return icon

Coal-fired thermopower may kill aquaculture in Mekong Delta

Aquaculture is one of the economic pillars and important livelihoods of the Mekong Delta. However, it is threatened by coal-fired thermopower plants.

Nguyen Huu Thien, an independent expert on Mekong Delta’s ecology, has presented a report on the negative impact of the development of coal-fired thermopower plants on aquatic resources in the region.



Coal-fired thermopower projects in Mekong Delta


He warned that coal-fired thermopower plants will cause thermal pollution to the water environment, thereby affecting the ecosystem and aquatic resources in the Mekong Delta.

The water for power plants is taken directly from Hau and Tien Rivers. After it is used to cool machines, it returns to the rivers with a temperature higher by 7oC, causing thermal pollution. This worsens water quality.

If Vietnam doesn’t restrict the number of coal-fired power plants, in 2020-2050, the total volume of cooling water would increase by 21.8 billion cubic meters, or 4.5 percent of Mekong’s total water volume of 475 billion cubic meters per year.

Aquaculture is one of the economic pillars and important livelihoods of the Mekong Delta. However, it is threatened by coal-fired thermopower plants.

The volume of Mekong water entering the Vietnamese territory changes greatly by season and year by year.

According to the National Meteorological Center, the total flow of the six months in the dry season in Mekong Delta in 1994 - 2012 was 150 billion cubic meters at the highest and 79 billion cubic meters at the lowest. Of this, the flow through Hau River accounts for 49 percent, or 73 billion cubic meters.

Thien estimated that at Long Phu Thermopower Center on Tran De feeder, the temperature could be up to 31.8-32.07oC, which may seriously affect aquatic resources.

Many hydropower plants are being built on Tran De feeder. Estuaries are one of the richest fisheries resources. Many aquatic species move in and out through estuaries, from the sea to the river and from the river to the sea. The damages caused by thermal pollution remain immeasurable, but are certainly very high.

These figures have been calculated based on normal weather conditions. In special cases, especially in drought conditions as in 2016, the influences would be more severe.

Supercritical technology is considered the most advanced technology applied at thermopower plants. The biggest advantage of the technology is that it emits less ash and dust, and is believed to cause minimum impact on the environment.

However, Thien believes that the technology cannot prevent thermal pollution. If many power plants discharge cooling water into the same water bodies, the total thermal pollution will still exceed the level the ecosystem can bear.

In natural environments, aquatic organisms live and grow within a narrow range of temperature, and some heat-sensitive species will die from changes in temperatures.

Chi Mai


Social organizations propose to stop licensing new coal-fired thermopower projects

Social organizations propose to stop licensing new coal-fired thermopower projects

Since the government is pursuing a consistent policy not to sacrifice the environment for economic development, coal-fired thermopower projects will no longer be developed.

Thermopower plants, coal consumers and air polluters

Thermopower plants, coal consumers and air polluters

While developed countries are cutting the number of coal-fired thermopower plants for fear about environment pollution, Vietnam is still building more plants.


Vietnamese poetry collection published in Canada

A poetry collection from five female translators based in Hanoi, entitled Ngũ Sắc Ánh Sáng (5 Sights of Light), has been introduced to Canadian readers by Ukiyoto Publishing.

Multi-billion thermal power project needs more capital

The Ministry of Industry and Trade (MOIT) has asked for ministries' opinions on solutions to problems related to the balance sheet of the Vung Ang 1 thermal-power plant.

The best September photos on VietNamNet

Hot air balloons with the Vietnamese national flag of 1,800m2 on the banks of the Saigon River, Typhoon Noru making landfall in Quang Nam Province, the roofs of many houses being blown away...

BSR to expand Dung Quat Oil Refinery

The Ministry of Industry and Trade (MOIT) has asked Binh Son Refining and Petrochemical JSC (BSR) to clarify some issues related to its project on expanding Dung Quat Oil Refinery.

Dutch conductor to lead concert at Opera House

Conductor Leon Bosch from the Netherlands will lead a concert featuring masterpieces by European composers at the HCM City Opera House on Saturday, October 8.

‘578’ to represent Vietnam at Oscars

An action film starring Miss Universe Vietnam 2018, H'hen Niê, 578: Phát Đạn Của Kẻ Điên (578: Magnum), has been selected as Vietnamese representative at the 95th Oscars, 2023.

USD surges to VND24,000, US$1.7 billion withdrawn from circulation

The State Bank of Vietnam (SBV) withdrew nearly VND41 trillion ($1.7 billion) through open market operations as the US dollar rose to over VND24,000 on September 26-30, 2022.

HCM City to build a series of new traffic projects

HCM City is speeding up procedures to start the construction of key traffic works at gateways by the end of the year, according to HCM City's Department of Transport.

Burning garbage in Hanoi threatens residents' health, property

There have been consecutive fires caused by people's poor awareness, who were burning garbage and straw in residential areas, causing fires recently in Hanoi.

New cargo airline still waiting for license

After the Prime Minister agrees on the establishment of IPP Air Cargo, the Ministry of Transport (MOT) will implement procedures to grant a license to the air carrier, according to MOT Deputy Minister Le Dinh Tho.

Master plan for Mekong Delta focuses on infrastructure development

The Master Plan for the Mekong Delta designed for 2021-2030, with a vision to 2050, is focused on infrastructure development.

Current monetary policy quite suitable

Many people are concerned whether the country will face a tighter monetary policy and higher exchange and interest rates in the near future.

Danang, a wedding destination for India’s billionaires

Could Danang be the wedding destination of choice for Indian billionaires? It certainly has the right hotels and quality wedding infrastructure for the purpose, an Indian tourism company representative said.

Big shortage of human resources for artificial intelligence

Vietnam is facing a big shortage of human resources for artificial intelligence.

VN to improve science and technology market to reduce reliance on imports

Vietnam plans to focus on improving the science and technology market with the establishment of three trading platforms in order to reduce reliance on imports, Minister of Science and Technology Huynh Thanh Dat has said.