Filtration of slime suspension in water-treatment precipitation clarifiers
When water is treated in industrial clarifiers a slime suspension is produced that has a pH 11-12.5 and contains up to 5% solid phase. In order to utilize the excess alkalinity of the suspension and save fresh lime milk, the suspension is used to neutralize the acidic regenerates past the cation-exchanger columns. The operation of the vacuum filter is a narrow part of the wastewater treatment area. The filter cloth often gets choked, the sediment being sticky and difficult to remove from the cloth. We proposed to alter the mode of removal of the slime suspension by submitting it to filtration immediately after its exit from the clarifier. For mixing with the acidic regeneration from the cation-exchanger columns the filtrate was delivered after the vacuum filter.
- Research Organization:
- M. I. Arsenichev Dneprodzerzhinsk Industrial Institute (USSR)
- OSTI ID:
- 6327417
- Journal Information:
- J. Appl. Chem. USSR (Engl. Transl.); (United States), Vol. 60:8; Other Information: Translated from Zh. Prikl. Khim.; 60: No. 8, 1884-1886(Aug 1987)
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
WASTE WATER
FILTRATION
WATER TREATMENT PLANTS
PERFORMANCE
FABRIC FILTERS
MATERIALS RECOVERY
PRECIPITATION
REGENERATION
SEPARATION EQUIPMENT
SUSPENSIONS
WASTE MANAGEMENT
WASTE PRODUCT UTILIZATION
WATER POLLUTION ABATEMENT
DISPERSIONS
FILTERS
HYDROGEN COMPOUNDS
LIQUID WASTES
MANAGEMENT
OXYGEN COMPOUNDS
POLLUTION ABATEMENT
PROCESSING
RECOVERY
SEPARATION PROCESSES
WASTE PROCESSING
WASTES
WATER
520200* - Environment
Aquatic- Chemicals Monitoring & Transport- (-1989)
320305 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Industrial Waste Management