Reduction of COD in leachate from a hazardous waste landfill adjacent to a coke-making facility

Book · Fri Dec 01 04:00:00 EST 1995

OSTI ID:129094

Banerjee, K; O`Toole, T J ^[1]

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1. Chester Environmental, Moon Township, PA (United States)

A hazardous waste landfill adjacent to a coke manufacturing facility was in operation between July 1990 and December 1991. A system was constructed to collect and treat the leachate from the landfill prior to discharge to the river. Occasionally, the discharge from the treatment facility exceeded the permit limitations for Chemical Oxygen Demand (COD), Biochemical Oxygen Demand (BOD), and Total Organic Carbon (TOC). The objectives of this study were to determine treatment methods which would enable compliance with the applicable discharge limits; to establish the desired operating conditions of the process; and to investigate the effect of various parameters such as pH, catalyst dosage, and reaction time on the COD destruction efficiency. The characteristics of the landfill leachate in question were significantly variable in terms of chemical composition. A review of the influent quality data suggests that the COD concentration ranges between 80 and 390 mg/l. The oxidation processes using Fenton`s reagent or a combination of UV/hydrogen peroxide/catalyst are capable of reducing the COD concentration of the leachate below the discharge limitation of 35 mg/l. The estimated capital cost associated with the Fenton`s reagent process is approximately $525,000, and the annual operating and maintenance cost is $560,000. The estimated capital cost for the UV/hydrogen peroxide/catalyst treatment system is $565,000. The annual operating and maintenance cost of this process would be approximately $430,000.

• OSTI ID: 129094
• Report Number(s): CONF-9504182--; ISBN 0-932897-99-1
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
CAPITALIZED COST
COKING PLANTS
EXPERIMENTAL DATA
HYDROGEN PEROXIDE
IRON SULFATES
LEACHATES
LIMITING VALUES
OPERATING COST
OXIDATION
POLLUTION REGULATIONS
SANITARY LANDFILLS
ULTRAVIOLET RADIATION
WATER TREATMENT
WATER TREATMENT PLANTS