Disposal method and use of sewage sludge

Compositions: coating or plastic – Coating or plastic compositions – Proteinaceous material containing

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210 52, 210 66, 61 35, 106118, 106DIG1, C04B 100

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active

040281302

ABSTRACT:
Digested sewage sludge resulting from sewage plant treatment of municipal sewage is disposed of and used in an ecologically acceptable manner by the incorporation of such sludge in hardenable compositions further including, for example, lime, fly ash and, in some cases, alkaline earth metal sulfates and/or soil or other inert or complimentary additives. These hardenable compositions may be emplaced in an area open to the atmosphere and permitted to cure over a period of time to act as land fill or as road base materials.

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Kawam et al., "Feasibility of Using Sewage Sludge in Highway Embankment Construction", Feb. 1975, Interim Report, Report No. FHWA-RD-75-38, Fed. Highway Admin., Wash., D.C.
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