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Wastewater use in agriculture: Review of impacts and methodological issues in valuing impacts

2002
Wastewater use in agriculture: Review of impacts and methodological issues in valuing impacts

Author: Intizar Hussain

Publisher: IWMI

ISBN: 9789290904724

Category: Irrigation water

Page: 62

View: 219

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The objective of this paper is to provide a review of the characteristics of wastewater used for irrigation, and the reasoning behind the international guidelines presently used in regulating wastewater reuse for agriculture. This paper presents various systems of wastewater treatment available and discusses their benefits and shortcomings. A selective review of recent empirical studies identifies major impacts both positive and negative impacts of wastewater irrigation. Finally, the paper provides the review of environmental valuation techniques for analyzing impacts of wastewater uses in agriculture, and suggest a framework for application of some of these techniques. This framework will be applied to a developing country case study (Faisalabad area in Pakistan), in the ongoing IWMI research program.

Valuing nutrients in soil and water: Concepts and techniques with examples from IWMI studies in the developing world

2004
Valuing nutrients in soil and water: Concepts and techniques with examples from IWMI studies in the developing world

Author: Drechsel, Pay, Giordano, Mark, Gyiele, Lucy

Publisher:

ISBN: 9290905700

Category: Soil fertility

Page: 33

View: 524

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Despite the importance of nutrient-water interactions, they are often ignored in analysis. After discussing the interrelationships between soil nutrients and water and reviewing methods for determining nutrient balances, this report describes an array of available methods for soil nutrient valuation and provides a discussion of four nutrient valuation studies, which together cover a range of scales, perspectives, and geographic contexts. It also includes case studies from Ghana, Mexico, sub-Saharan Africa, and an examination of possible approaches to valuing soil organic matter and its various functions--an often ignored area in literature.

Treated Wastewater in Agriculture

2011-06-09
Treated Wastewater in Agriculture

Author: Guy Levy

Publisher: John Wiley & Sons

ISBN: 9781444322514

Category: Technology & Engineering

Page: 464

View: 792

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As the world's population increases and the demand for water increases apace there is a rising demand for information concerning the reuse of wastewater, particularly for the irrigation of key food crops worldwide. This important new book addresses in detail the use of treated wastewater in agricultural situations, its impact on crops and the soil environment. Coverage includes the composition and treatment of wastewater, health considerations, regulations and economic aspects. Major sections of the book also concentrate on crop management and the soil environment. This book is an essential purchase for all those working in irrigation, water management and crop production worldwide. Use of Treated Wastewater (TWW) for irrigation is increasingly important as the world's population increases Chapters prepared by leading scientists in the field Comprehensive coverage of current knowledge and advances in the area of TWW Focus on possible environmental impacts (positive and negative)

Use of Untreated Wastewater in Peri-urban Agriculture in Pakistan

2002
Use of Untreated Wastewater in Peri-urban Agriculture in Pakistan

Author: Jeroen H.J. Ensink

Publisher: IWMI

ISBN: 9789290905035

Category: Irrigation farming

Page: 32

View: 853

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The practice of using untreated wastewater for irrigation is widespread but has been largely ignored because the norm has always been that wastewater should be treated before use. Increasing water scarcity, lack of money for treatment and a clear willingness by farmers to use untreated wastewater have led to an uncontrolled expansion of wastewater use. It is therefore important to better document the practice of irrigation with untreated wastewater in order to find out how it can be improved within the financial possibilities of very low-income countries.

Adaptive Soil Management : From Theory to Practices

2017-03-15
Adaptive Soil Management : From Theory to Practices

Author: Amitava Rakshit

Publisher: Springer

ISBN: 9789811036385

Category: Nature

Page: 571

View: 938

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The book focuses in detail on learning and adapting through partnerships between managers, scientists, and other stakeholders who learn together how to create and maintain sustainable resource systems. As natural areas shrink and fragment, our ability to sustain economic growth and safeguard biological diversity and ecological integrity is increasingly being put to the test. In attempting to meet this unprecedented challenge, adaptive management is becoming a viable alternative for broader application. Adaptive management is an iterative decision-making process which is both operationally and conceptually simple and which incorporates users to acknowledge and account for uncertainty, and sustain an operating environment that promotes its reduction through careful planning, evaluation, and learning until the desired results are achieved. This multifaceted approach requires clearly defined management objectives to guide decisions about what actions to take, and explicit assumptions about expected outcomes to compare against actual outcomes. In this edited book, we address the issue by pursuing a holistic and systematic approach that utilizes natural resources to reap sustainable environmental, economic and social benefits for adaptive management, helping to ensure that relationships between land, water and plants are managed in ways that mimic nature.

Sustainable Agriculture

2019-01-01
Sustainable Agriculture

Author: R.S. Meena

Publisher: Scientific Publishers

ISBN: 9789388043854

Category: Technology & Engineering

Page: 390

View: 691

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The book promotes the study and application of the agro-ecology for developing alternatives to the complex problems of resource depletion, environmental degradation, a narrowing of the agrobiodiversity, consolidation, and industrialization of the food system, climate change, and the loss of farmland. This book covers food systems approaches, and seek experiences in an ecofriendly that are on-farm, participatory, change-oriented, and backed by broad-based methodologies for sustainability analysis and evaluation. The objectives of this book are: (1) to understand the role sustainable agricultural productivity, and its importance to the sustainable soil management, (2) to restore the soil health to transforming agriculture for sustainability, and (3) to understand the matching of management rules in the climatic perspective.

