Documents Awareness - Knowledge

To Lich clean-up infeasible expert claims

02 June 2019 | 08:03:00 AM

The project to clean up To Lich River in Hanoi using the Japanese bio-nanotechnology would be infeasible if wastewater is still directly discharged into the river, said Dr. Nguyen Quang Hai, a senior expert in water pollution treatment.


Khai said that he welcomed the attempt to deal with the pollution in the To Lich River.


Dr. Nguyen Khai

Recently, Nhat Viet Environment Improvement Joint Stock Company, which has been assigned to carry out Japanese-funded To Lich cleanup project, conducted a pilot installation of the Japanese bio-nanotechnology equipment in the river.

The equipment includes an aerator that employs nanotechnology to quickly treat water using natural materials.

According to Khai, it is necessary to clarify the composition of the chemical powder used for the cleanup.


To Lich River's pollution is being treated by the Japanese technology

The project has been carried out the first 300 metres of the river, so it was essential to announce how much would it cost and how many cubic metres of water would be sterilised during the two-month process?

Khai recalled the image of To Lich River between 1995-1980 when many local residents used to bathe and catch fish. At that time, the Red River water still flowed into the river and almost no factories were built along the riverbanks. However, after that, the river bed has been narrowed and polluted as more plants and factories were located beside the river.

Water from Red River has stopped flowing into To Lich River and the direct discharge of untreated wastewater from households and factories are the two main causes of severe pollution.

In Khai’s opinion, it would be infeasible for the project as the river’s water level remained quite low and full of wastewater. To revive the river, the city needed a more comprehensive solution. However, the city should build a system to collect and treat the wastewater before discharging the river. It would also be necessary to resume the water supply from the Red River into the To Lich River.

The proposal to pump water from Red River into To Lich River is a good method, Khai said. But this should be carefully considered as the Red River is also polluted.


Views: 121

Other news

Climate change adaptation – important pillar of Viet Nam-Netherlands ties

(13/09/2019 09:13:AM )

Ministry gets tough on nature preservation violations

(09/09/2019 10:04:AM )

Eco-fuel and plastic bags face sluggish consumption

(01/09/2019 07:36:AM )

Ministry set to cut down hospital solid waste

(20/08/2019 02:32:PM )

Dalat crops damaged by post-flood litter

(16/08/2019 02:09:PM )

Wild monkeys changing eating habits in Da Nang peninsula

(16/08/2019 02:05:PM )

Young people save Danang coral reefs

(02/08/2019 02:14:AM )

Young people save Danang coral reefs

(29/07/2019 12:33:AM )

France continues assisting Hanoi in air quality monitoring

(18/07/2019 10:51:AM )


Environmental Sustainability - we have choices

See more


MONRE supports and appreciates the cooperation...

VACNE, 4/12/2017) - The Ministry of Natural Resources...

See more
US Assistant Secretary of State and 10 Ambassadors...

Quang Binh provincial People's Committee on March 8th announced...

See more
Save the Dong Nai River: experts

HA NOI (VNS) — Scientist and experts have renewed their calls to the National Assembly and the Government...

See more
Some pictures of Starting Ceremony of Cycling...

(VACNE) - Afternoon of 22/07/2014, under...

See more