Create biogas from wheat starch plant waste water

Associate Professor, Dr. Duong Nguyen Khang, Ho Chi Minh City Agriculture and Forestry University has just completed the system of transferring wastewater from the factory to process wheat starch into biogas.

This work is applied to a factory belonging to Binh Duong Food Production - Import Export Company Limited (Bidofood), in Tan Uyen district, Binh Duong province. The collected biogas will be used to serve the production of the powder drying and generating plants.

Tunnel transfer waste water into biogas.Photo: Thai Ngoc

This wheat starch processing plant has a capacity of 120 tons a day, although it has not operated at full capacity, but every day discharges into the environment from 1,200 - 1,400 m ³ of waste water. Dr. Khang said, wastewater will be put into bags to make biogas. After three weeks, the collected biogas will be filtered off impurities to burn.

Currently, every day the system provides about 10,000 m ^{3 of} biogas. Due to the lack of use of this gas, the flour mill currently plans to buy more generators to run on biogas sources for other activities.