Dewatering of mine drainage sludge, Phase II

Technical Report · Thu Feb 01 04:00:00 EST 1973

OSTI ID:7301575

Akers, Jr, D J; Moss, E A

A study of various acid mine drainage sludge conditioning methods and dewatering systems was made. Acid mine drainage and sludge from neutralization plants were characterized. Four sludges were selected as being representative of the various types of sludges produced by the lime/limestone neutralization of acid mine drainage. The conditioning methods studied were: freezing, use of flocculants, and use of filter aids. The six dewatering systems evaluated were: (1) conventional rotary vacuum filtration, (2) rotary precoat vacuum filtration, (3) pressure filtration, (4) porous bed filtration, (5) thermal spray drying, and (6) centrifugation. On the basis of cost, the most promising acid mine drainage sludge dewatering techniques appear to be centrifugation, rotary vacuum filtration and rotary precoat vacuum filtration. (Modified author abstract) (GRA)

• Research Organization: West Virginia Univ., Morgantown (USA). Coal Research Bureau
• OSTI ID: 7301575
• Report Number(s): PB-221145/6
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800 -- Coal
Lignite
& Peat-- Waste Management
012000* -- Coal
Lignite
& Peat-- Mining
ACID MINE DRAINAGE
CENTRIFUGATION
CHEMICAL COMPOSITION
COAL MINES
DRYING
FILTRATION
FLOCCULATION
MANAGEMENT
MINES
PH VALUE
PRECIPITATION
PROCESSING
REMOVAL
SEPARATION PROCESSES
SLUDGES
WASTE MANAGEMENT
WASTE PROCESSING
WATER REMOVAL