The report presents design and cost information on lime use in wastewater treatment applications. It includes design and cost information on lime handling, liquid processing, solids generation and dewatering, lime recovery and ultimate ash disposal. The report takes a design manual approach so that the information presented has maximum usefulness to environmental engineers engaged in both the conceptual and detailed design of wastewater treatment plants. Design data on alternate sludge thickening and dewatering processes are presented with special emphasis on wet classification of calcium carbonate from unwanted materials and on maximizing the dewatering of wasted solids. Alternative recalcining techniques are assessed and problem areas identified. A relatively new technique for beneficiation of the recalcined product is presented. Approaches to heat recovery are presented that minimize the net energy requirements for recalcination and incineration. A computer program for computation of solids balances is included as a design aid and two case histories are presented which portray the cost of lime treatment, sludge processing and lime reclamation.

"April 1975." "This report lists potentially hazardous materials which may be associated with the air, water, and solid waste from a refinery, a coke plant, a Lurgi high BTU gas process, and the solvent refined coal process." Includes bibliographical references.