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The effectiveness of chelating agents upon foam separation of heavy metals from waters

Conference ·
OSTI ID:5744408
;
Three types of chelating agents, EDTA, NDDTC, and CA with different concentration ratios with respect to the metal ions were used to separate the heavy metals from water by foaming. Under certain conditions it was possible to obtain a distribution ratio for cadmium ions up to three orders of magnitude between the foamed complex and the raffinate. These studies were performed with ion concentrations between 1-50 PPM and chelate to ion ratios of 10 to 2500 by weight.
OSTI ID:
5744408
Report Number(s):
CONF-860826-
Country of Publication:
United States
Language:
English

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Related Subjects

32 ENERGY CONSERVATION, CONSUMPTION, AND UTILIZATION
320305* -- Energy Conservation
Consumption
& Utilization-- Industrial & Agricultural Processes-- Industrial Waste Management
320604 -- Energy Conservation
Consumption
& Utilization-- Municipalities & Community Systems-- Municipal Waste Management-- (1980-)
AMINO ACIDS
CADMIUM COMPOUNDS
CARBOXYLIC ACIDS
CHELATING AGENTS
COLLOIDS
CONCENTRATION RATIO
DEMETALLIZATION
DISPERSIONS
EDTA
ELEMENTS
FOAMS
HYDROGEN COMPOUNDS
LIQUID WASTES
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
REMOVAL
SEPARATION PROCESSES
WASTE WATER
WASTES
WATER
WATER TREATMENT