Nazih K. Shammas – författare

Details the design and process of water supply systems, tracing the progression from source to sink Organized and logical flow, tracing the connections in the water-supply system from the water’s source to its eventual useEmphasized coverage of water supply infrastructure and the design of water treatment processesInclusion of fundamentals and practical examples so as to connect theory with the realities of designProvision of useful reference for practicing engineers who require a more in-depth coverage, higher level students studying drinking water systems as well as students in preparation for the FE/PE examinationsInclusion of examples and homework questions in both SI and US units

Based on the classic text by Fair, Greyer, and Okun, this new edition has been completely revised and updated including eight completely new chapters by university professors and engineers practicing in the field. It reflects current practice, includes access to an academic version of the commercial software Haestad Methods Water Solutions by Bentley, and now includes homework problems. This is a time of mounting urbanization and industrialization and resulting stress on water and wastewater systems. Clean and ample sources of water for municipal uses are becoming harder to find and more expensive to develop. Effective design and efficient operation of engineering works ask, above all, for a fuller understanding and application of scientific principles. The results of scientific research are being incorporated with remarkable success in new designs using both U.S. and SI systems equations, examples and problems as well as new operating procedures. This classic text, now updated, grounds readers in both the science and art of water and wastewater engineering that global engineers need to service their customers and communities.

A successful modern heavy metal control program for any industry will include not only traditional water pollution control, but also air pollution control, soil conservation, site remediation, groundwater protection, public health management, solid waste disposal, and combined industrial-municipal heavy metal waste management. In fact, it should be a total environmental control program. Comprehensive in scope, Heavy Metals in the Environment provides technical and economical information on the development of a feasible total heavy metal control program that can benefit industry and local municipalities.The book discusses the importance and contamination of metals such as lead, chromium, cadmium, zinc, copper, nickel, iron, and mercury. It covers important research of metals in the environment, the processes and mechanisms for metals control and removal, the environmental behavior and effects of engineered metal and metal oxide nanoparticles, environmental geochemistry of high arsenic aquifer systems, nano-technology applications in metal ion adsorption, biosorption of metals, and heavy metal removal by expopolysaccharide-producing cyanobacteria. The authors delineate technologies for metals treatment and management, metal bearing effluents, metal-contaminated solid wastes, metal finishing industry wastes and brownfield sites, and arsenic-contaminated groundwater streams. They also discuss control, treatment, and management of metal emissions from motor vehicles.The authors reflect the breadth of the field and draw on personal experiences to provide an in-depth presentation of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends for each industrial or commercial operation. The methodologies and technologies discussed are directly applicable to the waste management problems that must be met in all industries.

The classic guide to water and wastewater engineering returns Water and wastewater engineering is a crucial branch of civil engineering, dealing with water resources and with the challenges posed by water and wastewater. Generations of engineers have developed techniques for purifying, desalinating, and transforming water and wastewater, techniques which have only grown more critical as climate change and global population growth create new challenges and opportunities. There has never been a more urgent need for a comprehensive guide to the management of water and its various engineering subdisciplines. Volume 1 of Water and Wastewater Engineering: Hydraulics, Hydrology, and Management, 4th edition has been fully updated to reflect the latest research and case studies. This vital text addresses growing urbanization and industrialization, with corresponding stress on water and wastewater systems. This first volume deals primarily with hydrology and hydraulics, along with chapters treating groundwater and surface water sources. Readers will also find: Coverage of water supply, water sources, water distribution, and moreDetailed treatment of both sanitary sewer and urban stormwater drainageIn-depth analysis of infrastructure issues with respect to water resources, pumping, and handlingWater and Wastewater Engineering is ideal for advanced students in civil, environmental, and chemical engineering departments, as well as for early career engineers, plant managers, and urban and regional planners.

WATER and WASTEWATER ENGINEERING The classic guide to water and wastewater engineering returns Water and wastewater engineering is a crucial branch of civil engineering, dealing with water resources and with the challenges posed by water and wastewater. Generations of engineers have developed techniques for purifying, desalinating, and transforming water and wastewater, techniques which have only grown more critical as climate change and global population growth create new challenges and opportunities. There has never been a more urgent need for a comprehensive guide to the management of water and its various engineering subdisciplines. Water and Wastewater Engineering: Hydraulics, Hydrology and Management, 4th edition offers key fundamentals in a practical context to engineers and engineering students. Updated to address growing urbanization and industrialization, with corresponding stress on water and wastewater systems, this vital textbook has been fully revised to reflect the latest research and case studies. This volume focuses primarily with hydrology and hydraulics, along with chapters treating groundwater and surface water sources. Readers of Hydraulics, Hydrology and Management will also find: Coverage of water supply, water sources, water distribution, and more Detailed treatment of both sanitary sewer and urban stormwater drainage In-depth analysis of infrastructure issues with respect to water resources, pumping, and handlingThis textbook is ideal for advanced students in civil, environmental, and chemical engineering departments, as well as for early career engineers, plant managers, and urban and regional planners.

