Preparation of porous ceramisite for waste water treatment made from red mud

Abstract

The porous ceramisites for wastewater treatment were made from red mud, which is the industrial waste discharged from the production of Al₂O₃. The sintering process and the degreasing experiments with porous ceramisites have been finished. The results show that the sintering temperature control is dominant for the preparation of the porous ceramisites. The optimal sintering temperature is between 1 110–1 120°C, a narrow range. The surface of ceramists is distributed with a lot of coarse holes with diameters of about 1–10 μm. Moreover, the sintering temperatures have a great influence on the efficiency of degreasing, and the curve between the sintering temperature and the efficiency of degreasing is like a parabola.

Keywords

red mud / porous ceramisite / oil wastewater / solid waste / recycling technology

References

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