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Integrated Microbial Fuel Cells For Wastewater Treatment

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Integrated Microbial Fuel Cells for Wastewater Treatment

Integrated Microbial Fuel Cells for Wastewater Treatment Book
Author : Rouzbeh Abbassi,Asheesh Kumar Yadav,Faisal Khan,Vikram Garaniya
Publisher : Butterworth-Heinemann
Release : 2020-04-27
ISBN : 0128174935
Language : En, Es, Fr & De

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Book Description :

Current wastewater treatment technologies are not sustainable simply due to their high operational costs and process inefficiency. Integrated Microbial Fuel Cells for Wastewater Treatment is intended for professionals who are searching for an innovative method to improve the efficiencies of wastewater treatment processes by exploiting the potential of Microbial Fuel Cells (MFCs) technology. The book is broadly divided into four sections. It begins with an overview of the "state of the art" bioelectrochemical systems (BESs) as well as the fundamentals of MFC technology and its potential to enhance wastewater treatment efficiencies and reduce electricity generation cost. In section two, discusses the integration, installation, and optimization of MFC into conventional wastewater treatment processes such as activated sludge process, lagoons, constructed wetlands, and membrane bioreactors. Section three outlines integrations of MFCs into other wastewater processes. The final section provides explorative studies of MFC integrated systems for large scale wastewater treatment and the challenges which are inherent in the upscaling process. Clearly describes the latest techniques for integrating MFC into traditional wastewater treatment processes such as activated sludge process, lagoons, constructed wetlands, and membrane bioreactors Discusses the fundamentals of bioelectrochemical systems for degrading the contaminants from the municipal and industrial wastewater Covers methods for the optimization of integrated systems

Biomass Biofuels Biochemicals

Biomass  Biofuels  Biochemicals Book
Author : S.Venkata Mohan,Ashok Pandey,Sunita Varjani
Publisher : Elsevier
Release : 2018-09-28
ISBN : 0444640533
Language : En, Es, Fr & De

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Book Description :

Biomass, Biofuels, Biochemicals encompasses the potential of microbial electrochemical technologies, delineating their role in developing a technology for abating environmental crisis and enabling transformation to a sustainable future. The book provides new and futuristic methods for bioelectrogenesis, multiple product synthesis, waste remediation strategies, and electromicrobiology generation which are widely essential to individuals from industry, marketing, activists, writers, etc. In addition, it provides essential knowledge transfer to researchers, students and science enthusiasts on Microbial Electrochemical Technologies, detailing the functional mechanisms employed, various operational configurations, influencing factors governing the reaction progress and integration strategies. With these key topics and features, the book generates interest among a wide range of people related to renewable energy generation and sustainable environmental research. Depicts the holistic view of the multiple applications of Microbial Electrochemical Technologies (METs) in a unified comprehensible manner Provides strategic integrations of MET with various bioprocesses that are essential in establishing a circular biorefinery Widens the scope of the existing technologies, giving up-to date, state-of-the-art information and knowledge on research and commercialization Contains topics that are lucid, providing interdisciplinary knowledge on the environment, molecular biology, engineering, biotechnology, microbiology and economic aspects Includes more than 75 illustrations, figures, diagrams, flow charts, and tables for further study

Wastewater Treatment Residues as Resources for Biorefinery Products and Biofuels

Wastewater Treatment Residues as Resources for Biorefinery Products and Biofuels Book
Author : Jose Antonio Olivares,Daniel Puyol,Juan Antonio Melero,Javier Dufour
Publisher : Elsevier
Release : 2019-11-21
ISBN : 0128165405
Language : En, Es, Fr & De

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Book Description :

