Analysis of long-term leachate characteristics in Wisconsin Landfills

Conference · Sun Dec 31 04:00:00 EST 1995

OSTI ID:161778

Krug, M N ^[1]; Ham, R K ^[2]

---

1. CH2M Hill, Milwaukee, WI (United States)
2. Univ. of Wisconsin, Madison, WI (United States)

Leachate quality can be used as an indicator of the degree of stabilization within a landfill. Long-term leachate quality data from 13 municipal solid waste landfills, some of which have practiced co-disposal of hazardous wastes, are compiled and analyzed. The parameters summarized are indicators of decomposition and include BOD, COD, total dissolved solids, conductivity, pH, hardness, chloride, sodium, iron, cadmium, and VOCs. In general, leachate constituent concentrations tended to rise during landfill operation, reaching peak values approximately at closure, followed by a gradual decrease post-closure. More dramatic decreases for BOD, COD, hardness, iron and cadmium, and pH increases, were associated with the transition from acid anaerobic to methanogenic-dominated decomposition, which generally occurred approximately four years after closure.

• OSTI ID: 161778
• Report Number(s): CONF-950978--
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
CADMIUM
CHEMICAL COMPOSITION
CHEMICAL OXYGEN DEMAND
CHLORIDES
CONCENTRATION RATIO
CORRELATIONS
GASES
IRON
LEACHATES
METALS
ORGANIC COMPOUNDS
PH VALUE
PHYSICAL PROPERTIES
SAMPLING
SANITARY LANDFILLS
SODIUM
SOLIDS
VARIATIONS