pages : 58
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Book Description
Author: Václav Sasek
Publisher: Springer Science & Business Media
ISBN: 9401001316
Category : Science
Languages : en
Pages : 411
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Book Description
Traditional reliance on chemical analysis to understand the direction and extent of treatment in a bioremediation process has been found to be inadequate. Whereas the goal of bioremediation is toxicity reduction, few direct, reliable measures of this process are as yet available. Another area of intense discussion is the assessment of market forces contributing to the acceptability of bioremediation. Finally, another important component is a series of lectures and lively exchanges devoted to practical applications of different bioremediation technologies. The range of subjects covers a wide spectrum, encompassing emerging technologies as well as actual, full-scale operations. Examples discussed include landfarming, biopiling, composting, phytoremediation and mycoremediation. Each technology is explored for its utility and capability to provide desired treatment goals. Advantages and limitations of each technology are discussed. The concept of natural attenuation is also critically evaluated since in some cases where time to remediation is not a significant factor, it may be an alternative to active bioremediation operations.
Author: Naofumi Shiomi
Publisher: BoD – Books on Demand
ISBN: 9535121650
Category : Science
Languages : en
Pages : 286
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Book Description
The pollution of soil and groundwater by heavy metals and other chemicals is becoming a serious issue in many countries. However, the current bioremediation processes do not often achieve sufficient remediation, and more effective processes are desired. This book deals with advances in the bioremediation of polluted soil and groundwater. In the former chapters of this book, respected researchers in this field describe how the optimization of microorganisms, enzymes, absorbents, additives and injection procedures can help to realize excellent bioremediation. In the latter chapters, other researchers introduce bioremediation processes that have been performed in the field and novel bioremediation processes. Thus, the readers will be able to obtain new ideas about effective bioremediation as well as important information about recent advances in bioremediation.
Author: Naofumi Shiomi
Publisher: BoD – Books on Demand
ISBN: 9535139576
Category : Science
Languages : en
Pages : 201
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Book Description
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.
Author: Maria S. Fuentes
Publisher: CRC Press
ISBN: 1351857371
Category : Science
Languages : en
Pages : 289
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Book Description
Increased awareness surrounding environmental protection has prompted the development of more ecofriendly technologies. This book provides useful information on technologies based upon the use of biological agents for environmental clean-up, including bacteria, yeast, fungi, algae, and plants. Some chapters refer to the direct application of products derived from plants and microorganisms for designing strategies of environmental remediation. The combination of strategies helps in efficient removal of pollutants generated from anthropogenic activities with minimal environmental impact. This book is meant for professionals involved in environmental technology and waste management.
Author: Junaid Ahmad Malik
Publisher: CRC Press
ISBN: 1000570274
Category : Technology & Engineering
Languages : en
Pages : 351
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Book Description
This 4-volume set focuses on the use of microbial bioremediation and phytoremediation to clean up pollutants in soil, such as pesticides, petroleum hydrocarbons, metals, and chlorinated solvents, which reduce the soil's fertility and renders it unfit for plant growth. Volume 2: Microbial Approaches and Recent Trends focuses on new and emerging techniques and approaches to address soil pollution. These include the use of rhizobacteria, archaea, cyanobacteria, and microalgae as biofertilizers and for soil bioremediation efforts. New technologies for assessment of soil bioremediation are explored also. The chapters provide in-depth coverage of the mechanisms, advantages, and disadvantages of the technologies used and highlight the use of different microbial enzymes that are used in the process of bioremediation and phytoremediation to clean up different pollutants without causing damage to the natural environment. Other volumes in the 4-volume set: • Volume 1: Fundamental Aspects and Contaminated Sites • Volume 3: Inventive Techniques, Research Methods, and Case Studies • Volume 4: Degradation of Pesticides and Polychlorinated Biphenyls Together, these four volumes provide in-depth coverage of the mechanisms, advantages, and disadvantages of the bioremediation and phytoremediation technologies for safe and sustainable soil management. The diverse topics help to arm biologists, agricultural engineers, environmental and soil scientists and chemists with the information and tools they need to address soil toxins that are a dangerous risk to plants, wildlife, humans and, of course, the soil itself.
