ABSTRACT

This is an introductory chapter to provide prospective on wastewater treatment objectives and regulations, basic design considerations, and processes used for wastewater treatment. The topics covered in this chapter are: wastewater treatment objectives and regulations; basic design considerations to include current and future trends in population growth, design period, wastewater characteristics and degree of treatment, treatment processes selection and combination, and other design factors; service area, treatment plant site selection, regulatory requirements and effluent discharge limitations; residuals production, handling and processing technology selection and combinations, and final disposal and reuse of biosolids; plant layout, plant hydraulics, flow through conduits, pumping, and flow measurement; energy and resource requirements, plant economics, and environmental impact assessment; general considerations in plant planning, design, and construction management. Also, discussed in Chapter 6, are the objectives of a wastewater treatment plant, which are to meet the federal, state, and regulatory authority standards in addition to preventing adverse environmental conditions.