Removal of phosphate from waters by precipitation and high gradient magnetic separation
作者： Ahamad M.H. Shaikh , S.G. Dixit
DOI: 10.1016/0043-1354(92)90016-W
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摘要: Abstract Orthophosphate and hexametaphosphate from waters have been removed by precipitation with aluminium sulphate calcium nitrate, respectively, subsequent removal a high gradient magnetic separator using magnetite as the seeding material. The is strongly dependent on pH. pH for maximum of orthophosphate was 4, whereas 12. has attributed to predominance hydroxy dihydrogen phosphate species in case apatite hexametaphosphate. infrared spectra indicate formation these precipitates. very efficient large throughputs can be achieved.
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