Reductive Dehalogenation Potential In A Leachate Recirculating Bioreactor Landfill And Its Affect On Leachate Toxicity

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Reductive Dehalogenation Potential in a Leachate Recirculating Bioreactor Landfill and Its Affect on Leachate Toxicity

Author : Jennifer Ann Loudon
Publisher :
ISBN 13 :
Total Pages : 102 pages
Book Rating : 4.:/5 (773 download)

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Book Synopsis Reductive Dehalogenation Potential in a Leachate Recirculating Bioreactor Landfill and Its Affect on Leachate Toxicity by : Jennifer Ann Loudon

Download or read book Reductive Dehalogenation Potential in a Leachate Recirculating Bioreactor Landfill and Its Affect on Leachate Toxicity written by Jennifer Ann Loudon and published by . This book was released on 2011 with total page 102 pages. Available in PDF, EPUB and Kindle. Book excerpt: Halogenated organic compounds may enter landfills through emplacement of various types of waste and are often detected in leachate. While leachate is a complex mixture of both organic and inorganic contaminants, the overall toxicity may be influenced by the presence of halogenated organic compounds. Leachate recirculating bioreactor landfills are generally anaerobic and support a diverse microbial community. The major hypothesis of this study was that leachate recirculating bioreactor landfill microorganisms can biotransform halogenated organic compounds and thus increase or decrease the toxicity of landfill leachate. To test the hypothesis, anaerobic microcosms were developed using elutriated landfill solids or leachate solids collected from the Burlington County Resource Recovery Center (BCRRC) leachate recirculating bioreactor landfill. The microcosms were amended with tetrachloroethene (PCE) as a model halogenated compound. In the landfill solids microcosms PCE dechlorination to cis-1,2-dichloroethene was observed, and in the leachate solids microcosms PCE dechlorination to ethene was observed, indicating the presence of dechlorinating microorganisms in the landfill system. The bacterial communities present in the raw landfill materials and the microcosms were compared using polymerase chain reaction amplification of 16S rRNA genes followed by denaturing gradient gel electrophoresis. There were distinct phylogenic differences between the communities, and phylotypes of the known dehalogenating bacterial genus, Dehalobacter, were detected in transfer enrichments of the leachate and solids microcosms. A Zebrafish embryo larval assay (ELA) was used to evaluate the toxicity of landfill leachate. One hundred percent mortality occurred when the embryos were exposed to solutions containing 16% leachate by volume over an exposure period of 24 hours. Various sublethal lesions were observed at lower concentrations. ELAs performed on microcosm supernatant yielded similar results. Minimal change in supernatant toxicity occurred as a result of incubating the material under conditions enhancing reductive dechlorination in the microcosms. Fractionation of the leachate suggested that most of the lethal toxicity could be attributed to the inorganic/metal fraction of the landfill leachate as opposed to the fraction containing the organic contaminants. Our results suggested that dehalogenating microorganisms are present in the BCRRC leachate recirculating bioreactor landfill and that landfill leachate toxicity can be assessed using the Zebrafish ELA approach.

Landfill Bioreactor Design & Operation

Author : Debra R. Reinhart
Publisher : CRC Press
ISBN 13 : 9781566702591
Total Pages : 212 pages
Book Rating : 4.7/5 (25 download)

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Book Synopsis Landfill Bioreactor Design & Operation by : Debra R. Reinhart

Download or read book Landfill Bioreactor Design & Operation written by Debra R. Reinhart and published by CRC Press. This book was released on 1997-09-23 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using biotechnology to help control landfill processes can mitigate costs, shorten the time needed to process solid waste, and ease the typical ecological damage to the land being used. This first-of-its-kind book provides regulators, designers, landfill owners, and operators with information that supports the utility of landfill bioreactors and provides design and operating criteria essential for the successful application of this technology. It pulls together laboratory, pilot, and full-scale experiences into one concise guide to designing and running municipal landfills as bioreactors. Landfill Bioreactor Design and Operation covers the history and background of landfill technology, research studies of actual bioreactor landfills, expected leachate and gas yields, specific design criteria, operation guidelines, and reuse of landfill sites to avoid having to establish new sites. For anyone looking for an alternative to large, wasteful landfill sites, this book provides a practical alternative to the problem.

