Demonstration of landfill gas-enhancement techniques in landfill simulators
Sixteen landfill test cells (lysimeters) were constructed, each to hold approximately 0.80 m/sup 3/ (1 yd/sup 3/) of shredded refuse. The lysimeters were located above ground on a concrete slab in an enclosed, temperature-controlled room. The purpose of the project was to evaluate environmental variables that have been proposed to enhance methane production. The four variables investigated were accelerated moisture addition, leachate recirculation, pH control/buffer addition, and nutrient addition. Domestic municipal refuse was shredded to a particle size of 38 to 64 mm, mixed with dry chemical additives in selected cells, and compacted. The dry chemical additives included ammonium phosphate (added as nutrient) and calcium carbonate (added as buffer). Variable quantities of infiltration water were added tp different cells each month to identify the gas-enhancement value of accelerated moisture addition. Leachate removed each month was recirculated into selected lysimeters to identify the value of this technique in the sense of adding moisture and retaining nutrients. Results indicate that significant amounts of methane were generated in the majority of the test cells. Methane production was greatest in the leachate-recycle cells, and low in most nonrecycle cells, regardless of variables such as buffer addition, nutrient addition, or high infiltration. No significant differences in methane generation were observed between the recycle cells with either nutrient or buffer additives. After 2 years, methane levels were lower than the expected range of 40 to 60%.
- Research Organization:
- SCS Engineers, Inc., Covington, KY (USA); Cincinnati Univ., OH (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- OSTI ID:
- 6632227
- Report Number(s):
- ANL/CNSV-TM-103; ON: DE83003631
- Resource Relation:
- Other Information: Portions of document are illegible
- Country of Publication:
- United States
- Language:
- English
Similar Records
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Related Subjects
LEACHATES
CHEMICAL COMPOSITION
METHANE
BIOSYNTHESIS
REFUSE DERIVED FUELS
PRODUCTION
ADDITIVES
ANAEROBIC DIGESTION
CADMIUM
CARBON
CHEMICAL OXYGEN DEMAND
CHROMIUM
COPPER
EXPERIMENTAL DATA
LEACHING
LEAD
MOISTURE
NICKEL
NITROGEN
NUTRIENTS
PH VALUE
PHOSPHATES
SANITARY LANDFILLS
SOLID WASTES
ZINC
ALKANES
BIOCONVERSION
DATA
DIGESTION
DISPERSIONS
DISSOLUTION
ELEMENTS
FUELS
HYDROCARBONS
INFORMATION
MANAGEMENT
METALS
MIXTURES
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHOSPHORUS COMPOUNDS
PROCESSING
SEPARATION PROCESSES
SOLUTIONS
SYNTHESIS
TRANSITION ELEMENTS
WASTE DISPOSAL
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
090122* - Hydrocarbon Fuels- Preparation from Wastes or Biomass- (1976-1989)