Inventors create novel waste disposal technique

December 05, 2017 - 08:45

Hoping to turn an idea into reality, six people with the same drive and passion devoted their time to finding the optimal solution to a daily rubbish problem.

Tào Nguyên Giáp (left) and a group member put rubbish into the machine for burning. - Photo
Viet Nam News

HÀ NỘI - Hoping to turn an idea into reality, six people with the same drive and passion devoted their time to finding the optimal solution to a daily rubbish problem.

Their story begins in 2012. Đỗ Quốc Thái, 50, from Hà Nội, and five other people set up a group named Kim Cương Việt (Việt Diamond) to develop a waste treatment machine.

After years of research, they invented a technique for non-burial waste disposal.

This technology applies the principle of pyrolysis, or heat used to create pressure in waste treatment. The machine the group built can treat inorganic and organic waste such as children’s diapers or medical waste.

“The advantage of the technology is it can produce gas, crude oil and microbiological fertilizers after the burning process, and helps take metals and alloys for reuse in industry. It also costs less than modern technology,” said Thái, the head of the research team.

The machine costs about VNĐ800 million (US$35,500), he said.

The machine is made of steel with a weight of 3.2 tonnes and can handle 20 tonnes of waste a day. It includes two incinerators and a gas treatment system to ensure environmental safety.

The team has tested the machine on garbage at the Nam Sơn landfill in Hà Nội’s Sóc Sơn District and the results of analysis of crude oil and ash samples meet scientific standards.

Tào Nguyên Giáp, 29, of northern Vĩnh Phúc Province, said brick, stone, iron, glass or porcelain would be sorted before burning to take the alloys and metals for sale to recycling plants. Organic and inorganic waste would be treated to produce crude oil, gas and organic fertilizer.

Inorganic waste would be put into a machine to cut the material into small pieces and remove water before incineration.

"After burning at a temperature of thousands of degrees Celsius, the waste will turn into ash, which is then used as a material for further burning that can create crude oil, gas and potassium. Potassium will be used as a catalyst for organic waste composting within 48 hours to produce organic fertilizer for agricultural production,” Giáp told Nông Thôn Ngày Nay (Countryside Today) newspaper.

After a lot of hard work and effort, the group achieved their first success by introducing their waste treatment technology at Uy Nỗ Commune of Hà Nội’s Đông Anh District.

This year, the team has introduced their invention in northern Ninh Bình Province’s Gia Viễn and Nho Quan Districts, Tần Hương Commune in northern Thái Nguyên Province and Hà Nội’s Đông Anh and Sóc Sơn Districts, receiving high praise from locals.

They said that Thái had devoted significant time and money to the group’s research. He personally loaned hundreds of million đồng to the project.

Other members sold valuable items from their homes to pay for research, Thái said.

“In addition to studying the incinerator, each person had his own job, even living hundreds of kilometres away from Hà Nội but often meeting to discuss their project. We all have to work hard but are very happy when we can create a useful product for the community,” said Thái.

“The machine is suitable for waste treatment in communes with reasonable investment and high economic efficiency,” he added.

The group was trying to complete documents to submit to the Hà Nội Science and Technology Department for recognition and also find more collaborators to invest in and further develop the technology, Thái said.

Besides this research, the group is drafting the design of a medical waste treatment machine and a smart utility pole.– VNS