Method to produce landfill daily cover from sewer sludge and...

Details Method to produce landfill daily cover from sewer sludge and... Method to produce landfill daily cover from sewer sludge and...

2007-03-27

2007-03-27

Kreck, John (Department: 3673)

Hydraulic and earth engineering

Subterranean waste disposal, containment, or treatment

Waste barrier, containment, or monitoring

Reexamination Certificate

active

11002449

ABSTRACT:
Landfill daily cover and general ground cover is produced from sewer sludge and/or municipal solid waste by adding an amount of cellulose material to form a de-watered stream having a water content of about 55% or less by weight. The de-watered stream is then treated to reduce its pathogen concentration, preferably by first grinding the de-watered stream to form an average 10–50 mesh particle size stream that is then heat treated to further reduce the water content to 20%, preferably 5%–15%, by weight. To produce a daily cover a flame retardant material is added in amounts to qualify the end product as landfill daily cover.

REFERENCES:
patent: 4507127 (1985-03-01), Hirose
patent: 5354349 (1994-10-01), Inoue
patent: 5855664 (1999-01-01), Bielecki et al.
patent: 5960559 (1999-10-01), Brunnmair et al.
patent: 6058619 (2000-05-01), Krebs et al.
patent: 6174472 (2001-01-01), Johnson et al.
patent: 6316246 (2001-11-01), Hazaka

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