Balanced Urban Development: Options and Strategies for Liveable Cities

2016-08-29
Balanced Urban Development: Options and Strategies for Liveable Cities

Author: Basant Maheshwari

Publisher: Springer

ISBN: 9783319281124

Category: Architecture

Page: 601

View: 126

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This book provides a unique synthesis of concepts and tools to examine natural resource, socio-economic, legal, policy and institutional issues that are important for managing urban growth into the future. The book will particularly help the reader to understand the current issues and challenges and develop strategies and practices to cope with future pressures of urbanisation and peri-urban land, water and energy use challenges. In particular, the book will help the reader to discover underlying principles for the planning of future cities and peri-urban regions in relation to: (i) Balanced urban development policies and institutions for future cities; (ii) Understanding the effects of land use change, population increase, and water demand on the liveability of cities; (iii) Long-term planning needs and transdisciplinary approaches to ensure the secured future for generations ahead; and (iv) Strategies to adapt the cities and land, water and energy uses for viable and liveable cities. There are growing concerns about water, food security and sustainability with increased urbanisation worldwide. For cities to be liveable and sustainable into the future there is a need to maintain the natural resource base and the ecosystem services in the peri-urban areas surrounding cities. This need is increasing under the looming spectre of global warming and climate change. This book will be of interest to policy makers, urban planners, researchers, post-graduate students in urban planning, environmental and water resources management, and managers in municipal councils.

Reconsidering the Impact of Climate Change on Global Water Supply, Use, and Management

2016-11-04
Reconsidering the Impact of Climate Change on Global Water Supply, Use, and Management

Author: Rao, Prakash

Publisher: IGI Global

ISBN: 9781522510475

Category: Science

Page: 430

View: 232

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Changes in the planet’s climate in recent years have led to significant impacts on natural resources and ecosystems. New strategies must be adopted in order to support the protection and continued development of numerous natural resources. Reconsidering the Impact of Climate Change on Global Water Supply, Use, and Management is a pivotal reference source for the latest scholarly material on the relationship between global climate changes and the planet’s water ecosystems. Highlighting relevant environmental, social, and economic issues, this book is ideally designed for academics, researchers, policy makers, students, and practitioners interested in the impacts of climate change on global water resources.

Valorization of Microalgal Biomass and Wastewater Treatment

2022-09-01
Valorization of Microalgal Biomass and Wastewater Treatment

Author: Suhaib A. Bandh

Publisher: Elsevier

ISBN: 9780323914673

Category: Technology & Engineering

Page: 390

View: 352

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Valorization of Microalgal Biomass and Wastewater Treatment provides tools, techniques, data and case studies to demonstrate the use of algal biomass in the production of valuable products like biofuels, food and fertilizers, etc. Valorization has several advantages over conventional bioremediation processes as it helps reduce the costs of bioprocesses. Examples of several successfully commercialized technologies are provided throughout the book, giving insights into developing potential processes for valorization of different biomasses. Wastewater treatment by microalgae generates the biomass, which could be utilized for developing various other products, such as fertilizers and biofuels. This book will equip researchers and policymakers in the energy sector with the scientific methodology and metrics needed to develop strategies for a viable transition in the energy sector. It will be a key resource for students, researchers and practitioners seeking to deepen their knowledge on energy planning, wastewater treatment and current and future trends. Presents a detailed coverage of the tools and techniques for valarization of algal biomass Includes detailed updates on the Life Cycle Assessment of microalgal wastewater treatment and biomass valorization, its challenges, prospectus, regulations and policies Provides case studies of real-life examples for researchers to replicate and learn from

Natural Resources Management in Agriculture

2005
Natural Resources Management in Agriculture

Author: Bekele Shiferaw

Publisher: CABI

ISBN: 9780851998282

Category: Technology & Engineering

Page: 398

View: 573

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Part I: Introduction; Part II: Valuation of ecosystem services and biophysical indicators of NRM impacts; Part III: Methodological advances for a comprehensive impact assessment; Part IV: NRM impact assessment in practice.

Wastewater Reuse and Current Challenges

2016-01-28
Wastewater Reuse and Current Challenges

Author: Despo Fatta-Kassinos

Publisher: Springer

ISBN: 9783319238920

Category: Technology & Engineering

Page: 261

View: 896

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This volume discusses the current challenges related to the reuse of wastewater. It reviews the analytical methodologies for evaluating emerging contaminants and their transformation products, the sensitivity of various bioassays for assessing the biological effects of treated wastewater, and the bioavailability and uptake of organic contaminants during crop irrigation. It describes in detail the physicochemical and microbiological alterations in soil resulting from irrigation with treated urban wastewater, and discusses our current understanding of antibiotic resistance in wastewater treatment plants and in downstream environments. The book also includes an analysis of the effect of wastewater entering drinking water sources and production, and provides updated information on wastewater reuse for irrigation in North Africa. It presents an important integration tool for water recovery, known as water pinch analysis, and finally showcases two other examples of reuse – one in the paper industry and one in landfill management. It is of interest to experts from various fields of research, including analytical and environmental chemistry, toxicology and environmental and sanitary engineering.

Informal Irrigation in Urban West Africa

2006
Informal Irrigation in Urban West Africa

Author: Pay Drechsel

Publisher: IWMI

ISBN: 9789290906421

Category: Irrigation farming

Page: 43

View: 354

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This report tries to provide a state-of-the-art overview on irrigated urban agriculture in the West African subregion based on a comprehensive literature review supported by the results of three IWMI FAO projects.