Use of alkaline aluminum-containing waste products of industrial plants for waste-water treatment

Journal Article · Tue Oct 20 00:00:00 EDT 1987 · J. Appl. Chem. USSR (Engl. Transl.); (United States)

OSTI ID:5036373

Shut'ko, A P; Butchenko, L I

The aim of this work was to investigate the coagulating power of sodium aluminate, and to determine the optimum dose of the reagent and pH range of the water being purified. A solution of sodium aluminate, 0.5 M as Al/sub 2/O/sub 3/, was used, prepared by dissolving aluminum metal in concentrated alkali solution. The pH of the solution obtained was 13.80 at 20/sub 0/, and the alkalinity, determined by titration of the sodium aluminate with 0.1 M hydrochloric acid solution with the use of bromophenol blue as indicator, was 3.75 g-eq/liter. The industrial coagulant used was spent solution from processes of chemical scouring of aluminum and its alloys, containing 40 g/liter of aluminum, with a pH of 13.86 and an alkalinity of 7.5 g-eq/liter. It was determined that the optimum doses were 60-90 mg/liter as Al/sub 2/O/sub 3/. The criteria of good coagulation were a formation, during 1 min, of coarse rapidly setting flakes of aluminum hydroxide, and a low residual aluminum content not exceeding 0.5 mg/liter.

• OSTI ID: 5036373
• Journal Information: J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 60:5; Other Information: Translated from Zh. Prikl. Khim.; 60: No. 5, 1070-1074(May 1987)
• Country of Publication: United States
• Language: English

Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
54 ENVIRONMENTAL SCIENCES
ADSORBENTS
WASTE PRODUCT UTILIZATION
ALUMINATES
SORPTIVE PROPERTIES
ALUMINIUM OXIDES
INDUSTRIAL WASTES
MATERIALS RECOVERY
SODIUM COMPOUNDS
WASTE WATER
FLOCCULATION
ACTIVATION ENERGY
ALUMINIUM HYDROXIDES
MATERIALS TESTING
PH VALUE
QUANTITY RATIO
WATER POLLUTION ABATEMENT
WATER TREATMENT
ALKALI METAL COMPOUNDS
ALUMINIUM COMPOUNDS
CHALCOGENIDES
ENERGY
HYDROGEN COMPOUNDS
HYDROXIDES
LIQUID WASTES
MANAGEMENT
OXIDES
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
PRECIPITATION
PROCESSING
RECOVERY
SEPARATION PROCESSES
SURFACE PROPERTIES
TESTING
WASTE MANAGEMENT
WASTE PROCESSING
WASTES
WATER
320305* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management
520200 - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)