Japanese expert calculated not to let the water wash away the results of To Lich River

Japanese experts take into account the method in the rainy season, when discharging West Lake water is not allowed to drift to the result of piloting to clean To Lich river.

Japanese experts take into account the method in the rainy season, when discharging West Lake water is not allowed to drift to the result of piloting to clean To Lich river.

It is expected that after 2 months, JV (Japan Vietnam Environment Improvement Joint Stock Company) will report to the Prime Minister and Hanoi People's Committee about the pilot project of cleaning a section of To Lich river and a corner of West Lake with technology. Japanese Nano - Bioreactor.

However, the discharge of more than 1 million cubic meters of water from the West Lake to To Lich River has affected the results, JVE must apply for a further 2 months pilot.

After postponing the announcement of the results, JVE had a press conference on West Lake yesterday to inform about the upcoming pilot plan, solutions to the upcoming flushes and storms that will not affect To Lich River.

Notice 15 minutes in advance and rinse

Mr. Nguyen Tuan Anh, Chairman of JVE Board confirmed that he did not receive the notice of discharge.

The technical staff JVE received a notice of water discharge around 9:30 am on July 9, then about 10-15 minutes later, Hanoi Drainage Company carried out the water discharge.

Picture 1 of Japanese expert calculated not to let the water wash away the results of To Lich River

Discharging 1.5 million cubic meters of West Lake water into To Lich River, Japanese experts could not cope.

According to Mr. Tuan Anh, when receiving the notice of discharge, both Japanese experts and JVE are passive, the pilot unit cannot be able to respond in 10-15 minutes.

1.5 million m 3 / day and night as in the last discharge is 10 times the amount of water flowing from 280 discharge culverts to the To Lich river. This amount of water does not flow through 280 culverts but only flows into a drain at the riverhead, exceeding the original calculation of the Japanese expert.

Japanese experts have calculated from the beginning even if the rain is heavy, the headwater flow is not so big as the direct discharge of 1.5 million cubic meters of water recently.

Dr. Takeba Akira, an advisor to the Japan Environment-Trade Promotion Organization, said: "The fact that West Lake washes away beneficial microorganisms because of Bioreactor plates activates, we do not blame any unit. This is an objective case so we are trying to fix the problem. "

Picture 2 of Japanese expert calculated not to let the water wash away the results of To Lich River

Dr. Takeba Akira.

Regarding the ongoing To Lich river cleaning projects, the Japanese expert also said that the river cleaning problem is not simply the discharge of West Lake water or cleaning with Japanese technology.

According to him, the river must have input water, but now the To Lich river relies entirely on wastewater flowing from 280 discharge culverts. Therefore, it is recommended to clean the inside of the river first and then release the water, while increasing the water flow and creating the flow for the river. Then the beneficial organisms created by the nano machines will be allocated from the beginning to the end of the source.

"2 solutions of the drainage company and Japanese experts, if combined, will revitalize the To Lich River in the right way" , Mr. Tuan Anh added.

Picture 3 of Japanese expert calculated not to let the water wash away the results of To Lich River

To Lich River conducts piloting for another 2 months.

Build "apartment buildings", do not let water swept away microorganisms

The Japanese expert has developed plans to make the Bioreactor panels in the riverbed still activate microorganisms and retain these creatures, whether it is discharging water from the West Lake or discharging more strongly, it will not be swept away. result.

The Japanese expert said: "The trial stands in the To Lich River are like apartment buildings, microorganisms are the same as the people living in the apartment building. Soon, we will apply the biological measures to prevent that apartment building from being swept away when the flood water returns.

Picture 4 of Japanese expert calculated not to let the water wash away the results of To Lich River

Biotech scaffolds will help protect and prevent water from washing beneficial microorganisms when flushing.

In terms of operating costs, Japanese experts affirmed that the project was 100% sponsored by Japan in the first place, so although Japan still continued to sponsor for 2 months, the Vietnamese side did not have to spend any cost. Come on.

Picture 5 of Japanese expert calculated not to let the water wash away the results of To Lich River

Japan still sponsors, completely free piloting the To Lich river cleaning project.

  • Hanoi rinsed the water and washed away all the experimental results of the Japanese expert in To Lich river
Update 22 July 2019
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