Water and Nutrient Management in Natural and Constructed Wetlands

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Jan Vymazal
Springer Science & Business Media, Sep 23, 2010 - Technology & Engineering - 330 pages
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Wetlands provide a wide variety of ecosystem services within the landscape and their importance is commonly accepted. Among the most important are regulating services, i.e., benefits obtained from the regulation of ecosystem processes. For example, wetlands contribute to climate regulation. Land cover can affect local temperature and precipitation, wetland ecosystems may affect greenhouse gas sequestration and emissions, or affect the timing and magnitude of runoff and flooding, for example. Wetlands also improve water quality through mechanical, physical, physico-chemical, biological and biochemical processes. These abilities are also used in constructed wetlands but within a more controlled environment. In addition, wetlands provide the supporting services necessary for the production of all other ecosystem services such as soil formation and retention, nutrient cycling, primary production or water cycling. In short, wetlands are clearly among the most valuable ecosystems on Earth. In order to provide these services, wetlands need to be properly evaluated, protected and maintained. This book provides results of the latest research in wetland science around the world. Chapters deal with such topics as the use of constructed wetlands for treatment of various types of wastewater, use of constructed wetlands in agroforestry, wetland hydrology and evapotranspiration, the effect of wetlands on landscape temperature, and chemical properties of wetland soils. This book will be of interest for classes in environmental science, researchers, ecologists, landscape planners and regulators.
 

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Contents

Water Management for Changing Flow Regimes
1
2 Properties of Biosolids from Sludge Treatment Wetlands for Land Application
9
3 Process Based Models for Subsurface Flow Constructed Wetlands
21
Preliminary Results
36
5 Comparison of Performance Ageing and Eco Balance Data from Four Types of Constructed Wetlands Treating Raw Sewage
51
6 Duckweed and Algae Ponds as a PostTreatment for Metal Removal from Textile Wastewater
63
7 Diel Fluctuations of Redox Potential in a Horizontal Subsurface Flow Constructed Wetland for Wastewater Treatment
77
8 A Finite Element Approach to Modelling the Hydrological Regime in Horizontal Subsurface Flow Constructed Wetlands for Wastewater Treatment
85
14 The Concept of a SewageSludge Management System for an Individual Household
179
15 Systematic Classification Nomenclature and Reporting for Constructed Treatment Wetlands
191
16 Comparison of Temperature Regimes of Two Temperate Herbaceous Wetlands in the Course of the Growing Season
221
17 Chemical Properties of the Sediment Interstitial Water at Lake FertNeusiedler See
236
18 Water Regime Changes and the Function of an Intermittent Wetland
251
Preliminary Study
263
20 Wetland Analyses in Lake Kyoga Region and Kamuli District in Uganda
275
21 Factors Affecting Metal Mobilisation During Oxidation of Sulphidic Sandy Wetland Substrates
286

9 The Evolution of Horizontal Subsurface Flow Reed Bed Design for Tertiary Treatment of Sewage Effluents in the UK
102
Two Case Studies
121
11 Nutrient Accumulation by Phragmites australis and Phalaris arundinacea Growing in Two Constructed Wetlands for Wastewater Treatment
132
12 Efficiency of Wastewater Treatment Constructed Wetlands during NonVegetation Season in the Czech Republic
151
20 Years of Experience
168
22 The Presence of Mycorrhiza in Different Habitats of an Intermittent Aquatic Ecosystem
299
From Fishponds and Wet Meadows to Concrete Surface
309
Subject Index
327
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