Most industrial and hazardous waste management resources cover the major industries and provide conventional in-plant pollution control strategies. Until now however, no book or series of books has provided coverage that includes the latest developments in innovative and alternative environmental technology, design criteria, managerial decision methodologies, and regional and global environmental conservation. The new Handbook of Advanced Industrial and Hazardous Wastes Treatment—together with its predecessor, the Handbook of Industrial and Hazardous Wastes Treatment—forms a complete and up-to-date resource that contains all the necessary technical information on hazardous industrial waste treatment. Providing in-depth coverage of treatment and management technologies in wide-ranging industries that readers simply won’t find anywhere else, this cutting-edge text addresses wastes in areas including metal finishing, food processing, milk production, foundries, and chemical manufacturing. It covers basic and advanced principles and applications in contemporary hazardous and industrial waste treatment and explores new methods of clean production, waste minimization, and the treatment of landfills and underground storage tanks. Coverage includes the latest developments in legislation, regulations, soil remediation, brownfield site restoration, bioremediation, enzymatic processes, and much more. Complete with numerous figures, tables, examples, and case histories, this book provides technical and economical information on how to develop a total environmental control program that can benefit both industry and local municipalities. This book combined with the Handbook of Industrial and Hazardous Wastes Treatment forms a resource that is comprehensive in scope and directly applicable to waste management problems in a broad range of industries.

Comprehensive in its scope and directly applicable to daily waste management problems of specific industries, Waste Treatment in the Metal Manufacturing, Forming, Coating, and Finishing Industries covers hazardous industrial waste treatment, renovation, and reuse in the metal manufacturing, forming, coating, enameling, and finishing industries. It details specific hazardous and industrial wastes from metal industries, basic and advanced principals and applications, augmented by figures, tables, examples, and case histories.This book elucidates new industries and new waste management topics and provides all of the necessary technical information on industrial and hazardous waste treatment. Focusing on new developments in innovative and alternative technologies, it offers in-depth coverage of environmental pollution sources, waste characteristics, facility innovations, design criteria, control technologies, management strategies, process alternatives, costs, and effluent standards. It also addresses the regional and global effects of important pollution control practices specific to the process industries.Since the field of industrial hazardous waste treatment is very broad and no one can claim to be an expert in all industries, the editors have collected contributions from a wide range of experts, making the information in this handbook authoritative, inclusive, and cutting-edge. It seamlessly interweaves the traditional with the novel, covering all sectors of pollution control and delineating the need for a total environmental control program and how to achieve it.

As the global nature of pollution becomes increasingly obvious, successful hazardous waste treatment programs must take a total environmental control approach that encompasses all areas of pollution control. With its focus on new developments in innovative and alternative environmental technology, design criteria, effluent standards, managerial decision methodology, and regional and global environmental conservation, Advance in Hazardous Industrial Waste Treatment provides the widest possible coverage drawn from the full spectrum of experts in the fieldThe volume covers environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, and effluent standards in industry. It delineates methods, technologies, and the regional and global effects of important pollution control practices. Chapters highlight innovative and alternative technologies, design criteria, managerial decision making, and regional and global environmental conservation specific to industrial hazardous wastes. They feature examples of major industrial hazardous pollutants that have significant effects on the environment, as well as extensive bibliographies for each industrial waste treatment practice that point to sources of further information.Since the field of industrial hazardous waste treatment is very broad, no one can claim to be an expert in all industries. Therefore, editors Wang, Shammas, and Hung draw on collective contributions that reflect the depth and breadth of the field, making the resulting handbook the best available reference on chemical and environmental engineering for industrial hazardous waste treatment. They provide technical and economical information on the development of the most feasible total environmental control programs that can benefit industries and local municipalities.

This volume provides in-depth coverage of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends in the process industries. It delineates methodologies, technologies, and the regional and global effects of important pollution control practices. The authors focus on new developments in innovative and alternative technologies, design criteria, effluent standards, managerial decision methodology, and regional and global environmental conservation specific to process industries.

