Crude biodiesel needs to go through purification process, meet international specifications.. The widely used adsorption column is in the form of a fixed bed column, where contents are stacked mess. This makes adsorbent difficult clean and fill, irregular accumulation can hinder flow fluid be purified. In this study, an with portable circulation system observe influence level on purity biodiese...

nigella sativa (n. sativa) grows in various parts of the world, particularly in iran. it has been traditionally used as a folk remedy to treat a number of diseases. the seeds of this plant contain moisture, proteins, carbohydrates, crude fiber, alkaloids, saponins, ash, fixed oils and essential oil. the major components of the essential oil are thymoquinone, p-cymene, trans-anethole, 2-methyl-5...

New palm oil mill processes are characterized by advanced oil separation technologies with zero dilution water (‘ECO-D’ for example as a new system for oil recovery without dilution water) and continuous sterilization of the fresh fruit bunch (FFB). These processes have a deep impact on the amount and composition of waste water (POME). Compared to conventional palm oil mills the total amount of...