VietNamNet Bridge - The number of construction projects has been increasing rapidly as a result of rapid urbanization. It is estimated that about 2,000 tons of solid construction waste are discharged each day, not including waste from transport projects and household construction works.


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About 2,000 tons of solid construction waste is discharged each day



Hanoi has only four dumping grounds: in Nguyen Khe and Van Noi of Dong Anh district in the suburbs, Vinh Quynh in Thanh Tri district and Duong Lieu in Hoai Duc district. 

A private enterprise has been treating solid construction waste with modern technology to grind and recycle waste, as it did on a site when a building at No 138 Giang Vo street was demolished.

The technology can bring three benefits – salvaging construction waste, recycling and turning it into building materials; easing the overloading at dumping grounds; and mitigating pollution as the grinding equipment is installed on the site and there is no need to carry the waste away for treatment.

Experts say the technology can bring three benefits – salvaging construction waste, recycling and turning it into building materials; easing the overloading at dumping grounds; and mitigating pollution as the grinding equipment is installed on the site and there is no need to carry the waste away for treatment.

The municipal authorities want companies to use the grinding technology to treat construction waste. However, the volume of waste treated by the technology remains very modest.

Three enterprises in Hanoi have imported solid waste grinding lines RM70GO made with German technology. However, only one of the lines has been in operation at the Hanoi Construction Waste Treatment and Investment for Environment Development JSC since November 2017. 

To date, the company has received and treated 13,000 cubic meters of construction waste from Belt Roads No 2 and No 3 projects.

According to the company’s director Dang Tien Thanh, the maximum capacity of the treatment line is 200-300 cubic meters a day. As such, the amount of waste treated is very small.

Explaining the modest volume of treated waste, Thanh said under current regulations, the owners of construction works do not have to submit plans to treat construction waste. As recycling waste is not a must, only two investors have signed contracts with the company to treat waste.

An environmental expert said the problem lies in the lack of a legal framework. Construction work owners should be required to clarify the volume of waste and the waste treatment solution. 

Meanwhile, city authorities need to set up a grinding service fee framework, so that the waste treatment fee can be taken into consideration when calculating the costs of state-funded construction works.


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