The heat is on

Vietnamese firms develop smart waste treatment

13:00 | 13/07/2021 Environment

(VEN) - In order to develop Vietnam’s environmental industry, enterprises have been researching technological solutions to solve the solid waste problem.

vietnamese firms develop smart waste treatment
An HHK Group incinerator for treating solid waste in Thuy Nguyen District, Hai Phong City

Vietnamese technology

The Intellectual Property Office of Vietnam (IP Vietnam) recently granted a patent for a solid waste incinerator system to the HHK Group Investment and Trade Joint Stock Company in Bac Giang Province.

HHK Group Chair Ngo Thi Kim explained that the combustion technology is smokeless, odorless, and waste-free and is the result of tests conducted since 2006 on 24 incinerator models by a team of experts and engineers. The low-cost technology is highly effective with treatment capacity of over 300 tonnes of waste per day. It is especially suitable for rural areas and small and medium urban areas.

The technology is said to be better than other technologies because it creates an economic cycle. Daily household wastes are classified into two types. The non-organic waste is burned at a temperature of 900 to 1,400 degrees Celsius, thoroughly eliminating all harmful emissions. Organic waste is restored to nature using Black Solider Fly larvae and earthworms. The treatment yields by-products such as lime, activated carbon, raw materials for animal feed production, high quality organic fertilizer, and clean heat for drying and steaming agricultural products.

High heat

According to IP Vietnam, the dominant advantage of this kind of incinerator compared with others is its high combustion efficiency and the capacity to meet emission treatment requirements. The temperature of the incinerator manufactured by HHK Group has a temperature range that other incinerators can hardly reach. At this temperature, all the toxins produced in the burning process such as dioxin, furan and sulfur are completely decomposed. The exhaust gas from the incinerator meets the emission standards QCVN 06:2009/BTNMT of the Ministry of Natural Resources and Environment.

This technology can also recycle and make full use of waste products. HHK’s solid waste treatment capacity is 50 to 70 tonnes per incinerator per day. “In the near future, the company will handle the existing landfill in Thang Town, in Hiep Hoa District of the province,” said Kim.

Board Chair of HHK Group Ngo Thi Kim: The company is planning to build a solid waste treatment plant with capacity ranging from 100 to 300 tonnes a day, and a synchronous treatment system transmitting data of air and water sources to the environmental protection agencies of localities.

Minh Ky