Viet Hien Co Ltd was selected to transfer this technology at the Okozentrum Renewable Energy Research Center in Switzerland. The emissions measured at Okozentrum are met by European standards.

Statistics at the workshop "Aiming at a sustainable agro-industrial ecosystem, focusing on the Mekong River Delta Rice Value Chain" show that, each year, after the crop, Vietnam has 13.5 million rice husk, 1.35 million tons of coffee pods, not to mention the shell of other fruits such as coconut shell that most are dropped or burned. Both are polluting the environment, causing the greenhouse effect.

To solve this problem, the company has applied Flox technology and pyrolysis to waste treatment. The technology uses gas as a fuel, so it does not cause smoke. The gas is burned completely at ~ 1100^oC, so the emission of NOx, CO is extremely low. The effects of pyrolysis at a temperature of 850°C and no oxygen supply to the reaction chamber, so that carbon does not combine with oxygen to form CO₂ emitted to the environment, which is retained under biochar (a form of carbon).

On the other hand, if the controlled burning of rice husks to produce amorphous siliceous ash (ASA) could be used as a cement additive, cement replacement ... then instead of costing about $ 20 a tonne For disposal, the amorphous silica ash source can be sold for $ 200- $ 600 a tonne.

The application of Flox technology not only helps to handle waste thoroughly, reduces greenhouse gas emissions and limits environmental pollution, but also utilizes waste to generate biofuels. The husk after burning becomes biochar, when used in cultivation, will improve the soil's porosity and provide high water retention and environmental friendliness. In the past rainy season, the company's burning system has been tested very well in Binh Minh Cooperative (Dak Lak).

Not stop there, after more than one year of continuous research and development, the company has successfully built the device used to burn coffee such as coffee husks, husks, wood chips, cashew nut shell. No longer creates unpleasant odors to the surrounding environment.

Mr. Le Viet Vinh (Viet Hien Company, Dak Lak) said that the use of agricultural residues such as husk, coffee husk ... as raw material in pyrolysis technology has brought many economic benefits and environment for the company. Besides, with the cooperation and support of some domestic and foreign organizations and agencies such as UNIDO, Sofies, VNCPC ..., Viet Hien will continue to apply, research and improve Flox technology to Towards cleaner production and thoroughly using of raw materials from the production process.

CPSI Office