0
Your cart

Your cart is empty

Browse All Departments
Price
  • R50 - R100 (1)
  • R100 - R250 (19)
  • R250 - R500 (99)
  • R500+ (4,003)
  • -
Status
Format
Author / Contributor
Publisher

Books > Professional & Technical > Environmental engineering & technology > Sanitary & municipal engineering

Environmental and Food Safety and Security for South-East Europe and Ukraine (Hardcover, 2012 ed.): Ksenija Vitale Environmental and Food Safety and Security for South-East Europe and Ukraine (Hardcover, 2012 ed.)
Ksenija Vitale
R4,258 Discovery Miles 42 580 Ships in 10 - 15 working days

This book covers important aspects of the field of food security and safety, ranging from fundamental production, through advanced water treatment technologies and detection of novel pollutants, to management and policy making. The discussion strives to develop an integrated approach to solving the associated problems by simultaneously considering sociological, ecological and economic aspects. Special focus is on the environmental management systems that should be integrated in the processes of environmental risk assessment. Also addressed are other technologies applied in the service of detecting, preventing and monitoring possible threats to food security and safety. With its variety of subjects, this volume can serve both as a textbook for advanced studies and as a useful reference source for professionals.

Sustainable Development of Water Resources and Hydraulic Engineering in China - Proceedings for the 2016 International... Sustainable Development of Water Resources and Hydraulic Engineering in China - Proceedings for the 2016 International Conference on Water Resource and Hydraulic Engineering (Hardcover, 2019 ed.)
Wei Dong, Yanqing Lian, Yong Zhang
R5,133 R4,284 Discovery Miles 42 840 Save R849 (17%) Ships in 12 - 17 working days

This book presents the gatherings of the "2016 International Conference on Water Resource and Hydraulic Engineering," which primarily focused on the sustainable development of water resources and the environment in both China and the United States. The respective papers cover a wide variety of research areas, including watershed hydrology; river hydraulics; groundwater hydrology; water resources management and sustainability development; water supply planning under climate change; water quality analysis and water pollution; sponge city development and urban watershed management; environment and sustainability; global connections between air and water; and irrigation and drainage issues for agricultural engineering. The contributions will be of interest to a global readership and highlight the emerging problems facing developing countries, as well as research and measures to successfully deal with them and promote a greener and more eco-friendly living environment.

Biotreatment of Industrial Effluents (Hardcover): Mukesh Doble, Anil Kumar Biotreatment of Industrial Effluents (Hardcover)
Mukesh Doble, Anil Kumar
R2,709 Discovery Miles 27 090 Ships in 12 - 17 working days

With increasing government regulation of pollution, as well as willingness to levy punitive fines for transgressions, treatment of industrial waste is a important subject. This book is a single source of information on treatment procedures using biochemical means for all types of solid, liquid and gaseous contaminants generated by various chemical and allied industries.
This book is intended for practicing environmental engineers and technologists from any industry as well as researchers and professors. The topics covered include the treatment of gaseous, liquid and solid waste from a large number of chemical and allied industries that include dye stuff, chemical, alcohol, food processing, pesticide, pharmaceuticals, paint etc. Information on aerobic and anaerobic reactors and modeling and simulation of waste treatment systems are also discussed.
* Compares chemical and biochemical means of industrial waste treatment
* Provides details of technology (i.e. reactors, operating conditions etc) with regard to the biochemistry aspects.
* Can be used as a teaching aid for graduate courses and a reference material by practicing environmental scientists and engineers.
* Researchers can extract synergy between treatment procedures and various effluents.

Handbook of Research on Waste Management Techniques for Sustainability (Hardcover): Ulas Akkucuk Handbook of Research on Waste Management Techniques for Sustainability (Hardcover)
Ulas Akkucuk
R6,311 Discovery Miles 63 110 Ships in 12 - 17 working days

Sustainability is a growing area of research in ecology, economics, environmental science, business, and cultural studies. Specifically, sustainable waste disposal and management is a growing concern as both solid and liquid wastes are rapidly expanding in direct correlation with population growth and improved economic conditions across regions. The Handbook of Research on Waste Management Techniques for Sustainability explores the topic of sustainable development in an era where domestic and municipal waste is becoming a concern for both human and environmental health. Highlighting a number of topics relating to pollution, green initiatives, and waste reduction in both the public and private sector, this research-based publication is designed for use by environmental scientists, business executives, researchers, graduate-level students, and policymakers seeking the latest information on sustainability in business, medicine, agriculture, and society.