Wastewater Treatment Residues as Resources for Biorefinery Products and Energy reviews wastewater treatment processes and the use of residues. The viability of end use processes for residues, such as incineration, cement additives, agricultural fertilizers, and methane production are reviewed and analyzed, as are new processes for the use of residues within a fuels production system, such as pyrolysis, hydrothermal liquefaction and syngas. Specialized chapters discuss fractionation of biomass, the production of compounds from volatile fatty acids that conceptually proceed from the anaerobic acidogenesis of residues, and a final analysis of the overall productivity and viability that can be expected from these production schemes. Discusses processes for the production of high value-added products and energy development from sludge Provides value-added technologies for resource utilization in wastewater systems Outlines sustainability assessments and comparisons of technologies and processes

Current Trends and Future Developments on Bio Membranes

Current Trends and Future Developments on  Bio   Membranes Book
Author : Angelo Basile,Antonio Comite
Publisher : Elsevier
Release : 2020-01-30
ISBN : 0128168242
Language : En, Es, Fr & De

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Book Description :

Current Trends and Future Developments in Bio-Membranes: Membrane Technology for Water and Wastewater Treatment - Advances and Emerging Processes presents recent advances and a status update on the applications of membrane processes to both urban and industrial wastewater. Specific case studies of membrane technologies are described. Membrane processes have been widely studied, but their application in the wastewater sector is increasing rapidly. The book deals with the applications to the wastewater sector (e.g. MBR, NF, RO, ED) and emerging membrane technologies (e.g. MBfR, MD, FO, MFC). Specific case studies of membrane technology application and relevant wastewaters (e.g. municipal, dairy, oily refinery, etc.) are also discussed. Presents recent advances of wastewater treatment using membrane processes Outlines novel and emerging membrane technologies, e.g., membrane distillation, forward osmosis and membrane biofilm reactors Includes recent developments of more consolidated membrane processes, e.g., membrane biological reactors, nanofiltration, reverse osmosis, etc., either for water treatment or desalination Includes interesting and instructive case studies on the application of membrane technologies to various wastewater sources, e.g., municipal, dairy, olive mill, refinery, pulp and paper

Treatment of Sewage Domestic Wastewater Or Municipal Wastewater and Electricity Production by Integrating Constructed Wetland with Microbial Fuel Cell

Treatment of Sewage  Domestic Wastewater Or Municipal Wastewater  and Electricity Production by Integrating Constructed Wetland with Microbial Fuel Cell Book
Author : Maitreyie Narayan
Publisher :
Release : 2018
ISBN :
Language : En, Es, Fr & De

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Book Description :

Proper treatment of wastewater is important to human health and societal development, and the commonly applied wastewater treatment technologies based on aerobic treatment have a significant demand for energy. Thus, new treatment technologies with low energy consumption and possible recovery of valuable resources (e.g., energy and water) from wastewater become of strong interest. Among the newly developed concepts, microbial fuel cells (MFCs) integrated with constructed wetland appear to be very attractive because of direct electricity generation from organic compounds and treatment of wastewater. Constructed wetland coupled with microbial fuel cell (CW-MFC) is an emerging technology in recent years and has attracted a lot of attention from researchers in the fields of wastewater treatment and bioenergy production. CW-MFC is a promising technology in the fields of wastewater treatment and bioenergy. However, at current power levels, the advantage of combining the two is mainly because of the enhancement of wastewater treatment in anaerobic zones within the wetland. New operational strategies need to be explored to increase and utilize electricity output.

Bioelectrochemical Systems

Bioelectrochemical Systems Book
Author : Korneel Rabaey
Publisher : IWA Publishing
Release : 2010
ISBN : 184339233X
Language : En, Es, Fr & De

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Book Description :

