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Leaching properties of substances from marine-deposited combustion wastes; Stofudvaskning fra marint deponerede forbraendingsrester

Technical Report:

Abstract

During the period 1986-1991/92, approximately 640,000 tons of coal fly ash (CFA) and 535,000 tons of municipal solid waste incinerator (MSWI) ash (fly ash and bottom ash) have been used as a filling material in a land reclamation disposal site at a new coal-fired power plant at Avedoere, Denmark. A shallow coastal area of a maximum water depth of ca. 2 m was surrounded by dikes and gradually filled up by backtipping the combustion residues to a total height of 2-3 m above sea level. The dikes and the bottom of the site are water-permeable and a top cover of clay restricts the infiltration of precipitaion into the finalized parts of the site. The leaching and hydraulic properties of the depositied residues were investigated in order to provide and estimate of the emission of selected trace elements. The results are given in detail. The composition of the leachates collected from various parts of the site appear to a certain degree to reflect the type of residues deposited. Relatively high concentrations of NVOC and ammonia-N were found in the leachates from deposited MSWI ash, whereas the presence of measurable concentrations of Cr appeared only in areas containing CFA without MSWI ash.  More>>
Publication Date:
Sep 01, 1992
Product Type:
Technical Report
Report Number:
NEI-DK-1010
Reference Number:
SCA: 540220; 540320; PA: DK-92:001851; SN: 93000917984
Resource Relation:
Other Information: DN: EFP-88; PBD: Sep 1992; Related Information: Energiministeriets Energiforskningsprogram. Miljoe og restprodukter
Subject:
54 ENVIRONMENTAL SCIENCES; FLY ASH; LEACHATES; SANITARY LANDFILLS; COAL; MUNICIPAL WASTES; COASTAL REGIONS; LEACHING; COMPILED DATA; WATER POLLUTION; 540220; 540320; CHEMICALS MONITORING AND TRANSPORT
OSTI ID:
10111459
Research Organizations:
Vandkvalitetsinstituttet, Hoersholm (Denmark)
Country of Origin:
Denmark
Language:
Danish
Other Identifying Numbers:
Other: ON: DE93752803; CNN: Contract EM-1323/88-5; TRN: DK9201851
Availability:
OSTI; NTIS
Submitting Site:
DK
Size:
161 p.
Announcement Date:

Technical Report:

Citation Formats

Aagaard Hansen, E, and Hjelmar, O. Leaching properties of substances from marine-deposited combustion wastes; Stofudvaskning fra marint deponerede forbraendingsrester. Denmark: N. p., 1992. Web.
Aagaard Hansen, E, & Hjelmar, O. Leaching properties of substances from marine-deposited combustion wastes; Stofudvaskning fra marint deponerede forbraendingsrester. Denmark.
Aagaard Hansen, E, and Hjelmar, O. 1992. "Leaching properties of substances from marine-deposited combustion wastes; Stofudvaskning fra marint deponerede forbraendingsrester." Denmark.
@misc{etde_10111459,
title = {Leaching properties of substances from marine-deposited combustion wastes; Stofudvaskning fra marint deponerede forbraendingsrester}
author = {Aagaard Hansen, E, and Hjelmar, O}
abstractNote = {During the period 1986-1991/92, approximately 640,000 tons of coal fly ash (CFA) and 535,000 tons of municipal solid waste incinerator (MSWI) ash (fly ash and bottom ash) have been used as a filling material in a land reclamation disposal site at a new coal-fired power plant at Avedoere, Denmark. A shallow coastal area of a maximum water depth of ca. 2 m was surrounded by dikes and gradually filled up by backtipping the combustion residues to a total height of 2-3 m above sea level. The dikes and the bottom of the site are water-permeable and a top cover of clay restricts the infiltration of precipitaion into the finalized parts of the site. The leaching and hydraulic properties of the depositied residues were investigated in order to provide and estimate of the emission of selected trace elements. The results are given in detail. The composition of the leachates collected from various parts of the site appear to a certain degree to reflect the type of residues deposited. Relatively high concentrations of NVOC and ammonia-N were found in the leachates from deposited MSWI ash, whereas the presence of measurable concentrations of Cr appeared only in areas containing CFA without MSWI ash. Significant differences were found between residue permeabilities determined in the field (higher) and in the laboratory (lower). One field measurement gave a permeability of ca. 10{sup -5} m/s for deposited CFA. This may have a serious impact on future evaluations of hydraulic conditions in coal fly ash disposal sites. It is recommended that it should be ensured that water displaced from the diked area will pass through deposited residues before it flows through the bottom and/or the dikes. (AB).}
place = {Denmark}
year = {1992}
month = {Sep}
}