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Placement of acid spoil materials

Journal Article:

Abstract

Potentially there are several chemical and hydrologic problems associated with placement of acid spoil materials. The rationale for a deep placement well below the soil surface, and preferably below a water table, is to prevent or minimize oxidation of pyrite to sulfuric acid and associated salts by reducing the supply of oxygen. If, however, substantial sulfuric acid or associated salts are already contained within the spoil because of present or previous mining, handling and reclamation operations (or if large supplies of indigenous salts exist, placement below a water table) may actually increase the rate of acid and salt leaching. Specific placement of acid- and salt-containing spoil should be aimed at preventing contact with percolating water or rising water tables. We recommend placement based on chemical and physical spoil properties that may affect water percolation O/sub 2/ diffusion rates in the profile. Both the deeper placement of acid spoil and coarser particle size can substantially reduce the amount of acid drainage. Placement above the water table with emphasis on percolate control may be better for high sulfate spoils, while placement below the non-fluctuating water table may be better for pyritic spoils.
Publication Date:
Jun 01, 1982
Product Type:
Journal Article
Reference Number:
EDB-83-170633
Resource Relation:
Journal Name: Reclam. Reveg. Res.; (Netherlands); Journal Volume: 1:1
Subject:
54 ENVIRONMENTAL SCIENCES; 01 COAL, LIGNITE, AND PEAT; ACID MINE DRAINAGE; POLLUTION CONTROL; COAL MINING; WASTE MANAGEMENT; LAND RECLAMATION; HYDROLOGY; CHEMICAL PROPERTIES; DREDGE SPOIL; DREDGING; ENVIRONMENTAL EFFECTS; GROUND WATER; OXIDATION; PHYSICAL PROPERTIES; SOIL CHEMISTRY; SULFIDES; WATER POLLUTION; WATER TABLES; CHALCOGENIDES; CHEMICAL REACTIONS; CHEMISTRY; CONTROL; HYDROGEN COMPOUNDS; MANAGEMENT; MINING; OXYGEN COMPOUNDS; POLLUTION; SULFUR COMPOUNDS; WATER; 520200* - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989); 520500 - Environment, Aquatic- Site Resource & Use Studies- (-1989); 010800 - Coal, Lignite, & Peat- Waste Management
OSTI ID:
5856455
Research Organizations:
USDA-SEA-AR, University Park, PA
Country of Origin:
Netherlands
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: RRRED
Submitting Site:
HEDB
Size:
Pages: 3-17
Announcement Date:

Journal Article:

Citation Formats

Pionke, H B, and Rogowski, A S. Placement of acid spoil materials. Netherlands: N. p., 1982. Web.
Pionke, H B, & Rogowski, A S. Placement of acid spoil materials. Netherlands.
Pionke, H B, and Rogowski, A S. 1982. "Placement of acid spoil materials." Netherlands.
@misc{etde_5856455,
title = {Placement of acid spoil materials}
author = {Pionke, H B, and Rogowski, A S}
abstractNote = {Potentially there are several chemical and hydrologic problems associated with placement of acid spoil materials. The rationale for a deep placement well below the soil surface, and preferably below a water table, is to prevent or minimize oxidation of pyrite to sulfuric acid and associated salts by reducing the supply of oxygen. If, however, substantial sulfuric acid or associated salts are already contained within the spoil because of present or previous mining, handling and reclamation operations (or if large supplies of indigenous salts exist, placement below a water table) may actually increase the rate of acid and salt leaching. Specific placement of acid- and salt-containing spoil should be aimed at preventing contact with percolating water or rising water tables. We recommend placement based on chemical and physical spoil properties that may affect water percolation O/sub 2/ diffusion rates in the profile. Both the deeper placement of acid spoil and coarser particle size can substantially reduce the amount of acid drainage. Placement above the water table with emphasis on percolate control may be better for high sulfate spoils, while placement below the non-fluctuating water table may be better for pyritic spoils.}
journal = {Reclam. Reveg. Res.; (Netherlands)}
volume = {1:1}
journal type = {AC}
place = {Netherlands}
year = {1982}
month = {Jun}
}