In the context of wastewater treatment, Bioelectrochemical Systems (BESs) have gained considerable interest in the past few years, and several BES processes are on the brink of application to this area. This book, written by a large number of world experts in the different sub-topics, describes the different aspects and processes relevant to their development. Bioelectrochemical Systems (BESs) use micro-organisms to catalyze an oxidation and/or reduction reaction at an anodic and cathodic electrode respectively. Briefly, at an anode oxidation of organic and inorganic electron donors can occur. Prime examples of such electron donors are waste organics and sulfides. At the cathode, an electron acceptor such as oxygen or nitrate can be reduced. The anode and the cathode are connected through an electrical circuit. If electrical power is harvested from this circuit, the system is called a Microbial Fuel Cell; if electrical power is invested, the system is called a Microbial Electrolysis Cell. The overall framework of bio-energy and bio-fuels is discussed. A number of chapters discuss the basics - microbiology, microbial ecology, electrochemistry, technology and materials development. The book continues by highlighting the plurality of processes based on BES technology already in existence, going from wastewater based reactors to sediment based bio-batteries. The integration of BESs into existing water or process lines is discussed. Finally, an outlook is provided of how BES will fit within the emerging biorefinery area.

Hybrid System Up Flow Constructed Wetland Integrated with Microbial Fuel Cell for Simultaneous Wastewater Treatment and Bioelectricity Generation

Hybrid System Up Flow Constructed Wetland Integrated with Microbial Fuel Cell for Simultaneous Wastewater Treatment and Bioelectricity Generation Book
Author : Yoong Ling Oon
Publisher :
Release : 2019
ISBN :
Language : En, Es, Fr & De

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Book Description :

A hybrid system was developed by integrating MFC into CW for enhanced wastewater treatment and bioelectricity generation. The research is divided into five major scopes. The first scope is about design and fabrication of CW-MFC reactor, where electrodes are embedded into CW and feasibility of such hybrid system was tested for simultaneous organic and nutrient-containing wastewater treatment and bioelectricity production. Evaluation on denitrification, nitrification and organic matter removal efficiency corroborate wastewater treatment capabilities, and bioelectricity production performance were carried out. The performance of CW-MFC was compared with previous literature on CW reactor of similar dimension, design and configuration to corroborate the effectiveness of the hybrid system. The second scope of the research mainly focuses on the investigation of the effect of electrode spacing, the effect of organic loading rates, the effect of circuit connection on the performance of organic pollutant removal and electricity generation. The overall performance between the closed circuit and open circuit system were compared and put into perspective. The morphology of granular activated carbon electrodes was observed by using a scanning electron microscope (SEM).

Water Policy in the Netherlands

Water Policy in the Netherlands Book
Author : Stijn Reinhard,Henk Folmer
Publisher : Earthscan
Release : 2009
ISBN : 1936331411
Language : En, Es, Fr & De

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Book Description :

As a low-lying delta region with a high population density, the Netherlands has long focused on the prevention of flooding catastrophes and the reclamation of valuable land. The evolution of Dutch water governance, beginning with the creation of local 'water boards' in the Middle Ages and growing into a complex infrastructure of polders, dams, and controlled waterways offers a compelling study of pitfalls and successes within one of the worlds most challenging regions for water management. Water Policy in the Netherlands traces the arc of water governance in the country, from technological innovations to prevent wide-scale flooding, to strategies focused primarily on improving water quality, to an integral water management approach which brings together perspectives from economics, hydrology, ecology, water law, and water technology. The contributions in this book demonstrate how both the technical and social sciences must play key roles in crafting policy in the face of serious environmental challenges including climate change, sea level rise, and increasing soil subsidence. Innovative themes explored in the work include: how economic models and pricing structures might improve efficiency in the distribution of water resources, how the competing uses for water-including for recreation, arable agriculture, fisheries, and natural preservation-create demands on both the quantity and quality of water resources, and how public participation, cogovernance, and the balance of public and private interests will be necessary to meet the goals of the EUs Water Framework Directive. This resource serves as both an invaluable case study and as a text to develop the analytical tool of integral water management for students, policy-makers, and NGO professionals in developed and developing regions.

