This second volume focuses on treatment technologies that are commonly applied at hazardous waste sites and site characterization. Environmental engineers are responsible for cradle-to-grave handling and management of a hazardous waste. To fulfil this responsibility, a practicing engineer needs to apply their knowledge of federal, state, and local regulations; environmental audits; toxicology; site characterization; and treatment processes to transform the hazardous waste site to a condition where it cannot cause adverse effect to human health and the environment. Volume I of this series covered the regulatory landscape, basic environmental chemistry principles, fate and transport of contaminants, toxicology, and risk assessment. This second volume focuses on treatment technologies that are commonly applied at hazardous waste sites and site characterization. It covers physicochemical processes (air stripping, adsorption, ion exchange, and reverse osmosis), incineration, stabilization and solidification, biological treatment, and land disposal. Numerous solved examples provide a step-by-step approach to apply these technologies in real-life situations. The two volumes combined present a clear roadmap to the reader to integrate these topics in practice.