A successful modern heavy metal control program for any industry will include not only traditional water pollution control, but also air pollution control, soil conservation, site remediation, groundwater protection, public health management, solid waste disposal, and combined industrial-municipal heavy metal waste management. In fact, it should be a total environmental control program. Comprehensive in scope, Heavy Metals in the Environment provides technical and economical information on the development of a feasible total heavy metal control program that can benefit industry and local municipalities.The book discusses the importance and contamination of metals such as lead, chromium, cadmium, zinc, copper, nickel, iron, and mercury. It covers important research of metals in the environment, the processes and mechanisms for metals control and removal, the environmental behavior and effects of engineered metal and metal oxide nanoparticles, environmental geochemistry of high arsenic aquifer systems, nano-technology applications in metal ion adsorption, biosorption of metals, and heavy metal removal by expopolysaccharide-producing cyanobacteria. The authors delineate technologies for metals treatment and management, metal bearing effluents, metal-contaminated solid wastes, metal finishing industry wastes and brownfield sites, and arsenic-contaminated groundwater streams. They also discuss control, treatment, and management of metal emissions from motor vehicles.The authors reflect the breadth of the field and draw on personal experiences to provide an in-depth presentation of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends for each industrial or commercial operation. The methodologies and technologies discussed are directly applicable to the waste management problems that must be met in all industries.

This book provides in-depth coverage of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends in waste treatment processes. It delineates methodologies, technologies, and the regional and global effects of important pollution control practices. It focuses on toxic heavy metals in the environment, various heavy metal decontamination technologies, brownfield restoration, and industrial, agricultural, and radioactive waste management. It discusses the importance of metals such as lead, chromium, cadmium, zinc, copper, nickel, iron, and mercury.

This volume provides in-depth coverage of environmental pollution sources, waste characteristics, control technologies, management strategies, facility innovations, process alternatives, costs, case histories, effluent standards, and future trends in waste treatment processes. It delineates methodologies, technologies, and the regional and global effects of important pollution control practices. It focuses on specific industrial and manufacturing wastes and their remediation. Topics include: heavy metals, electronics, chemical, and textile manufacturing.

The past 30 years have seen the emergence of a growing desire worldwide that positive actions be taken to restore and protect the environment from the degrading effects of all forms of pollution – air, water, soil, and noise.

The traditional approach of applying tried-and-true solutions to specific pollution problems has been a major contributing factor to the success of en- ronmental engineering, and has accounted in large measure for the establi- ment of a “methodology of pollution control.

In this essential new volume, Volume 13: Membrane and Desalination Technologies, a panel of expert researchers provide a wealth of information on membrane and desalination technologies. An advanced chemical and environmental engineering textbook as well as a comprehensive reference book, this volume is of high value to advanced graduate and undergraduate students, researchers, scientists, and designers of water and wastewater treatment systems. This is an essential part of the Handbook of Environmental Engineering series, an incredible collection of methodologies that study the effects of pollution and waste in their three basic forms: gas, solid, and liquid. Chapters adopt the series format, employing methods of practical design and calculation illustrated by numerical examples, including pertinent cost data whenever possible, and exploring in great detail the fundamental principles of the field. Volume 13: Membrane and Desalination Technologies is an essential guide for researchers, highlighting the latest developments in principles of membrane technology, membrane systems planning and design, industrial and municipal waste treatments, desalination requirements, wastewater reclamation, biofiltration, and more.

A critical survey of both the principles and practices involved in water pollution control, potable water treatment, water reuse, and sludge treatment. The authors discuss the performance, potential, and limitations of each major physicochemical treatment process in detail - including the physical and chemical theory behind it, the applications, the design procedures, examples, references, and cost data - as a basis for intelligent planning and realization of treatment systems. Among the processes covered are screening, comminution, flow equalization, neutralization, mixing, coagulation, flocculation, chemical precipitation, oxidation, recarbonization, softening, halogenation, and disinfection. Additional chapters discuss ozonation, electrolysis, sedimentation, dissolved air flotation, gravity filtration, granular activated carbon adsorption, and sludge treatment. The emphasis throughout is on developing the necessary engineering from fundamental principles of chemistry, physics, and mathematics.Two companion volumes, Air Pollution Control Engineering, Volume 1, and Advanced Air and Noise Pollution Control, Volume 2, survey the basic air pollution control technique and the use of multiple techniques to deal with air, thermal, and noise pollution.