Simultaneous Use of a Crossflow Filtration Membrane as Microbial Fuel Cell Anode Permeate Flow Leads to 4 fold Increased Current Densities

Simultaneous Use of a Crossflow Filtration Membrane as Microbial Fuel Cell Anode     Permeate Flow Leads to 4 fold Increased Current Densities Book
Author : N.A
Publisher :
Release : 2018
ISBN :
Language : En, Es, Fr & De

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Book Description :

Highlights: A new combination of bioelectrochemical systems and membrane bioreactors. The anode is simultaneously used as membrane filter in crossflow configuration. Up to 4-fold increased anode current densities when operated in filtration mode. Abstract: A new concept for the combination of membrane bioreactors and microbial fuel cells is introduced, that aims at the production of electricity for reducing the overall energy consumption of wastewater treatment. In contrast to previous approaches, the anode is integrated as microfiltration membrane in sidestream crossflow configuration. Using a stainless steel filtration membrane with G. sulfurreducens and an acetate-based synthetic medium, up to 4-fold higher current densities are achieved. In a standard setup without filtration, a membrane of filter grade 1μm shows current densities of 5.8Am −2 ±0.5Am −2 compared to>11Am −2 when it is used simultaneously as membrane filter. With smaller pore sizes of filter grade 0.5μm, 4.4Am −2 ±0.5Am −2 in a standard setup and>15Am −2 in a filtration setup are achieved. The permeate flow was identified as the main parameter leading to increased current densities.

Sewage Treatment Plants

Sewage Treatment Plants Book
Author : Katerina Stamatelatou,Konstantinos P. Tsagarakis
Publisher : IWA Publishing
Release : 2015-05-15
ISBN : 1780405014
Language : En, Es, Fr & De

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Book Description :

Sewage Treatment Plants: Economic Evaluation of Innovative Technologies for Energy Efficiency aims to show how cost saving can be achieved in sewage treatment plants through implementation of novel, energy efficient technologies or modification of the conventional, energy demanding treatment facilities towards the concept of energy streamlining. The book brings together knowledge from Engineering, Economics, Utility Management and Practice and helps to provide a better understanding of the real economic value with methodologies and practices about innovative energy technologies and policies in sewage treatment plants.

Bioelectrochemical Interface Engineering

Bioelectrochemical Interface Engineering Book
Author : R.Navanietha Krishnaraj,Rajesh K. Sani
Publisher : John Wiley & Sons
Release : 2019-10-15
ISBN : 1119538548
Language : En, Es, Fr & De

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Book Description :

An introduction to the fundamental concepts and rules in bioelectrochemistry and explores latest advancements in the field Bioelectrochemical Interface Engineering offers a guide to this burgeoning interdisciplinary field. The authors—noted experts on the topic—present a detailed explanation of the field’s basic concepts, provide a fundamental understanding of the principle of electrocatalysis, electrochemical activity of the electroactive microorganisms, and mechanisms of electron transfer at electrode-electrolyte interfaces. They also explore the design and development of bioelectrochemical systems. The authors review recent advances in the field including: the development of new bioelectrochemical configurations, new electrode materials, electrode functionalization strategies, and extremophilic electroactive microorganisms. These current developments hold the promise of powering the systems in remote locations such as deep sea and extra-terrestrial space as well as powering implantable energy devices and controlled drug delivery. This important book: • Explores the fundamental concepts and rules in bioelectrochemistry and details the latest advancements • Presents principles of electrocatalysis, electroactive microorganisms, types and mechanisms of electron transfer at electrode-electrolyte interfaces, electron transfer kinetics in bioelectrocatalysis, and more • Covers microbial electrochemical systems and discusses bioelectrosynthesis and biosensors, and bioelectrochemical wastewater treatment • Reviews microbial biosensor, microfluidic and lab-on-chip devices, flexible electronics, and paper and stretchable electrodes Written for researchers, technicians, and students in chemistry, biology, energy and environmental science, Bioelectrochemical Interface Engineering provides a strong foundation to this advanced field by presenting the core concepts, basic principles, and newest advances.

