Study On Removal Of Maganese By Fast Oxidation Using Metal Oxide Coated Fiber

Nowadays, the water pollution is so serious that vital water resource such as groundwater is polluted by Manganese; since Iron is similar with Manganese in characters, they always exist geological simultaneity which has strong negative impact on the application of water resource.The removal of Manganese is always a key issue and plenty of achievement has been accomplished. But because of the high oxidation potential from Manganese (sub 2) ion to Manganese oxide, it is quite hard to be completely oxidized so as to be removed. Therefore, how to remove Manganese in a very short reaction time in order to meet the demand of modern society is still an urgent task.Combining the membrane treatment– the sunrise technology in water treatment and high-efficiency oxidation, we try to find a new solution for the removal of Manganese.Metal oxide is coated on the polymeric fiber to produce metal oxide coated fiber (MOCF). With the adsorption and catalysis ability of MOCF, oxidant such as NaClO(in catalysis-oxidation), NaMnO4 and KMnO4(in strong oxidation) is dosed to realize removal of manganese in a few seconds.Without acclimatization, MOCF is proven to have equal even better adsorption capacity than mature Manganese-Sand, especially in high Manganese concentration. MOCF also have the selective adsorption ability in multi-ion raw water, with the adsorption capacity Fe>Mn> NH4-N>K. The sorption of Manganese obeys the Freundlich Sorption Isotherm, and acts as monodentate surface complex.MOCF can improve the removal rate of Manganese in catalysis- oxidation by 20 times, and that in strong oxidation by 20%; the flexibility...