The past 30 years have seen the emergence of a growing desire worldwide that positive actions be taken to restore and protect the environment from the degrading effects of all forms of pollution—air, water, soil, and noise. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for “zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identi?ed: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers formulate answers to the last two questions above. The traditional approach of applying tried-and-true solutions to speci?c pollution problems has been a major contributing factor to the success of environmental en- neering, and has accounted in large measure for the establishment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.

The past thirty years have witnessed a growing worldwide desire that po- tive actions be taken to restore and protect the environment from the degr- ing effects of all forms of pollution—air, water, soil, and noise. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for “zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been id- tified: (1) How serious is the pollution? (2) Is the technology to abate it ava- able? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers f- mulate answers to the last two questions above. The traditional approach of applying tried-and-true solutions to specific pollution problems has been a major contributing factor to the success of en- ronmental engineering, and has accounted in large measure for the establi- ment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.

The past thirty years have seen the emergence of a growing desire worldwide that positive actions be taken to restore and protect the environment from the degrading effects of all forms of pollution—air, water, soil, and noise. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for ”zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identified: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers formulate answers to the above three questions. The traditional approach of applying tried-and-true solutions to specific pollution problems has been a major contributing factor to the success of en- ronmental engineering, and has accounted in large measure for the establi- ment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.

The past 30 years have seen the emergence of a growing desire worldwide that positive actions be taken to restore and protect the environment from the degrading effects of all forms of pollution – air, water, soil, and noise. Since pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for “zero discharge” can be construed as an unreal- tic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identi?ed: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers formulate answers to the last two questions above. The traditional approach of applying tried-and-true solutions to speci?c pollution p- blems has been a major contributing factor to the success of environmental engineering and has accounted in large measure for the establishment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.

In Advanced Physiochemical Treatment Technologies, leading pollution control educators and practicing professionals describe how various combinations of different cutting-edge process systems can be arranged to solve air, noise, and thermal pollution problems. Each chapter discusses in detail the three basic forms in which pollutants and waste are manifested: gas, solid, and liquid.

Over the last 30 years, pollution and its effects on the environment have emerged as leading topics of interest. The desire for positive action to restore and protect the environment is growing worldwide. How serious are particular types of pollution? Is technology currently available to abate pollution? And do the costs of abatement justify the degree of abatement achieved? In the series, Handbook of Environmental Engineering, these questions are answered for the three basic forms of pollution and waste: gas, solid and liquid. Volume 7 in the series, Biosolids Engineering and Management, is a collection of methods of practical design, calculation and numerical examples that illustrate how organized, analytical reasoning can lead to the discovery of clear, direct solutions, especially in the areas of biosolids management, treatment, disposal and beneficial use. The book’s distinguished panel of authors provides insight into a range of topics, including sludge and biosolids transport, pumping and storage, sludge conversion to biosolids, chlorination, stabilization, regulatory requirements, costs, agricultural land application, landfill, ocean disposal, combustion, incineration and sludge treatment process selection. Along with its sister book - Volume 6, Biosolids Treatment Processes – Volume 7 is designed to be a basic biosolids treatment textbook, as well as a comprehensive reference book for advanced undergraduate and graduate students, designers of waste treatment systems, scientists and researchers. Both insightful and illuminating, Volume 7, Biosolids Engineering and Management gives state-of-the-art illustrations of the theory and practice of individual biosolids management systems and pertinent information on physical, chemical and biological treatment technologies used today.

In this essential new volume, Volume 13: Membrane and Desalination Technologies, a panel of expert researchers provide a wealth of information on membrane and desalination technologies.

A critical survey of both the principles and practices involved in water pollution control, potable water treatment, water reuse, and sludge treatment. The authors discuss the performance, potential, and limitations of each major physicochemical treatment process in detail-including the physical and chemical theory behind it, the applications, the design procedures, examples, references, and cost data-as a basis for intelligent planning and realization of treatment systems. Among the processes covered are screening, comminution, flow equalization, neutralization, mixing, coagulation, flocculation, chemical precipitation, oxidation, recarbonization, softening, halogenation, and disinfection. Additional chapters discuss ozonation, electrolysis, sedimentation, dissolved air flotation, gravity filtration, granular activated carbon adsorption, and sludge treatment. The emphasis throughout is on developing the necessary engineering from fundamental principles of chemistry, physics, and mathematics.Two companion volumes, Air Pollution Control Engineering, Volume 1, and Advanced Air and Noise Pollution Control, Volume 2, survey the basic air pollution control technique and the use of multiple techniques to deal with air, thermal, and noise pollution.

