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DESIGN MANUAL: DEWATERING MUNICIPAL WASTEWATER SLUDGES
Citation:
Albertson, O., B. Burris, S. Reed, J. Semon, J. Smith, Jr., AND A. Wallace. DESIGN MANUAL: DEWATERING MUNICIPAL WASTEWATER SLUDGES. EPA/625/1-87/014 (NTIS PB95186417), 1987.
Impact/Purpose:
information
Description:
This manual discusses the many factors involved in selecting and designing dewatering equipment for organic sludges produced during primary and secondary municipal wastewater treatment. ive-step approach is outlined for the selection and design of the dewatering equipment for either new or existing treatment facilities. hese steps are: initial screening; initial cost evaluation; laboratory testing; field level testing; and final evaluation based on detailed design parameters. lso included in the manual is a discussion of sludge characteristics which would affect dewatering, brief descriptions of dewatering processes, and discussion of the capabilities of those dewatering processes. onditioning chemicals, energy requirements, and typical dosages used in sludge dewatering are also discussed. o illustrate the relative costs of different treatment, transport, and disposal systems, comparative cost estimates are presented for 1, 5, and 50 ton/day capacity sludge treatment systems. ummary of nine side-by-side comparisons of different dewatering techniques is also presented to illustrate recent trends in the selection of dewatering equipment. n appendix containing capital and operation and maintenance cost curves for eight dewatering processes is included.