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Discharge water handling and treatment: problems and solutions at a large Pittsburgh Seam coal mine.

Authors
Byars-JD; Mucho-TP; Zick-RL
Source
2001 SME Annual Meeting, February 26-28, 2001, Denver, Colorado, Preprint 01-162. Littleton, CO: Society for Mining, Metallurgy, and Exploration, 2001 Feb; :1-8
Link
NIOSHTIC No.
20021270
Abstract
Recently, a large Pittsburgh seam longwall mine was nearing depletion of a major portion of its current reserves and had begun to develop in a different direction from its original portal area to access additional reserves. This meant that a large area of the mine would be abandoned and sealed. However, continued use of the original mine portal area required that the water accumulating in the abandoned mine would eventually need to be pumped to the surface. This would be in addition to the discharge water associated with the new portion of the mine. Several pumping and sump options were investigated to handle the quantity and quality of the anticipated discharge water. This paper describes some of these options, their advantages and disadvantages, and the final engineering decisions. Some problems and unanticipated outcomes as well as the eventual solutions are discussed, including: (1) estimates of pump requirements, (2) water pool size, (3) eventual water quality, (4) anticipated inflows, and (5) integration into the overall mine water system.
Keywords
Mining-industry; Underground-mining; Longwall-mining; Mine-water; Ground-water
CAS No.
7439-89-6; 7429-90-5; 7440-70-2; 7440-23-5; 7439-95-4
Publication Date
20010226
Document Type
Conference/Symposia Proceedings
Fiscal Year
2001
NTIS Accession No.
NTIS Price
NIOSH Division
PRL
Source Name
2001 SME Annual Meeting, February 26-28, 2001, Denver, Colorado, Preprint 01-162
State
PA
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