VietNamNet Bridge – An agricultural waste treatment that uses bioproducts has been developed by scientists from the Centre of New Material and the Ha Noi Gardening Association. 

A Vietnamese soldier feeds cattle and fowl on Da Lon Island (internationally called the Discovery Great Reef) on Vietnam’s Truong Sa (Spratly) Archipelago. — VNS Photo Doan Tung

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 controlling wastewater odor.

Vu Hoan, president of the Ha Noi 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.

Dang The Quan, head of Phu Dong Commune People’s Council, praised the innovations as a useful tool for protecting farming environments.

According to him, the two compounds are effective in sterilising lodgings and feeding equipment, cleaning sewers and reducing waste odour at the 40 dairy farms where they are used, out of the area’s 777.

At pilot spots in the districts of Quoc Oai, Soc Son and Chuong 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 Viet Nam’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.

Because of its potential, the technology was recognised by the Viet Nam Fund for Supporting Technological Creations (VIFOTECH) in 2016.

VNS