Performance of paper mill sludges as landfill capping material
- Lehigh Univ., Bethlehem, PA (United States)
- Rensselaer Polytechnic Institute, Troy, NY (United States)
The high cost of waste containment has sparked interest in low cost and effective strategies of containing wastes. Paper mill sludges have been effectively used as the impermeable barrier in landfill covers. Since paper mill sludges are viewed as a waste material, the sludge is given to the landfill owner at little or no cost. Thus, when a clay soil is not locally available to use as the impermeable barrier in a cover system, paper sludge barriers can save $20,000 to $50,000 per acre in construction costs. This study looks at the utilization and performance of blended and primary paper sludge as landfill capping material. To determine the effectiveness of paper sludge as an impermeable barrier layer, test pads were constructed to simulate a typical landfill cover with paper sludge and clay as the impermeable barrier and were monitored for infiltration rates for five years. Long-term hydraulic conductivity values estimated from the leachate generation rates of the test pads indicate that paper sludge provides an acceptable hydraulic barrier.
- Research Organization:
- US Department of Energy (USDOE), Washington DC (United States)
- OSTI ID:
- 576547
- Report Number(s):
- CONF-970208-Proc.; ON: DE98001967; TRN: 98:005164
- Resource Relation:
- Conference: International containment technology conference and exhibition, St. Petersburg, FL (United States), 9-12 Feb 1997; Other Information: PBD: [1997]; Related Information: Is Part Of International Containment Technology Conference: Proceedings; PB: 1140 p.
- Country of Publication:
- United States
- Language:
- English
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