FABRICATION OF A NOVEL ADSORBENT FOR MAGNETICALLY REMOVAL OF CR, P AND F IONS BY USING OF NANOMAGNETITE PARTICLES INCORPORATED INTO IRON OXIDE HYDROXIDE MATERIALS

摘要

A new chemical adsorbent for fluoride, phosphate and chromium removals for use in a high magnetic filtration process was produced by applying a novel nanomagnetite aggregation processthrough the generating procedure of an iron oxide hydroxide. The experimental work to produce the new adsorbent can be divided into two sequential steps: (1) the formation of nanomagnetite particles by means of a chemical precipitation and (2) embedding the nanomagnetite particles, in a solute state, into an iron oxyhydroxide crystal aggregates, before crystallization, to form the new adsorbent.The experimental results obtained from VSM, zeta potential, adsorption trials and SEM pictures obviously reveal a great alteration in the main properties of the new adsorbent comparing to the base iron component material. The new adsorbent not only has a much higher ions adsorption capacity but also can effectively comes to work with a magnetically assisted water treating system due to its enhanced magnetic susceptibility.