Energy positive Self sustained Bioelectrochemcial Systems Treating Wastewater

Energy positive Self sustained Bioelectrochemcial Systems Treating Wastewater Book
Author : Yan Li
Publisher :
Release : 2016
ISBN :
Language : En, Es, Fr & De

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Book Description :

The objective of this doctorate research is to explore BES application in high energy consumption wastewater treatment and substrate recovery processes--metal removal, nitrogen removal and desalination to relieve the cost of electricity in these processes and take maximum advantage of limited power generated from BES to build self-sustainable treatment systems. Firstly, a self-sustained hybrid BES consisting of microbial fuel cell (MFC) and microbial electrolysis cell (MEC) was developed to reduce multiple metals simultaneously by utilizing different reaction potentials. Three heavy metals representing spontaneous reaction (chromium, Cr) and unspontaneous reaction (lead, Pb and nickel, Ni) were selected in this batch-mode study. Secondly, an integrated short-cut nitrification and autotrophic denitrification microbial fuel cell (SNAD-MFC) was developed to achieve energy-positive nitrogen removal from wastewater to save the energy consumption and chemical input in traditional biological nitrogen removal process. Thirdly, BES was applied in the anammox process where slow growth rate of anammox bacteria was the imminent problem for system efficiency and stability. This innovative solution was explored in this study by accelerating anammox in microbial electrolysis cells (MECs) and alleviating the dependence on anammox bacteria. Finally, self-sustained hybrid system utilizing the energy produced from microbial desalination cell (MDC) was studied by integrating MDC and MEC to simultaneously remove nitrogen in wastewater and metal ions in industrial wastewater and desalinate saline water. Integrated MDC-MEC could realize the maximum utilization of BES energy and synchronous treatment of different kinds of wastewater.

Constructed Wetlands for Industrial Wastewater Treatment

Constructed Wetlands for Industrial Wastewater Treatment Book
Author : Alexandros I. Stefanakis
Publisher : John Wiley & Sons
Release : 2018-08-20
ISBN : 1119268346
Language : En, Es, Fr & De

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Book Description :

A groundbreaking book on the application of the economic and environmentally effective treatment of industrial wastewater Constructed Wetlands for Industrial Wastewater Treatment contains a review of the state-of-the-art applications of constructed wetland technology for industrial wastewater treatment. This green technology offers many economic, environmental, and societal advantages. The text examines the many unique uses and the effectiveness of constructed wetlands for the treatment of complex and heavily polluted wastewater from various industrial sources. The editor — a noted expert in the field — and the international author team (93 authors from 22 countries) present vivid examples of the current state of constructed wetlands in the industrial sector. The text is filled with international case studies and research outcomes and covers a wide range of applications of these sustainable systems including facilities such as the oil and gas industry, agro-industries, paper mills, pharmaceutical industry, textile industry, winery, brewery, sludge treatment and much more. The book reviews the many system setups, examines the different removal and/or transformational processes of the various pollutants and explores the overall effectiveness of this burgeoning technology. This important resource: Offers the first, groundbreaking text on constructed wetlands use for industrial wastewater treatment Provides a single reference with summarized information and the state-of-the-art knowledge of the use of Constructed Wetlands in the industrial sector through case studies, research outcomes and review chapters Covers a range of industrial applications such as hydrocarbons/oil and gas industry, food and beverage, wood and leather processing, agro-industries, pharmaceuticals and many others Includes best practices drawn by a collection of international case studies Presents the latest technological developments in the industry Written for civil and environmental engineers, sustainable wastewater/water managers in industry and government, Constructed Wetlands for Industrial Wastewater Treatment is the first book to offer a comprehensive review of the set-up and effectiveness of constructed wetlands for a wide range of industrial applications to highlight the diverse economic and environmental benefits this technology brings to the industry.

