A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Arsenic removal without sludge generation
A new technology for heavy metal removal has been developed. Working on the basis of fluid-bed technology, arsenic is bound to continuously generated ferric oxyhydroxide in the form of dense granules with arsenic content of 50 g As/kg or more. The inexpensive precipitation agent ferrous sulphate is used combined with a stoichiometric addition of hydrogen peroxide. The residence time in the reactor is 10 minutes and no sludge is generated, only almost water-free granules with a density of approximately 3 kg/l. Thus the requirement for disposal volume is reduced by a factor of 10.
Arsenic removal without sludge generation
A new technology for heavy metal removal has been developed. Working on the basis of fluid-bed technology, arsenic is bound to continuously generated ferric oxyhydroxide in the form of dense granules with arsenic content of 50 g As/kg or more. The inexpensive precipitation agent ferrous sulphate is used combined with a stoichiometric addition of hydrogen peroxide. The residence time in the reactor is 10 minutes and no sludge is generated, only almost water-free granules with a density of approximately 3 kg/l. Thus the requirement for disposal volume is reduced by a factor of 10.
Arsenic removal without sludge generation
Stamer, C. (author) / Nielsen, K.A. (author)
2000
3 Seiten, 5 Quellen
Conference paper
English
Arsenic removal without sludge generation
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