Leachate Recirculation in Bioreactor Landfills

Author : Mazen Mohamad Haydar
Publisher :
ISBN 13 :
Total Pages : 458 pages
Book Rating : 4.3/5 (129 download)

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Book Synopsis Leachate Recirculation in Bioreactor Landfills by : Mazen Mohamad Haydar

Download or read book Leachate Recirculation in Bioreactor Landfills written by Mazen Mohamad Haydar and published by . This book was released on 2005 with total page 458 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Slope Stability of Bioreactor Landfills During Leachate Injection: Effects of Heterogeneous and Anisotropic Municipal Solid Waste Conditions

Download Slope Stability of Bioreactor Landfills During Leachate Injection: Effects of Heterogeneous and Anisotropic Municipal Solid Waste Conditions PDF Online Free

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (13 download)

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Book Synopsis Slope Stability of Bioreactor Landfills During Leachate Injection: Effects of Heterogeneous and Anisotropic Municipal Solid Waste Conditions by :

Download or read book Slope Stability of Bioreactor Landfills During Leachate Injection: Effects of Heterogeneous and Anisotropic Municipal Solid Waste Conditions written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: In bioreactor landfills, leachate recirculation can significantly affect the stability of landfill slope due to generation and distribution of excessive pore fluid pressures near side slope. The current design and operation of leachate recirculation systems do not consider the effects of heterogeneous and anisotropic nature of municipal solid waste (MSW) and the increased pore gas pressures in landfilled waste caused due to leachate recirculation on the physical stability of landfill slope. In this study, a numerical two-phase flow model (landfill leachate and gas as immiscible phases) was used to investigate the effects of heterogeneous and anisotropic nature of MSW on moisture distribution and pore-water and capillary pressures and their resulting impacts on the stability of a simplified bioreactor landfill during leachate recirculation using horizontal trench system. The unsaturated hydraulic properties of MSW were considered based on the van Genuchten model. The strength reduction technique was used for slope stability analyses as it takes into account of the transient and spatially varying pore-water and gas pressures. It was concluded that heterogeneous and anisotropic MSW with varied unit weight and saturated hydraulic conductivity significantly influenced the moisture distribution and generation and distribution of pore fluid pressures in landfill and considerably reduced the stability of bioreactor landfill slope. It is recommended that heterogeneous and anisotropic MSW must be considered as it provides a more reliable approach for the design and leachate operations in bioreactor landfills.

Effects of Leachate from Bioreactor and Recirculation Landfills on the Hydraulic Conductivity of Geosynthetic Clay Liners

Author : Tammy L. Rauen
Publisher :
ISBN 13 :
Total Pages : 318 pages
Book Rating : 4.:/5 (89 download)

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Book Synopsis Effects of Leachate from Bioreactor and Recirculation Landfills on the Hydraulic Conductivity of Geosynthetic Clay Liners by : Tammy L. Rauen

Download or read book Effects of Leachate from Bioreactor and Recirculation Landfills on the Hydraulic Conductivity of Geosynthetic Clay Liners written by Tammy L. Rauen and published by . This book was released on 2007 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Acute and Genetic Toxicity of Municipal Landfill Leachate

Author : Kirk W. Brown
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (269 download)

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Book Synopsis Acute and Genetic Toxicity of Municipal Landfill Leachate by : Kirk W. Brown

Download or read book Acute and Genetic Toxicity of Municipal Landfill Leachate written by Kirk W. Brown and published by . This book was released on 1991 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Potential for Bioremediation of Groundwater Contaminated with Landfill Leachate

Author :
Publisher :
ISBN 13 :
Total Pages : 5 pages
Book Rating : 4.:/5 (684 download)

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Book Synopsis Potential for Bioremediation of Groundwater Contaminated with Landfill Leachate by :

Download or read book Potential for Bioremediation of Groundwater Contaminated with Landfill Leachate written by and published by . This book was released on 2001 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this study was to evaluate the potential for MNA of the remaining chlorinated ethenes in SRS landfill GW, along with enhancing anaerobic reductive dechlorination through addition of an electron donor. Historical GW monitoring data were used to evaluate the site based on phase I of the RABITT protocol. Microcosms were used to assess the potential for enhancing dechlorination through addition of lactate and/or sulfate.