Biochemical and Environmental Bioprocessing

Biochemical and Environmental Bioprocessing Book
Author : M Jerold,V Sivasubramanian
Publisher : CRC Press
Release : 2019-07-25
ISBN : 042958444X
Language : En, Es, Fr & De

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Book Description :

The rapid growth of industries has resulted in the generation of high volume of solid and liquid waste. Today, there is a need of Clean and Green technology for the sustainable waste management. Biochemical and Environmental Bioprocessing: Challenges and Developments explore the State-of-art green technologies to manage the waste and to recover value added products. Microbes play an important role in the bioremediation. Bioprocess engineering an interdisciplinary connects the Science and Technology. The bioconversion and bioremediation is essentially required for the management of various hazardous substances in the environment. This book will give an intensive knowledge on the application of Biochemical and Bioprocess technologies for the eco-friendly management of pollution. This book serves as a fundamental to the students, researchers, academicians and Engineers working in the area of Environmental Bioremediation and in the exploration of various bioproducts from waste. Features Reviews various biological methods for the treatment of effluents from Industries by using biomass and biopolymers. Highlights the applications of various bioreactors like Anaerobic Sequential Batch Reactor, Continuously stirred anaerobic digester, Up-flow anaerobic sludge blanket reactor, Fluidized and expanded bed reactors. Presents the cultivation of algae in Open Pond, Closed loop System, and Photo-bioreactors for bioenergy production. Discusses the intensified and integrated biorefinery approach by Microwave Irradiation, Pyrolysis, Acoustic cavitation, Hydrodynamic cavitation, Electron beam irradiation, High pressure Autoclave reactor, Steam explosion and photochemical oxidation. Outlines the usage of microbial fuel cell (MFC) for the production bioelectricity generation in different modules Tubular MFC, Stacked MFC, Separate electrode modules Cutting edge research of synthesis of biogenic nanoparticles and Pigments by green route for the health care and environment management.

Removal and Recovery of Nutrients from Wastewater in Urban and Rural Contexts

Removal and Recovery of Nutrients from Wastewater in Urban and Rural Contexts Book
Author : Kevin Orner
Publisher :
Release : 2019
ISBN :
Language : En, Es, Fr & De

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Book Description :