Metals in Wastes (Hardcover): Karolina Wieszczycka, Bartosz Tylkowski, Katarzyna Staszak Metals in Wastes (Hardcover)
Karolina Wieszczycka, Bartosz Tylkowski, Katarzyna Staszak; Contributions by Daria Wieczorek, Dobrawa Kwasniewska, …
R4,643 Discovery Miles 46 430 Ships in 12 - 17 working days

Metals in Wastes is an excellent guide for scientists, students, engineers, chemists, and industrial chemists who are looking for knowledge of the main sources of metals in industrial wastes. Metals are valuable materials that can be recycled again and again without degrading their properties. The recycling of metals enables us to preserve natural resources while requiring less energy to process than the manufacture of new products using virgin raw materials. A team of experts reviews the state-of-the-art and provides the readers not only with a comprehensive in-depth overview of the main composition of wastes but also discloses innovative methods which have been applied for recovery of critical and valuable metals in petrochemical industry, rubber, energy and automotive industries. This know-how could be considered as a useful reference tool for moving towards the zero-waste economy. Additionally, the book describes the economic aspects of metals recovery from various sources. This is essential for those already involved in the metals business and also for the financial, investment and advisory community internationally.

Green Materials for Wastewater Treatment (Hardcover, 1st ed. 2020): Mu Naushad, Eric Lichtfouse Green Materials for Wastewater Treatment (Hardcover, 1st ed. 2020)
Mu Naushad, Eric Lichtfouse
R4,279 Discovery Miles 42 790 Ships in 12 - 17 working days

This book reviews health hazards associated with wastewater use and water pollutants. Chapters present applications of green materials made of agricultural waste, activated carbon and magnetic materials for wastewater treatment. The removal of toxic metals using algal biomass and the removal of toxic dyes using chitosan composite materials are also discussed. The book includes reviews on the removal of phenols, pesticides, and on the use of ionic liquid-modified activated carbon for the treatment of textile wastewater.

Phosphorus Removal from Wastewater (Hardcover, New): Robert P.G. Bowker, H. David Stensel Phosphorus Removal from Wastewater (Hardcover, New)
Robert P.G. Bowker, H. David Stensel
R1,894 Discovery Miles 18 940 Ships in 12 - 17 working days

A guide to selecting the proper phosphorus removal strategy in wastewater treatment.

Environmental Impact Assessment and Management (Hardcover): B.B. Hosetti Environmental Impact Assessment and Management (Hardcover)
B.B. Hosetti
R2,071 Discovery Miles 20 710 Ships in 12 - 17 working days
Frontiers in the Science and Technology of Polymer Recycling (Hardcover, 1998 ed.): Guneri Akovali, Carlos A. Bernardo, Jacob... Frontiers in the Science and Technology of Polymer Recycling (Hardcover, 1998 ed.)
Guneri Akovali, Carlos A. Bernardo, Jacob Leidner, L.A. Utracki, Marino Xanthos
R5,720 Discovery Miles 57 200 Ships in 10 - 15 working days

Polymers, main components of plastics and rubbers, are being discarded in increasing quantities. But this waste can also be considered as plastic gold'. Public concern, coupled with the inherent value of the material, means that recycling is imperative. The present book presents a survey of current knowledge in the form of case studies, including current legal and educational issues. Topics covered also include regulation and practice in NATO countries, the economics of recycling, the reprocessing of single polymers and mixtures, and future prospects and strategies. Audience: Vital reading for all polymer scientists, technicians and engineers.

Organic Contaminants in Riverine and Groundwater Systems - Aspects of the Anthropogenic Contribution (Hardcover, 2006 ed.): Jan... Organic Contaminants in Riverine and Groundwater Systems - Aspects of the Anthropogenic Contribution (Hardcover, 2006 ed.)
Jan Schwarzbauer
R6,313 R4,365 Discovery Miles 43 650 Save R1,948 (31%) Ships in 12 - 17 working days

This book reviews a selection of organic-geochemical investigations, dealing with the characterization and environmental behaviour of organic contaminations of German river and groundwater systems. Topics include comprehensive non-target screening as well as isotope analysis of contaminants in water and sediments, detailed characterisation of bound residues, recording riverine pollution histories and an extensive application of the anthropogenic marker approach.

