Utilization of geothermal waste as a silica adsorbent for biodiesel purification

The purification process of biodiesel requires an adsorbent to reduce glycerin content releasing high purity of biodiesel. The adsorbent must be affordable in source and process, readily available, and have high adsorption capacity. This paper discusses utilization of silica aerogel from geothermal waste as an adsorbent of biodiesel to reduce glycerin. The paper investigates the potential of a high silica content of geothermal waste as silica...