Efforts to remove and recover nutrients from wastewater are motivated by the United Nations Sustainable Development Goals and the National Academy of Engineering Grand Challenges of Engineering. Of the seventeen Sustainable Development Goals (SDGs), multiple SDGs relate to managing nutrients in wastewater. SDG 6, which is to “ensure availability and sustainable management of water and sanitation for all,” contains targets that aim to improve water quality by reducing pollution, halve the amount of untreated wastewater released to the environment, and increase recycling and safe reuse of wastewater (UN, 2017). SDG 2 seeks to improve food security and SDG 12 seeks to sustainably manage natural resources. Similarly, the National Academy of Engineering Grand Challenges of Engineering highlight managing the nitrogen cycle and providing access to clean water (NAE, 2019). Centralized wastewater treatment plants (WWTPs) have historically been designed to remove nutrients (such as nitrogen and phosphorus) and other contaminants prior to discharge. Modern wastewater treatment practices integrate recovery of resources including nutrients, energy, and water. The many available technologies, coupled with competing priorities, can complicate community decision-making on the choice of technology and the scale at which to implement the technology (i.e. building, community, or city), as well as determining how new upstream treatment may affect existing downstream treatment. Technologies that recover energy or manage nutrients such as anaerobic digestion, struvite precipitation, and microbial fuel cells can be implemented at a variety of scales in urban settings and may also be viable for influent types such as agricultural waste. Therefore, the overall goal of this dissertation is to contribute to the achievement of multiple sustainable development goals through the removal and recovery of nitrogen and phosphorus from a variety of influents at a variety of scales. One type of decision-making tool that assists in the choice of nutrient management technologies is a House of Quality. I developed a tool based on the House of Quality that integrated multiple priorities at three scales in a sewershed and produced rankings that generally align with current wastewater treatment practice. Accordingly, top-ranked city-scale technologies are those commonly employed (e.g. A2O, oxidation ditch) that use the dissolved organic carbon present in the wastewater to drive denitrification. Similarly, conventional treatment (e.g. flush toilet connected to a sewer) is ranked highest at the building scale because of its easy maintenance, small footprint, and inoffensive aesthetics. However, future trends such as technology development will likely affect the technologies, weightings, and scores and therefore improve the ranking of novel and emerging technologies. This trend may be amplified by the implementation of test beds, which can provide opportunities to improve the technical characteristics of developing technologies while minimizing risk for municipalities. The House of Quality planning tool was utilized in an in silico case study to analyze nutrient management technologies at three scales across the Northwest Regional Water Reclamation Facility sewershed in Hillsborough County, FL. The study demonstrated that employing treatment technologies upstream from the centralized wastewater treatment (i.e. building-scale source separation and community-scale technologies) could reduce nitrogen loading to the mainstream treatment train by over 50%. Sidestream treatment (i.e. the liquid effluent of anaerobic digestion that typically recycles back to the beginning of the mainstream treatment process) has minimal impact in nitrogen reduction, but is effective in reducing phosphorus loading to the mainstream due to high quantities of phosphorus recycling back to the head of the plant. These results can inform decision-makers about which context-specific nutrient management technologies to consider at a variety of scales, and illustrate that sidestream technologies can be the most effective in reducing phosphorus loading while building- and community-scale technologies can be most effective in reducing nitrogen loading to the centralized treatment plant. Struvite precipitation and microbial fuel cells (MFCs) can be used in combination to manage nutrients and recover energy in sidestreams of centralized WWTPs. Because the liquid effluent from engineered struvite precipitation often contains high concentrations of total nitrogen, I constructed and demonstrated a fixed-film nitrification reactor and a two-chambered MFC to further reduce total nitrogen and recover energy. The primary benefit of the MFC in the technology demonstrated here is not its ability to produce energy, but rather its ability to remove additional nitrogen through nitritation and denitritation. The sidestream nutrient removal prevents nutrients from returning to mainstream treatment, reducing operational costs. Such improvements to wastewater treatment processes can facilitate the transition to the resource recovery facility of the future by becoming a net-energy producer while also achieving the simultaneous benefits of nutrient recovery/removal and reduced costs associated with mainstream treatment. Nutrients and energy can also be recovered in agricultural settings. In this dissertation I studied an agricultural waste treatment system comprising a small-scale tubular anaerobic digester integrated with a low-cost, locally produced struvite precipitation reactor. This study investigated two digesters that treated swine waste in rural Costa Rica. I also facilitated construction of a pilot-scale struvite precipitation reactor that was built on site using local labor and local materials for approximately $920. Local products such as bittern (magnesium source) and soda ash (base) allowed for the production of struvite, a fertilizer that can replace synthetic fertilizer for rural farmers. Liquid-phase concentrations of PO43-P and NH4+-N in agricultural wastewater increased by averages of 131% and 116%, respectively, due to release from the swine waste during anaerobic digestion. Despite this increase in liquid-phase concentrations, an average of 25% of total phosphorus and 4% of total nitrogen was removed from the influent swine manure through sedimentation in the digesters. During struvite precipitation, an average of 79% of PO43-P and 12% of NH4+-N was removed from the waste stream and produced a solid with percentages (mass basis) of Mg, N, P of 9.9%, 2.4%, and 12.8%, respectively, indicating that struvite (MgNH4PO4) was likely formed. The treatment system offers multiple benefits to the local community: improved sanitation, removal of nutrients to prevent eutrophication, recovery of struvite as a fertilizer, and production of a final effluent stream that is suitable quality to be used in aquaculture. These are examples of how, more generally, quantifying nutrient recovery from agricultural waste and understanding recovery

