| 摘要 |
The invention relates to a process for removing the Fe (II, III) ions from aqueous systems resulting from advanced oxidation of pesticides. According to the invention, the process consists in contacting the aqueous system having a Fecontent of 10...300 mg/l with a precipitating reagent NaOH 1M, while slowly stirring for 15 min, up to a pH value of 7, the iron hydroxide solution being conditioned with sodium oleate and polyacrylamide, diluted with pressurized water wherefrom Feis separated by flotation, since it is concentrated in the foam, and is further on solubilized with HCl for 15 min, to finally result in an aqueous FeClsolution. |
