Coagulation and restabilization of particulate, macromolecular and protected organic aquasols by aluminum(III). Project completion report

Technical Report · Thu Mar 01 04:00:00 EST 1984

OSTI ID:6758610

Rubin, A J; Schroeder, P R

Chemical coagulation processes for the removal of particulate organic soils including suspensions of finely-ground coal, starch and mineral oil emulsions were studied. The specific objectives of the project were to examine the effects of pH, neutral salts and hydrolyzing aluminum salts on the stability of these organic colloids and to determine the mechanisms by which these aggregates operate. Stability limit diagrams were developed for each system. The principal zone of aggregation for those systems using hydrolyzing aluminum salts was the central sweep zone. For both coal and starch, aggreagation in the sweep zone was by enmeshment of the colloid in the floc particles of the aluminum hydroxide precipitate. The aggregation of simple mineral oil emulsions by aluminum sulfate was, for the most part, typical of hydrophobis soils.

• Research Organization: Ohio State Univ., Columbus (USA). Water Resources Center
• OSTI ID: 6758610
• Report Number(s): PB-84-207364; R-711522
• Country of Publication: United States
• Language: English

Related Subjects

520200* -- Environment
Aquatic-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AGGLOMERATION
CARBOHYDRATES
CARBONACEOUS MATERIALS
CHEMICAL REACTIONS
COAL
COLLOIDS
DECOMPOSITION
DIAGRAMS
DISPERSIONS
DRINKING WATER
ENERGY SOURCES
FOSSIL FUELS
FUELS
HYDROGEN COMPOUNDS
HYDROLYSIS
LYSIS
MATERIALS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PARTICULATES
PHASE DIAGRAMS
POLYSACCHARIDES
REAGENTS
REMOVAL
SACCHARIDES
SOLVOLYSIS
STABILITY
STARCH
WATER
WATER TREATMENT