Recent Developments in Bioenergy Research

Recent Developments in Bioenergy Research Book
Author : Vijai G. Gupta,Helen Treichel,Ramesh Chander Kuhad,Susana Rodriguez-Couto
Publisher : Elsevier
Release : 2020-06-21
ISBN : 0128227648
Language : En, Es, Fr & De

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Book Description :

Recent Developments in Bioenergy Research reviews all these topics, reports recent research findings, and presents potential solutions to challenging issues. The book consolidates the most recent research on the (bio)technologies, concepts and commercial developments that are currently in progress on different types of widely-used biofuels and integrated biorefineries across biochemistry, biotechnology, biochemical engineering and microbiology. Chapters include very recent/emerging topics, such as non-ionic and ionic liquids/surfactants for enhancement of lignocellulose enzymatic hydrolysis and lignocellulose biomass as a rich source of bio-ionic liquids. The book is a useful source of information for those working in the area of- industrial wastewater treatment and microbial fuel cells, but is also a great resource for senior undergraduate and graduate students, researchers, professionals, biochemical engineers and other interested individuals/groups working in the field of biofuel/bioenergy. Provides unique information on biomass-based biofuels for fundamental and applied research Outlines research advancements in the areas of bio-hydrogen, bioethanol, bio-methane and biorefineries Includes emerging topics on biomass (including wastes) characterization and its uses as a resource for environmental bioremediation and bioenergy Reviews enzyme engineering for biomass to bioproducts and biochemicals, lipids/bio-oil Focuses on biological/ biochemical routes, as these options have the greatest potential to be the most cost-effective methods for biofuel/bioenergy production

Water energy Interactions in Water Reuse

Water energy Interactions in Water Reuse Book
Author : Valentina Lazarova,Kwang-Ho Choo,Peter Cornel
Publisher : IWA Publishing
Release : 2012
ISBN : 184339541X
Language : En, Es, Fr & De

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Book Description :

Water-Energy Interactions of Water Reuse covers the use of energy in conventional and advanced wastewater treatment for various water reuse applications, including carbon footprint, energy efficiency, energy self-sufficient facilities and novel technologi

Bioremediation of Industrial Waste for Environmental Safety

Bioremediation of Industrial Waste for Environmental Safety Book
Author : Ram Naresh Bharagava,Gaurav Saxena
Publisher : Springer
Release : 2019-06-08
ISBN : 9811334269
Language : En, Es, Fr & De

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Book Description :

Achieving environmental sustainability with rapid industrialization is currently a major global challenge. Industries are the key economic drivers, but are also the main polluters as untreated/partially treated effluents from industry are usually discharged into the aquatic environment or dumped. Industrial effluents often contain highly toxic and hazardous pollutants, which cause ecological damage and present and health hazards to living beings. As such, there is a pressing need to find ecofriendly solutions to deal with industrial waste, and to develop sustainable methods for treating/detoxifying waste before it’s released into the environment. As a low cost and eco-friendly clean technology, bioremediation can offer a sustainable alternative to conventional remediation technologies for the treatment and management of industrial wastes. This book (Volume II) describes the role of biological agents in the degradation and detoxification of organic and inorganic pollutants in industrial wastes, and presents recent bioremediation approaches for waste treatment and management, such as constructed wetlands, electro- bioremediation and nano-bioremediation, as well as microbial fuel cells. It appeals to students, researchers, scientists, industry professionals and experts in the field of microbiology, biotechnology, environmental sciences, eco-toxicology, environmental remediation and waste management and other relevant areas who are interested in biodegradation and bioremediation of industrial wastes for environmental safety.

Nuts Volts

Nuts   Volts Book
Author : N.A
Publisher :
Release : 2004
ISBN :
Language : En, Es, Fr & De

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Book Description :