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

Technical Report · Thu Mar 01 00:00:00 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
• Resource Relation: Other Information: Prepared in cooperation with Ohio State Univ., Columbus, Dept. of Civil Engineering
• Country of Publication: United States
• Language: English

Related Subjects

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