|
Showing 1 - 7 of
7 matches in All Departments
This book presents new findings on intrinsic variability in
pollutant build-up and wash-off processes by identifying the
characteristics of underlying process mechanisms, based on the
behaviour of various-sized particles. The correlation between
build-up and wash-off processes is clearly defined using heavy
metal pollutants as a case study. The outcome of this study is an
approach developed to quantitatively assess process uncertainty,
which makes it possible to mathematically incorporate the
characteristics of variability in build-up and wash-off processes
into stormwater quality models. In addition, the approach can be
used to quantify process uncertainty as an integral aspect of
stormwater quality predictions using common uncertainty analysis
techniques. The information produced using enhanced modelling tools
will promote more informed decision-making, and thereby help to
improve urban stormwater quality.
This book presents a detailed analysis in relation to pollutant
processes and transport pathways encompassing atmospheric
pollutants, atmospheric deposition and build-up on road surfaces of
traffic generated key pollutants. The research study undertaken by
the authors created extensive knowledge relating to the relevant
processes and establishing their relationships as a chain of
processes. The information presented in this book was derived based
on comprehensive experimental investigations including field
sampling, laboratory testing, mathematical modelling and
multivariate and univariate statistical data analyses. The
knowledge presented will be of particular interest to readers such
as stormwater treatment design specialists, decision-makers and
urban planners since these outcomes provide practical suggestions
and recommendations to effective urban stormwater treatment design.
This book identifies the key hydrologic and hydraulic factors which
influence the performance of stormwater quality treatment systems
such as constructed wetlands and bioretention basins. Mathematical
relationships derived using conceptual models underpinned by
fundamental hydraulic theory are presented to predict treatment
performance. The key highlights of the book will include the
identification of the linkages between influential hydrologic and
hydraulic factors for constructed wetlands and bioretention basins
to support more accurate prediction of treatment performance and
effective design of these types of stormwater treatment systems.
Furthermore, this book will showcase an innovative approach for
using conceptual models to analyze stormwater treatment system
performance.
The key highlights of the book include an innovative rainfall
classification methodology based on stormwater quality to support
the planning and design of stormwater treatment systems.
Additionally, this book provides a practical approach to effective
stormwater treatment design and development of a methodology for
rainfall selection to optimize stormwater treatment based on both
its quality and quantity. The case study presented in this book
evaluates how pollutant buildup on urban surfaces and stormwater
runoff quality varies with a range of catchment characteristics
based on different rainfall types. The information presented will
be of particular interest to practitioners such as
stormwater-treatment designers, urban planners and hydrologic and
stormwater-quality model developers since the outcomes presented
provide practical approaches to and recommendations for urban
stormwater-quality improvement. Readers will benefit from a
state-of-the-art critical review of literature on urban stormwater
quality, an in-depth discussion on stormwater-quality processes
providing guidance for engineering practice such as stormwater
treatment design and model development, a comprehensive overview on
the application of multivariate data analysis techniques and a
paradigm of the integrated use of commercial models and
mathematical equations to undertake a comprehensive, urban
stormwater-quality investigation.
This multi-disciplinary book provides practical solutions for
safeguarding the sustainability of the urban water
environment.Firstly, the importance of the urban water environment
is highlighted and the major problems urban water bodies face and
strategies to safeguard the water environment are explored.
Secondly, the diversity of pollutants entering the water
environment through stormwater runoff are discussed and modeling
approaches for factoring in climate change and future urban and
transport scenarios are proposed. Thirdly, by linking the concepts
of sustainable urban ecosystems and sustainable urban and transport
development, capabilities of two urban sustainability assessment
models are demonstrated. To achieve sustainability of the urban
water environment and future viability of treatment strategies, a
framework that supports their adaptation to future challenges is
required. A conceptual framework which involves a decision making
cycle integrating best management practices and best planning
practices that can be adopted to ensure future adaptation is also
presented. Taking a holistic approach and with practical
applications for modeling and predictions, Sustainable Urban Water
Environment will strongly appeal to postgraduate students,
practitioners and researchers in environmental science,
environmental policy and urban transport planning. Contents:
Preface Foreword Part I: Risks and Challenges 1. Spreading
Urbanisation and the Water Environment 2. Changing Climate and the
Water Environment 3. Sustaining Urban Water Environments Part II:
Impacts and Predictions 4. Measuring Urban Water Pollutants 5.
Source Contribution of Pollutants 6. Modelling Water Pollutant
Processes Part III: Opportunities and Directions 7. Determining
Urban Sustainability Performance 8. Assessing Sustainability of
Urban Ecosystems 9. Achieving Urban Sustainability and Implications
for the Urban Water Environment 10. Conclusion: Moving Towards
Sustainable Water Futures References Index
This book presents a detailed analysis in relation to human health
risk assessment of the main toxic chemical pollutants in urban
stormwater generated from urban traffic and land use activities.
The knowledge presented in this book was derived based on
comprehensive experimental investigations including field sampling,
laboratory testing, mathematical modelling, spatial analysis and
multivariate and univariate statistical data analyses. The key
highlights of the book include the quantitative assessment of the
human health risk posed by key toxic chemical pollutants in urban
stormwater and the development of linkages between risk and traffic
and land use. Additionally, a suite of mathematical equations are
presented to predict human health risk based on traffic and land
use characteristics through mathematical modelling. These outcomes
can significantly assist in effective stormwater risk management
under changing traffic and land use in the urban environment. The
knowledge presented is of particular interest to readers such as
stormwater treatment design specialists, decision-makers and urban
planners since these outcomes provide practical suggestions and
recommendations for effective urban stormwater treatment design.
This book discusses the physicochemical changes (transformations)
that metals deposited on urban road surfaces undergo during dry
weather periods, in order to provide insights into their potential
impacts on stormwater quality. Based on extensive field
experiments, and laboratory and data analyses, it examines
transformation characteristics of metals with respect to the
particle size of road dust, antecedent dry days and land uses.
Further, it proposes a new risk-assessment methodology, improving
the original human health-risk indices based on the transformation
characteristics and potential bioavailability of metals in order to
evaluate the risks posed by metals in stormwater. This book is of
interest to researchers and decision-makers developing appropriate
pollution mitigation measures to enhance the quality of stormwater,
targeting the effective reuse of stormwater in urban areas.
|
|