| Description |
1 online resource |
| Contents |
Cover; Copyright; Contents; About the Authors; Preface; Chapter 1: Introduction; 1.1 The Water-Energy Nexus; 1.2 China's Urban Water System; 1.3 Scope; 1.4 Summary; Chapter 2: Energy for water supply; 2 .1 Energy for Water Supply; 2.2 Sourcing Water; 2.2.1 Sourcing groundwater; 2.2.2 Sourcing surface water: Short and long distance; 2.2.3 Harvesting rainwater; 2.3 Treating Water; 2.3.1 Treating groundwater and surface water; 2.3.2 Treating seawater; 2.3.2.1 Reverse osmosis; 2.3.2.2 Multi-effect distillation; 2.4 Distributing Water |
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2.4.1 Distributing water in the central water distribution system2.4.2 Distributing water in high-rise buildings; 2.4.2.1 Common types of high-rise pumping systems; 2.4.2.2 Energy used by high-rise pumping systems; 2.4.2.3 High-rise pumping within the urban water cycle; 2.5 Chapter Summary; Chapter 3: Factors that may influence electricity use for water supply; 3.1 Data; 3.2 Correlation Analysis; 3.3 Electricity Use and Scope; 3.4 Relationship between Electricity Use and Population Supplied; 3.5 Relationship between Electricity Use and Pipe Length |
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3.6 Relationship between Electricity Use and Water Loss3.7 Relationship between Electricity Use and Water Use; 3.8 Chapter Summary; Chapter 4: Comparison of electricity for water supply between water sources and countries; 4.1 Comparison of Electricity Use for Different Water Sources; 4.2 Comparison of Electricity Use and Emissions for Water Supply in Different Countries; 4.2.1 Electricity use; 4.2.2 Greenhouse gas emissions; 4.3 Chapter Summary; Chapter 5: Energy for wastewater treatment; 5.1 Wastewater Treatment in China; 5.2 Pretreatment and Primary Treatment; 5.3 Secondary Treatment |
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5.3.1 Secondary treatment -- Removal of organics5.3.2 Secondary treatment -- removal of nutrients; 5.4 Tertiary Treatment; 5.5 Sludge Treatment and Disposal; 5.6 Chapter Summary; Chapter 6: Evaluating the environmental benefit and energy footprint of stricter wastewater standards; 6.1 Evolution in Wastewater Treatment Standards; 6.2 Recent Changes to Chinese Urban Wastewater Discharge Standards; 6.3 Estimating Difference in Electricity for Two Standards; 6.3.1 Method; 6.3.2 Case study results; 6.4 Estimating Total Change in Electricity Use Due to Change in Standard; 6.4.1 Method |
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6.4.2 Case study results6.5 Assessing Environmental Benefit and How to Increase It; 6.5.1 Method; 6.5.2 Case study results; 6.6 Chapter Summary; Chapter 7: Reducing net energy use for water supply; 7.1 Save Energy by Reducing Leakage; 7.2 Minimise Energy Used for Desalination; 7.2.1 Use energy recovery devices in reverse osmosis; 7.2.2 Further investigate coupling of solar energy and desalination; 7.2.3 Capture waste heat or electricity for use in distillation; 7.3 Use Energy Efficient Pumping Systems in High-rise Buildings; 7.3.1 Be aware of the increasing need for high-rise pumping |
| Summary |
Cities use large amounts of costly energy to supply water and treat wastewater, especially in China, one of the world's largest providers of urban water and sanitation services. Reducing Energy for Urban Water and Wastewater shows how cities can reduce energy use, cut costs and curb greenhouse gas emissions. First, it guides the reader through water supply and wastewater treatment, explaining how energy is used at each step. Then the authors: * Outline the most effective ideas for reducing energy use in cities, using China as a case study. * Provide a decision-making framework to help cities focus their efforts. * Investigate an often-overlooked high energy user in dense cities and suggest a way to cut energy. * Assess the unintended downside of stricter wastewater standards and how to optimise the upside. * Provide suggestions for increasing water and energy recovery in water-scarce cities. The focus throughout is China, the biggest greenhouse gas emitter in the world |
| Bibliography |
Includes bibliographical references and index |
| Notes |
Online resource; title from digital title page (viewed on November 18, 2019) |
| Subject |
Water treatment plants -- Energy conservation -- China
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Sewage disposal plants -- Energy conservation -- China
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Water supply & treatment.
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Sewage disposal plants -- Energy conservation
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Water treatment plants -- Energy conservation
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Water supply & treatment.
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Environment and Ecology.
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China
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| Form |
Electronic book
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| Author |
Liu, Shuming, author.
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| ISBN |
9781780409948 |
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178040994X |
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