Activated Bleaching Earth, High Perfo… Activated bleaching earth, also known as activated clay made from bentonite. It is a highly active adsorbent and the most widely used in decolorization in the oil industry. Activated bleaching earth has a strong adsorption capacity for pigments in oil, especially chlorophyll and other colloidal impurities.
What is bentonite-based spent bleaching earth/clay (SBE)?
The activated or neutral form of bentonite-based spent bleaching earth/clay (SBE) is a by-product generated during the bleaching process in edible oil refinery. Its untreated form is disposed of directly at landfills involving high cost and land area, and possibly causing environmental problems.
Can bentonite clay be used as a natural remedy?
Bentonite clay as a natural remedy: A brief review. Iranian Journal of Public Health, 46(9), 1176-1183. Moshi, A. (2017). Characterization of spent bleaching earth and its utilization for improving manure-based biogas production. Biotechnology Journal International, 17(4), 1-13. A. (2011).
Why do we bleach bentonite?
The bleaching process involves the adsorption of oil impurities because of the acidity and the high surface area of activated bentonite since it is now more chemically active and eficient (Vaisali et al., 2015).