Bioreactor Landfills Promoted by Leachate Recirculation

Author : Samuel T. S. Yuen
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (222 download)

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Book Synopsis Bioreactor Landfills Promoted by Leachate Recirculation by : Samuel T. S. Yuen

Download or read book Bioreactor Landfills Promoted by Leachate Recirculation written by Samuel T. S. Yuen and published by . This book was released on 1999 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Landfill Leachate

Author :
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (924 download)

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Book Synopsis Landfill Leachate by :

Download or read book Landfill Leachate written by and published by . This book was released on 2002 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Toxicity of Landfill Leachates

Author : Robert D. Cameron
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (948 download)

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Book Synopsis Toxicity of Landfill Leachates by : Robert D. Cameron

Download or read book Toxicity of Landfill Leachates written by Robert D. Cameron and published by . This book was released on 1980 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Evolution and Degradation Pathways of Landfill Leachate Doc and Detection of Groundwater Landfill-leachate Contamination Using Compound-specific Isotope Analysis

Download Evolution and Degradation Pathways of Landfill Leachate Doc and Detection of Groundwater Landfill-leachate Contamination Using Compound-specific Isotope Analysis PDF Online Free

Author : Hossein Mohammadzadeh
Publisher :
ISBN 13 :
Total Pages : 358 pages
Book Rating : 4.:/5 (647 download)

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Book Synopsis Evolution and Degradation Pathways of Landfill Leachate Doc and Detection of Groundwater Landfill-leachate Contamination Using Compound-specific Isotope Analysis by : Hossein Mohammadzadeh

Download or read book Evolution and Degradation Pathways of Landfill Leachate Doc and Detection of Groundwater Landfill-leachate Contamination Using Compound-specific Isotope Analysis written by Hossein Mohammadzadeh and published by . This book was released on 2007 with total page 358 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Dissertation Abstracts International

Author :
Publisher :
ISBN 13 :
Total Pages : 850 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Dissertation Abstracts International by :

Download or read book Dissertation Abstracts International written by and published by . This book was released on 2008 with total page 850 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Post Treatments of Anaerobically Treated Effluents

Author : Vinay Kumar Tyagi
Publisher : IWA Publishing
ISBN 13 : 1780409737
Total Pages : 457 pages
Book Rating : 4.7/5 (84 download)

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Book Synopsis Post Treatments of Anaerobically Treated Effluents by : Vinay Kumar Tyagi

Download or read book Post Treatments of Anaerobically Treated Effluents written by Vinay Kumar Tyagi and published by IWA Publishing. This book was released on 2019-06-15 with total page 457 pages. Available in PDF, EPUB and Kindle. Book excerpt: The anaerobic process is considered to be a sustainable technology for organic waste treatment mainly due to its lower energy consumption and production of residual solids coupled with the prospect of energy recovery from the biogas generated. However, the anaerobic process cannot be seen as providing the ‘complete’ solution as its treated effluents would typically not meet the desired discharge limits in terms of residual carbon, nutrients and pathogens. This has given impetus to subsequent post treatment in order to meet the environmental legislations and protect the receiving water bodies and environment. This book discusses anaerobic treatment from the perspective of organic wastes and wastewaters (municipal and industrial) followed by various post-treatment options for anaerobic effluent polishing and resource recovery. Coverage will also be from the perspective of future trends and thoughts on anaerobic technologies being able to support meeting the increasingly stringent disposal standards. The resource recovery angle is particularly interesting as this can arguably help achieve the circular economy. It is intended the information can be used to identify appropriate solutions for anaerobic effluent treatment and possible alternative approaches to the commonly applied post-treatment techniques. The succeeding discussion is intended to lead on to identification of opportunities for further research and development. This book can be used as a standard reference book and textbook in universities for Master and Doctoral students. The academic community relevant to the subject, namely faculty, researchers, scientists, and practicing engineers, will find the book both informative and as a useful source of successful case studies.

Biomethanization of the Organic Fraction of Municipal Solid Wastes

Author : J. Mata-Alvarez
Publisher : IWA Publishing
ISBN 13 : 1900222140
Total Pages : 292 pages
Book Rating : 4.9/5 (2 download)

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Book Synopsis Biomethanization of the Organic Fraction of Municipal Solid Wastes by : J. Mata-Alvarez