The past 30 years have seen the emergence of a growing desire worldwide that positive actions be taken to restore and protect the environment from the degrading effects of all forms of pollution—air, water, soil, and noise. Because pollution is a direct or indirect consequence of waste, the seemingly idealistic demand for “zero discharge” can be construed as an unrealistic demand for zero waste. However, as long as waste continues to exist, we can only attempt to abate the subsequent pollution by converting it to a less noxious form. Three major questions usually arise when a particular type of pollution has been identi?ed: (1) How serious is the pollution? (2) Is the technology to abate it available? and (3) Do the costs of abatement justify the degree of abatement achieved? This book is one of the volumes of the Handbook of Environmental Engineering series. The principal intention of this series is to help readers formulate answers to the last two questions above. The traditional approach of applying tried-and-true solutions to speci?c pollution problems has been a major contributing factor to the success of environmental en- neering, and has accounted in large measure for the establishment of a “methodology of pollution control. ” However, the realization of the ever-increasing complexity and interrelated nature of current environmental problems renders it imperative that intelligent planning of pollution abatement systems be undertaken.

Leading pollution control educators and practicing professionals describe how various combinations of different physico-chemical treatment processes can be arranged to solve air, noise, and thermal pollution problems. In Advanced Physicochemical Treatment Processes, the authors discuss strategies for abating pollution by converting it into a less noxious form, using the most feasible technologies. Each chapter discusses in detail a variety of process combinations, along with technical and economic evaluations, and presents explanations of the principles behind the designs, as well as numerous variant designs useful to practicing engineers. The emphasis throughout is on developing the necessary engineering solutions from fundamental principles of chemistry, physics, and mathematics. The authors also include up-to-date references, cost data, design methods, guidance on the installation and operation of various process equipment and systems, and Best Available Technologies (BAT) for water pollution control, wastewater treatment, and water purification.

In Advanced Physiochemical Treatment Technologies, leading pollution control educators and practicing professionals describe how various combinations of different cutting-edge process systems can be arranged to solve air, noise, and thermal pollution problems. Each chapter discusses in detail the three basic forms in which pollutants and waste are manifested: gas, solid, and liquid.

Over the last 30 years, pollution and its effects on the environment have emerged as leading topics of interest. The desire for positive action to restore and protect the environment is growing worldwide. How serious are particular types of pollution? Is technology currently available to abate pollution? And do the costs of abatement justify the degree of abatement achieved? In the series, Handbook of Environmental Engineering, these questions are answered for the three basic forms of pollution and waste: gas, solid and liquid. Volume 7 in the series, Biosolids Engineering and Management, is a collection of methods of practical design, calculation and numerical examples that illustrate how organized, analytical reasoning can lead to the discovery of clear, direct solutions, especially in the areas of biosolids management, treatment, disposal and beneficial use. The book’s distinguished panel of authors provides insight into a range of topics, including sludge and biosolids transport, pumping and storage, sludge conversion to biosolids, chlorination, stabilization, regulatory requirements, costs, agricultural land application, landfill, ocean disposal, combustion, incineration and sludge treatment process selection. Along with its sister book - Volume 6, Biosolids Treatment Processes – Volume 7 is designed to be a basic biosolids treatment textbook, as well as a comprehensive reference book for advanced undergraduate and graduate students, designers of waste treatment systems, scientists and researchers. Both insightful and illuminating, Volume 7, Biosolids Engineering and Management gives state-of-the-art illustrations of the theory and practice of individual biosolids management systems and pertinent information on physical, chemical and biological treatment technologies used today.

This volume has been designed to serve as a natural resources engineering reference book as well as a supplemental textbook. This volume is part of the Handbook of Environmental Engineering series, an incredible collection of methodologies that study the effects of resources and wastes in their three basic forms: gas, solid, and liquid. It complements two other books in the series including "Natural Resources and Control Processes" and "Advances in Natural Resources Management". Together they serve as a basis for advanced study or specialized investigation of the theory and analysis of various natural resources systems.This book covers many aspects of resources conservation, treatment, recycling, and education including agricultural, industrial, municipal and natural sources. The purpose of this book is to thoroughly prepare the reader for understanding the available resources, protection, treatment and control methods, such as bee protection, water reclamation, environmental conservation, biological and natural processes, endocrine disruptor removal, thermal pollution control, thermal energy reuse, lake restoration, industrial waste treatment, agricultural waste treatment, pest and vector control, and environmental engineering education. The chapters provide information on some of the most innovative and ground-breaking advances in environmental and natural resources engineering from a panel of esteemed experts.