With a sharp focus on environmental pollution and its impact on life and nature, scientists and engineers have studied the water treatment effect of natural wetlands for many years, resulting in the development of constructed wetlands (CWs) for treating wastewater. This informative new book provides current information and guidance on the construction, performance, operation, and maintenance of subsurface flow constructed wetlands of domestic and municipal wastewater. The focus of the volume is to evaluate the performance of horizontal subsurface flow constructed wetlands in treating domestic wastewater to establish the limit that can be safely discharged to agricultural drains. Two-step procedures were used for the preparation of this book. Using modeling and statistical analyses of treated water samples showed a significant difference between different media for the treatment of most pollutants. The authors went on to design artificial neural network models (ANNs) using Matlab software to simulate some of the experimental data and to anticipate the parameters of output concentration. The wetland systems have the ability to deal with various pollutants with different concentrations and to decrease the treated water to the standard limits. This volume presents the main role of emergent plants for treatment performance in the constructed wetlands and will be a very important resource for engineers in this field as well as for both undergraduate and graduate students.

This book is based on the thesis of Engineer Mohammed Esmail for his master of science at the faculty of engineering Mansuora University, Egypt. His work was guided in close cooperation by the principal supervisor Prof. A.Zidan. Co-supervisors were Prof. O.Rageh and Assoc.Prof .Th.Sarhan. The near shore region is highly dynamic system when waves, currents, and bathymetry interact through a complex feed back mechanism in response to changing wave climates and sediment budgets The northern Egyptian coasts are subjected to many changes on shoreline balance due to waves and coastal currents. To protect and develop these coasts, many types of breakwaters have been constructed such as groins, seawalls, detached, submerged, and shore-connected breakwaters. The built-in CGWAVE model was used to simulate the wave propagation along Ras El-Bar beach, Egypt, due to the effect of different break waters. Detached breakwaters and interaction between different systems of the existing breakwaters provide higher values of wave energy dissipation. Shoreline changes along Ras El-Bar beach were also studied under the different wave characteristics. A-R Zidan, M. Esmail

With a sharp focus on environmental pollution and its impact on life and nature, scientists and engineers have studied the water treatment effect of natural wetlands for many years, resulting in the development of constructed wetlands (CWs) for treating wastewater. This informative new book provides current information and guidance on the construction, performance, operation, and maintenance of subsurface flow constructed wetlands of domestic and municipal wastewater. The focus of the volume is to evaluate the performance of horizontal subsurface flow constructed wetlands in treating domestic wastewater to establish the limit that can be safely discharged to agricultural drains. Two-step procedures were used for the preparation of this book. Using modeling and statistical analyses of treated water samples showed a significant difference between different media for the treatment of most pollutants. The authors went on to design artificial neural network models (ANNs) using Matlab software to simulate some of the experimental data and to anticipate the parameters of output concentration. The wetland systems have the ability to deal with various pollutants with different concentrations and to decrease the treated water to the standard limits. This volume presents the main role of emergent plants for treatment performance in the constructed wetlands and will be a very important resource for engineers in this field as well as for both undergraduate and graduate students.