Download or read book Biomethanization of the Organic Fraction of Municipal Solid Wastes written by J. Mata-Alvarez and published by IWA Publishing. This book was released on 2002-08-31 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Biomethanization of the Organic Fraction of Municipal Solid Wastes is a comprehensive introduction to both the fundamentals and the more practical aspects of the anaerobic digestion of organic solid wastes, particularly those derived from households, that is, the organic fraction of municipal solid wastes (OFMSW). It can be used as a textbook for specialized courses and also as a guide for practitioners. In the first part, the book covers the relevant aspects of anaerobic digestion (AD) of organic wastes. The fundamentals and kinetic aspects of AD are reviewed with particular emphasis on the aspects related to solid wastes. This introduction is necessary to have a comprehensive view of the AD process and to understand the practical principles as well as the origin of possible problems arising from the management of the process. Chapter 2 emphasizes the role of kinetics in designing the reactor, paying special attention to existing models, particularly the dynamic ones. Through this introduction, it is intended to facilitate the technology transfer from laboratory or pilot plant experiences to full-scale process, in order to implement improvements in current digesters. Laboratory methods are described for the analysis and optimization of reactor performance, such as methanogenic activity tests or experimental evaluation of the biodegradation kinetics of solid organic waste. The different reaction patterns applied to industrial reactors are outlined. Industrial reactors are classified in accordance with the system they use, pointing out advantages and limitations. Co-digestion, enabling the co-treatment of organic wastes of different origin in a more economically feasible way, is described in detail. Examples of co-digestion are given, with OFMSW as a base-substrate. Finally, full-scale co-digestion plants are discussed. Various types (mechanical, biological, physico-chemical) of pre-treatment to increase the biodegradability, and thus the yields of the process, are reviewed in detail. The use of the fermentation products of anaerobic digesters for biological nutrient removal processes in wastewater treatment plants is described. This constitutes an example of integrated waste management, a field in which both economic and technical advances can be achieved. Balances are given to justify the approach, and a full-scale case study is presented. The important topic of economics and the ecological advantages of the process are emphasized. The use of compost, the integration with composting technology, and advantages over other technologies are detailed in the framework of an environmental impact assessment of biowaste treatment. Finally, the anaerobic digestion of MSW in landfills is reviewed in detail, with emphasis on landfill process enhancement and strategies for its application.

Waste Treatment and Disposal

Author : Paul T. Williams
Publisher : John Wiley & Sons
ISBN 13 : 111868737X
Total Pages : 396 pages
Book Rating : 4.1/5 (186 download)

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Book Synopsis Waste Treatment and Disposal by : Paul T. Williams

Download or read book Waste Treatment and Disposal written by Paul T. Williams and published by John Wiley & Sons. This book was released on 2013-04-30 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following on from the successful first edition of Waste Treatment & Disposal, this second edition has been completely updated, and provides comprehensive coverage of waste process engineering and disposal methodologies. Concentrating on the range of technologies available for household and commercial waste, it also presents readers with relevant legislative background material as boxed features. NEW to this edition: Increased coverage of re-use and recycling Updating of the usage of different waste treatment technologies Increased coverage of new and emerging technologies for waste treatment and disposal A broader global perspective with a focus on comparative international material on waste treatment uptake and waste management policies

Soil pollution: a hidden reality

Author : Food and Agriculture Organization of the United Nations
Publisher : Food & Agriculture Org.
ISBN 13 : 9251305056
Total Pages : 156 pages
Book Rating : 4.2/5 (513 download)

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Book Synopsis Soil pollution: a hidden reality by : Food and Agriculture Organization of the United Nations

Download or read book Soil pollution: a hidden reality written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2018-04-30 with total page 156 pages. Available in PDF, EPUB and Kindle. Book excerpt: This document presents key messages and the state-of-the-art of soil pollution, its implications on food safety and human health. It aims to set the basis for further discussion during the forthcoming Global Symposium on Soil Pollution (GSOP18), to be held at FAO HQ from May 2nd to 4th 2018. The publication has been reviewed by the Intergovernmental Technical Panel on Soil (ITPS) and contributing authors. It addresses scientific evidences on soil pollution and highlights the need to assess the extent of soil pollution globally in order to achieve food safety and sustainable development. This is linked to FAO’s strategic objectives, especially SO1, SO2, SO4 and SO5 because of the crucial role of soils to ensure effective nutrient cycling to produce nutritious and safe food, reduce atmospheric CO2 and N2O concentrations and thus mitigate climate change, develop sustainable soil management practices that enhance agricultural resilience to extreme climate events by reducing soil degradation processes. This document will be a reference material for those interested in learning more about sources and effects of soil pollution.

Biotechnology for Waste and Wastewater Treatment

Author : Nicholas P. Cheremisinoff
Publisher : Elsevier
ISBN 13 : 0815516282
Total Pages : 247 pages
Book Rating : 4.8/5 (155 download)

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Book Synopsis Biotechnology for Waste and Wastewater Treatment by : Nicholas P. Cheremisinoff

Download or read book Biotechnology for Waste and Wastewater Treatment written by Nicholas P. Cheremisinoff and published by Elsevier. This book was released on 1997-12-31 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book examines the practices used or considered for biological treatment of water/waste-water and hazardous wastes. The technologies described involve conventional treatment processes, their variations, as well as future technologies found in current research. The book is intended for those seeking an overview to the biotechnological aspects of pollution engineering, and covers the major topics in this field. The book is divided into five major sections and references are provided for those who wish to dig deeper.