Sand Mining - Environmental Impacts and Selected Case Studies (Hardcover, 2014 ed.): D. Padmalal, K. Maya Sand Mining - Environmental Impacts and Selected Case Studies (Hardcover, 2014 ed.)
D. Padmalal, K. Maya
R3,914 Discovery Miles 39 140 Ships in 12 - 17 working days

This book addresses most of the environmental impacts of sand mining from small rivers The problems and solutions addressed in this book are applicable to all rivers that drain through densely populated tropical coasts undergoing rapid economic growth. Many rivers in the world are drastically being altered to levels often beyond their natural resilience capability. Among the different types of human interventions, mining of sand and gravel is the most disastrous one, as the activity threatens the very existence of river ecosystem. A better understanding of sand budget is necessary if the problems of river and coastal environments are to be solved.

Bioseparation Engineering, Volume 16 (Hardcover): I. Endo, T Nagamune, S Katoh, T Yonemoto Bioseparation Engineering, Volume 16 (Hardcover)
I. Endo, T Nagamune, S Katoh, T Yonemoto
R3,572 Discovery Miles 35 720 Ships in 12 - 17 working days

The bioseparation engineering of today includes downstream process engineering such as waste water, material and gas treatment. Taking this tendency into account, bioseparation engineers gathered in Japan as a special research group under the main theme of "Recovery and Recycle of Resources to Protect the Global Environment."


The scope of this book is based on the conference, and deals not only with recent advances in bioseparation engineering in a narrow sence, but also the environmental engineering which includes waste water treatment and bioremediation. The contributors of this book cover many disciplines such as chemical engineering, analytical chemistry, biochemistry, and microbiology.


"Bioseparation Engineering" will stimulate young engineers and scientists who will develop bioseparation engineering further in the 21st century, and contribute to a world-wide attention to the global environment

Microbial Degradation of Synthetic Dyes in Wastewaters (Hardcover, 2015 ed.): Shree Nath Singh Microbial Degradation of Synthetic Dyes in Wastewaters (Hardcover, 2015 ed.)
Shree Nath Singh
R4,481 R3,472 Discovery Miles 34 720 Save R1,009 (23%) Ships in 12 - 17 working days

Today synthetic dyes are used extensively in the textile dyeing, paper printing, color photography, pharmaceuticals, food and drink, cosmetic and leather industries. As of now, over 100,000 different dyes are available, with an annual production of over 700,000 metric tons. These industries discharge an enormous amount of colored effluents into natural water bodies, with or without treatment. The textile industry alone discharges 280,000 tons of dyes every year, making it the largest contributor to colored effluent discharge. Although a variety of treatment technologies are available, including adsorption, chemical oxidation, precipitation, coagulation, filtration electrolysis and photodegradation, biological and microbiological methods employing activated sludge, pure cultures, microbial consortia and degradative enzymes are economically viable, effective and environmentally responsible options. As such, this book gathers review articles from international experts working on the microbial degradation of synthetic dyes, offering readers the latest information on the subject. It is intended as a quick reference guide for academics, scientists and industrialists around the world.

Point of Use/Entry Treatment of Drinking Water (Hardcover, New): Us Epa Point of Use/Entry Treatment of Drinking Water (Hardcover, New)
Us Epa
R1,898 Discovery Miles 18 980 Ships in 12 - 17 working days

Provides information on the application of point-of-use (POU), and point-of-entry (POE) systems for treating drinking water. Covers administrative and technical aspects of utilizing POU/POE systems to solve small community as well as individual drinking water problems.

Sustainable Water Management in Urban Environments (Hardcover, 1st ed. 2016): Tamim Younos, Tammy E Parece Sustainable Water Management in Urban Environments (Hardcover, 1st ed. 2016)
Tamim Younos, Tammy E Parece
R7,539 R6,318 Discovery Miles 63 180 Save R1,221 (16%) Ships in 12 - 17 working days

This volume focuses on practical aspects of sustainable water management in urban areas and presents a discussion of key concepts, methodologies, and case studies of innovative and evolving technologies. Topics include: (1) challenges in urban water resiliency; (2) water and energy nexus; (3) integrated urban water management; and (4) water reuse options (black water, gray water, rainwater). This volume serves as a useful reference for students and researchers involved in holistic approaches to water management, and as a valuable guide to experts in governmental agencies as well as planners and engineers concerned with sustainable water management systems in urban environments.

Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations - Math Concepts and... Mathematics Manual for Water and Wastewater Treatment Plant Operators: Water Treatment Operations - Math Concepts and Calculations (Hardcover, 2nd edition)
Frank R Spellman
R5,290 Discovery Miles 52 900 Ships in 12 - 17 working days

To properly operate a waterworks or wastewater treatment plant and to pass the examination for a waterworks/wastewater operator's license, it is necessary to know how to perform certain calculations. All operators, at all levels of licensure, need a basic understanding of arithmetic and problem-solving techniques to solve the problems they typically encounter in the workplace. Hailed on its first publication as a masterly account written in an engaging, highly readable, user-friendly style, the Mathematics Manual for Water and Wastewater Treatment Plant Operators, Second Edition has been expanded and divided into three specialized texts that contain hundreds of worked examples presented in a step-by-step format. They are ideal for all levels of water treatment operators in training and practitioners studying for advanced licensure. In addition, they provide a handy desk reference and handheld guide for daily use in making operational math computations. This second volume, Water Treatment Operations: Math Concepts and Calculations, covers computations commonly used in water treatment with applied math problems specific to waterworks operations, allowing operators of specific unit processes to focus on their area of specialty. It explains calculations for pumping, water source and storage, coagulation and flocculation, sedimentation, filtration, chlorination, fluoridation, and water softening. The text presents math operations that progressively advance to higher, more practical applications of mathematical calculations, including math operations that operators at the highest level of licensure would be expected to know and perform. To ensure correlation to modern practice and design, this volume provides illustrative problems for commonly used waterworks treatment operations found in today's treatment facilities.

Proceedings of the 8th International Congress on Environmental Geotechnics Volume 3 - Towards a Sustainable Geoenvironment... Proceedings of the 8th International Congress on Environmental Geotechnics Volume 3 - Towards a Sustainable Geoenvironment (Hardcover, 1st ed. 2019)
Liangtong Zhan, Yun-Min Chen, Abdelmalek Bouazza
R5,546 Discovery Miles 55 460 Ships in 10 - 15 working days

This book gathers selected papers presented at the 8th International Congress on Environmental Geotechnics (ICEG), held on October 28 - November 1, 2018 in Hangzhou, China. The theme of the congress is "Towards a Sustainable Geoenvironment", which means meeting the needs of the present generation without compromising the ability of future generations to meet their own needs. Under this theme, the congress covers a broad range of topics and provides an excellent opportunity for academics, engineers, scientists, government officials, regulators, and planners to present, discuss and exchange notes on the latest advances and developments in the research and application of environmental geotechnics.

Long-Term Performance of Permeable Reactive Barriers, Volume 7 (Hardcover): K.E. Roehl, T. Meggyes, F.G. Simon, Di Stewart Long-Term Performance of Permeable Reactive Barriers, Volume 7 (Hardcover)
K.E. Roehl, T. Meggyes, F.G. Simon, Di Stewart
R3,290 Discovery Miles 32 900 Ships in 12 - 17 working days

While extensive research has been performed on many technological aspects of permeable reactive barriers and a number of contaminants have so far been successfully treated by PRB systems, long-term performance has not been extensively considered and little is known about the processes influencing long-term behaviour. This gap in our knowledge is all the more disadvantageous as design life has a decisive influence on the economic viability of PRBs.


