Vietnamese scientists creates new bio-based waste treatment
An agricultural waste treatment that uses bioproducts has been developed by scientists from the Centre of New Material and the Hanoi Gardening Association.
Two main inoculants, bactericidal polymer liquid Medipag – 20 and bio-activated powder Bioaktive-Eco, have been compounded by the centre to create a novel method of controling wastewater odor.Vu Hoan, President of the Hanoi Union of Science and Technology Associations, said that this model could replace old waste treatment technologies that use hazardous chemicals. Besides their technological and environmental advantages, the two compounds are affordable.
Bui Cong Khe, Director of CNM, said that the method has been used in dairy farms, poultry farms, fish cages and public landfill. Since 2014, it has been widely adopted in Gia Lam district’s Phu Dong commune and some farms in the districts of Quoc Oai and Soc Son.
The research group also conducted seven training courses for 420 trainees and transferred the technology to several other localities.
At pilot spots in the districts of Quoc Oai, Soc Son and Chương My, the technology is highly rated by farmers for its ease of use and visible effects. According to them, it improves the disease resistance of poultry and cattle, which helps to increase the quality of dairy and meat products.
The technology helped address the pollution in the landfill of Chuong My district’s Quang Bi commune and was successfully applied in the Central London Reef in Vietnam’s Truong Sa (Spratly) Archipelago.
Bioaktive-Eco has been used in livestock farms and Medipag-20 in hospitals and military trenches. Initial results from the experiment showed that the smell of dampness in the military tunnels and trenches was greatly reduced. Mosquitoes and odours in and around drainage channels were also considerably reduced. According to scientists, the two compounds are environmentally friendly and safe.
These compounds are also one of the highlighted products competing in the "Green Truong Sa" Programme in the period 2016 – 2018, launched by the Central Committee of the Ho Chi Minh Communist Youth Union in cooperation with the navy. If a pilot project in two islands of Truong Sa island district yield consistently positive results, the navy will widen the use of the products in other island localities.
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