What’s New in the Second Edition:
This revised edition includes current design and regulatory and operational developments in the natural wastewater treatment field. It provides detailed examples and analyses along with significant operational data in each chapter. It also considers how processes provide passive treatment with a minimum of mechanical elements, and describes new approaches to partially mixed ponds, including dual-powered aeration ponds.
Introduces the planning procedures and treatment mechanisms responsible for treatment in ponds, wetlands, land application, and soil absorption systems Provides new case studies of constructed wetlands and water reuse systems Presents design criteria and methods of pond treatment and pond effluent upgrading Describes constructed wetlands design procedures, process applications, treatment performance data, and land treatment concepts and design equations Includes information on constituents of emerging concern (CEC) and their fate in natural systems
The text discusses wastewater pond systems, free water surface constructed wetlands, subsurface and vertical flow constructed wetlands, land treatment, sludge management, and onsite wastewater systems. It describes residuals and biosolids management, including nitrogen removal pretreatment methods, and uses U.S. customary and metric units in all chapters. It presents case studies of new applications of natural systems and includes worked examples of design equations for ponds and land treatment. It also provides a biosolids regulatory update from a top EPA scientist, and algae reduction technologies for ponds and wetlands.
Designed for practicing wastewater engineers and scientists involved in the planning, design, and operation of ponds, wetlands, land treatment, biosolids, and onsite soil-based treatment systems, the book integrates many natural treatment systems into one single source.
Engineers and planners eager to benefit from the cost efficiencies and convenience of land treatment of waste will find practical guidelines in this comprehensive manual. It covers soil hydraulics, vegetation selection, site selection, field investigations, preapplication treatment and storage, and transmission and distribution of wastewater.
You're introduced to:Design procedures and appropriate uses for each of the three land treatment processes: soils, plants, and microbiological agents Special attributes of food processing wastewater, with 6 case studies The use of biosolids produced by mechanical treatment systems as crop nutrients Options for preapplication treatment, including ponds and constructed wetlands Much more