The book describes methods for evaluation and enhancement of the long-term performance of PRB systems, especially of those targeting heavy metals, specifically uranium, and organic contaminants by sorption and/or precipitation mechanisms. Major topics in the book are:



  • Selection and characterisation of suitable reactive materials

  • Characterisation of the relevant contaminant attenuation processes

  • Developing new contaminant-binding chemical compounds ("ligands")

  • Accelerated testing methods to assess the long-term performance of the attenuation mechanisms in PRBs

  • Evaluation of the influence of site characteristics on PRB performance

  • Monitoring of existing and new field installations

  • Coupling of electrokinetic techniques and PRB systems

  • Large-scale laboratory and field tests and their results


It addresses the long-term performance of PRBs, an important feature of this novel remediation technology, systematically. It deals extensively with heavy metal removal, with special emphasis on uranium. A number of case studies, experiences with large-scale modelling and test site experiments provide insight into thepractical application of the results. This volume will contribute to the science underpinning groundwater remediation, and this will result in the improvement of quality of life and health and safety.
* A systematic approach to investigating the long-term performance of permeable reactive barriers
* Development of new contaminant-binding chemical compounds ("ligands"), accelerated testing methods to assess the long-term performance, and efficiency enhancing electrokinetic techniques
* Extensive data and information on a Hungarian uranium mining facility; once a carefully kept secret of the Soviet Union
Biosolids Engineering and Management (Hardcover, 2008 ed.): Lawrence K. Wang, Nazih K. Shammas, Yung-Tse Hung Biosolids Engineering and Management (Hardcover, 2008 ed.)
Lawrence K. Wang, Nazih K. Shammas, Yung-Tse Hung
R5,678 Discovery Miles 56 780 Ships in 10 - 15 working days

This 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 to pollution especially in the areas of biosolids management, treatment, disposal and beneficial use. The book contains an extensive collection of detailed design examples and case histories, and a distinguished panel of authors provides insight into a range of topics.

Water Policy, Imagination and Innovation - Interdisciplinary Approaches (Hardcover): Robyn Bartel, Louise Noble, Jacqueline... Water Policy, Imagination and Innovation - Interdisciplinary Approaches (Hardcover)
Robyn Bartel, Louise Noble, Jacqueline Williams, Stephen Harris
R3,896 Discovery Miles 38 960 Ships in 12 - 17 working days

This book explores creative interdisciplinary and potentially transformative solutions to the current stalemate in contemporary water policy design. A more open policy conversation about water than exists at present is proposed - one that provides a space for the role of the imagination and is inclusive - of the arts and humanities, relevant stakeholders, including landholders and Indigenous peoples, as well as science, law and economics. Written for a wide audience, including practitioners and professional readers, as well as scholars and students, the book demonstrates the value of multiple disciplines, voices, perspectives, knowledges and different ways of relating to water. It provides a fresh and timely response to the urgent need for water policy that works to achieve sustainability, and may be better able to resolve complex environmental, social and cultural water issues. Utilising a broad range of evidentiary sources and case studies from Australia, New Zealand, Canada and elsewhere, the authors of this edited collection demonstrate how new ways of thinking and imagining water are not only possible but already practised, and growing in saliency and impact. The current dominance of narrower ways of conceptualising our relationship with water is critiqued, including market valuation and water privatisation, and more innovative alternatives are described, including those that recognise the importance of place-based stories and narratives, adopt traditional ecological knowledge and relational water appreciations, and apply cutting-edge behavioural and ecological systems science. The book highlights how innovative approaches drawing on a wide range of views may counter prevailing policy myopia, enable reflexive governance and transform water policy towards addressing water security questions and the broader challenges posed by the Anthropocene and the UN Sustainable Development Goals.

Advances in Aquatic Ecology Vol. 7 (Hardcover): Vishwas B. Sakhare Advances in Aquatic Ecology Vol. 7 (Hardcover)
Vishwas B. Sakhare
R2,369 Discovery Miles 23 690 Ships in 12 - 17 working days
Sea-Dumped Chemical Weapons: Aspects, Problems and Solutions (Hardcover, 1996 ed.): A. V. Kaffka Sea-Dumped Chemical Weapons: Aspects, Problems and Solutions (Hardcover, 1996 ed.)
A. V. Kaffka
R5,531 Discovery Miles 55 310 Ships in 10 - 15 working days

