Continue dredging Sword Lake

After half a year of no progress, it is expected that by mid-July 2010, the extraction of Sword Lake by German technology will be resumed.

Sword dredging equipment must "cover" nearly half a year.Photo: Hong Quan .

Director of Hanoi Department of Science and Technology Le Xuan Rao said that from July 5, German experts trained theory and operated the system of dredging equipment for Sword Lake by underground suction technology for officials. , technician of Hanoi Water Drainage One Member Company Limited.

It is expected that on July 11, the company will continue dredging the pilot on an area of ​​1,000m ² in the south of the meaning of Dong Kinh Square.

Project of dredging pilot Sword Lake by German underground suction technology chaired by Hanoi Department of Science and Technology starting from 11/2009. The results of monitoring after sludge suction showed that the concentration of toxic algae in the lake decreased significantly, the process of sucking did not disturb the aquatic fauna in the lake, toxic gas indicators, concentration of COD, BOD . qualified.

However, due to problems in many stages, the work has to be stopped for nearly half a year. Mr. Le Xuan Rao said that the dredging of the entire Hoan Kiem Lake could not be completed before the festival of 1,000 years of Thang Long - Hanoi.