Recovery and Treatment of Garlic Oil from Garlic Slices Processing Wastewater

Abstract

China is a big producer and exporter of dehydrated garlic slices. A large amount of garlic slices processing wastewater was produced every year, which contains garlic oil. In order to recycle and utilize this resource, this paper takes the local garlic slices processing wastewater in Jinxiang County of Shandong Province as the research object, and through "Microfiltration (MF)+Distillation". The method of distillation was used to extract garlic oil from garlic slice processing wastewater, and the effect of garlic slice cleaning process on garlic oil yield in wastewater was investigated. The results showed that the yield of garlic oil could reach 0.45‰ under the optimum cleaning conditions.