This volume summarises the materials presented at the NATO Advanced Research Workshop on Sea-Dumped Chemical Munitions, held in Kaliningrad (Moscow Region), Russia, in January 1995. The conference was sponsored by the NATO Division of Scientific and Environmental Affairs in the framework of its outreach programme to develop co-operation between NATO member countries and the Cooperation Partner countries in the area of disarmament technologies. The problem of the ecological threat posed by chemical weapons (CW) dumped in the seas after the Second World War deserves considerable international attention: the amount of these weapons, many of them having been captured from the German Army, is assessed at more than three times as much as the total chemical arsenals reported by the United States and Russia. They were disposed of in the shallow depths of North European seas - areas of active fishing - in close proximity to densely populated coastlines, with no consideration of the long-term consequences. The highly toxic material have time and again showed up, for instance when retrieved occasionally in the fishing nets, attracting local media coverage only. Nevertheless, this issue has not yet been given adequate and comprehensive scientific analysis, the sea-disposed munitions are not covered by either the Chemical Weapons Convention or other arms control treaties. In fact, the problem has been neglected for a long time on the international level. Only recently were official data made available by the countries which admitted conducting dumping operations.

Groundwater in the Arab Middle East (Hardcover, 2011): Wolfgang Wagner Groundwater in the Arab Middle East (Hardcover, 2011)
Wolfgang Wagner
R4,574 R4,288 Discovery Miles 42 880 Save R286 (6%) Ships in 12 - 17 working days

The book gives an outline of prevailing hydrogeologic conditions in the Arab Middle East together with the geologic background. Emphasis is given to relationships between the main features influencing the hydrogeologic conditions - regional geologic developments, paleogeographic conditions, morphology, climate and paleo-climate - and the resulting hydrogeologic features: formation of aquifers, distribution of major aquifers, main groundwater flow systems, occurrence of renewable and fossil groundwater. Reported data on hydraulic aquifer parameters, recharge rates and groundwater flow volumes are evaluated with a view to arrive at characteristic values under the specific hydrogeologic and climatic conditions. The area considered covers approximately the Arabian Plate. Information on the following countries is included: Bahrain, Iraq, Jordan, Kuwait, Lebanon, Oman, Qatar, Saudi Arabia, Syria, United Arab Emirates, West Bank and Gaza, Yemen.

Model Predictive Control of Wastewater Systems (Hardcover, 2010 Ed.): Carlos Ocampo-Martinez Model Predictive Control of Wastewater Systems (Hardcover, 2010 Ed.)
Carlos Ocampo-Martinez
R2,815 Discovery Miles 28 150 Ships in 10 - 15 working days

The series Advances in Industrial Control aims to report and encourage technology transfer in control engineering. The rapid development of control technology has an impact on all areas of the control discipline. New theory, new controllers, actuators, sensors, new industrial processes, computer methods, new applications, new philosophies ..., new challenges. Much of this development work resides in industrial reports, feasibility study papers and the reports of advanced collaborative projects. The series offers an opportunity for researchers to present an extended exposition of such new work in all aspects of industrial control for wider and rapid dissemination. The water and wastewater industry has undergone many changes in recent years. Of particular importance has been a renewed emphasis on improving resource management with tighter regulatory controls setting new targets on pricing, industry efficiency and loss reduction for both water and wastewater with more stringent environmental discharge conditions for wastewater. Meantime, the demand for water and wastewater services grows as the population increases and wishes for improved living conditions involving, among other items, domestic appliances that use water. Consequently, the installed infrastructure of the industry has to be continuously upgraded and extended, and employed more effectively to accommodate the new demands, both in throughput and in meeting the new regulatory conditions. Investment in fixed infrastructure is capital-intensive and slow to come on-stream. One outcome of these changes and demands is that the industry is examining the potential benefits of, and in many cases using, more advanced control systems.

Trace Determination of Pesticides and their Degradation Products in Water (BOOK REPRINT), Volume 19 (Hardcover, Reprinted... Trace Determination of Pesticides and their Degradation Products in Water (BOOK REPRINT), Volume 19 (Hardcover, Reprinted edition)
Damia Barcelo; Edited by M-.C. Hennion
R6,270 Discovery Miles 62 700 Ships in 12 - 17 working days

The book covers a critical compilation of analytical methods used for the monitoring of pesticides and their degradation products in water. It contains up-to-date material and is the direct result of the authors' experience in the field of pesticide analysis. The book is structured in six chapters, starting from general aspects of pesticides like usage, physicochemical parameters and occurrence in the environment. A second chapter is devoted to sampling from water matrices, stability methods of pesticides in water and quality assurance issues. The general chromatographic methods for pesticides are reported, including the newly developed electrophoresis methods and GC-MS and LC-MS confirmatory analytical methods. Sample preparation methodologies, including off-line and on-line techniques are described in the next two chapters, with a comprehensive list of examples of pesticides and many metabolites, including the use of different GC-methods and LC-methods. The final chapter is devoted to the development of biological techniques, immunoassays and biosensors, for the trace determination of pesticides in water samples.

The book answers one of the key problems in pesticide analysis: the diversity of chemical functional groups, with varying polarity and physicochemical properties. Pesticides and their metabolites have received particular attention during the last few years in environmental trace-organic analysis. For instance, in the case of groundwater, the use of pesticides has become a cause for concern. Under the right conditions, pesticides, such as fertilizer nitrogen, can move through the soil into groundwater, a phenomenon once thought improbable. The movement of agrochemicals in surface water flow can be, in some instances, a major problem, specially in the case of water soluble pesticides that are generally transported to estuarine and coastal waters. Estuarine waters feature gradients of both pollutant concentrations and physicochemical characteristics such as salinity, turbidity and pH, and all these parameters must be carefully considered when developing methods of analysis for trace organics in estuarine waters.

One of the key parameters in analytical determination is the environmental sampling. Different protocols and devices are needed for sampling sea-water samples - usually using large sample volumes of more than 50 litres either with LLE or SPE, with the problems encountered due to dissolved and particulate matter - which is different from drinking water and well water sampling. The representativeness of the sampling is also of concern.

The sample preparation of organic compounds from water matrices has been recognized to be a bottleneck and it has been traditionally neglected in the literature. We should comment following R.W. Frie's ideas - that the most sophisticated hardware is useless if the chemistry in the protocol does not work. During the last few years new adsorbents have appeared - carbon type, polymeric sorbents with high capacity and immunosorbents - which can more efficiently trap the more polar compounds.

The development of advanced automation methods based, usually on solid phase extraction techniques - PROSPEKT, OSP-2 and ASPEC XL - are examples of commercially available equipment that are of growing importance. These systems are generally coupled to LC and GC techniques.

Sampling and sample handling can not be regarded as separate techniques in the analytical process and both should be integrated into the whole analytical determination. For this reason, validation and confirmation methods, such as mass spectrometry, either GC-MS and/or LC-MS, are needed. These serve to check the quality assurance of the developed method. The discussion between multiscreening versus specific methods of analysis and the influence of the matrix (ground-, surface- and estuarine-water), is also a point of concern due to the diversity of chemical classes within the compounds of study.

Finally the use of rapid methods of analysis, which refer basically to biological techniques, biosensors and immunoassays are also of growing interest for the determination of pesticides in environmental matrices. The rapid development of these techniques, being more sensitive and that can work at different pH and drastic environmental conditions, like very different pH and salinity values, makes that these methods are very useful and complementary to conventional GC and/or LC techniques for the determination of pesticides.

Free Delivery
Pinterest Twitter Facebook Google+
You may like...
Globalization of Water Governance in…
Vishal Narain, Chanda Gurung Goodrich, … Hardcover R3,877 Discovery Miles 38 770
Novel Solutions to Water Pollution
Satinda Ahuja, Kiril Hristovski Hardcover R5,417 Discovery Miles 54 170
Water-Resources Engineering…
David Chin Paperback R2,534 Discovery Miles 25 340
Water Governance and Civil Society…
N.C. Narayanan, S. Parasuraman, … Hardcover R2,532 Discovery Miles 25 320
SARS-CoV-2 in Water
Eiji Haramoto, Gertjan J. Medema, … Paperback R2,194 Discovery Miles 21 940
Green Technologies for the Environment
Sherine Obare, Rafael Luque Hardcover R5,414 Discovery Miles 54 140
Advanced Introduction to Water Economics…
Ariel Dinar Hardcover R2,569 Discovery Miles 25 690
Guidance on Preparing Water Service…
Kizito Masinde, Michael J Rouse, … Paperback R653 Discovery Miles 6 530
Water Resource Economics and Policy - An…
W. D. Shaw Paperback R1,344 Discovery Miles 13 440
Evolutionary Algorithms in Water…
Dasika Nagesh Kumar, Komaragiri Srinivasa Raju Paperback R2,755 Discovery Miles 27 550

 

Partners