Preparations of Germany to rescue dirty lakes in Hanoi

Drainage Enterprise No. 4, Hanoi Sewerage One Member Co., Ltd. is cleaning Hoang Cau and Van Chuong reservoirs with new advanced Redoxy-3C technology from Germany.

After testing the treatment of lake water pollution by German Redoxy-3C technology in Ho Mo, Ba Mau and Giap Bat lakes and obtained positive results, in the afternoon of September 25, Drainage Enterprise No. 4 and Cong Hanoi Sewerage and Drainage Company Limited continues to apply this technology to clean Hoang Cau and Van Chuong lakes.

Containers of inoculants are manufactured according to the exclusive orders of Hanoi City People's Committee from Germany.This is also the first time a modern and environmentally friendly technology has been applied in Vietnam.Redoxy-3C is a German product, friendly to the environment, the composition has 3 effects: removing metal cations such as Al, As, Cd, Cu, Pb . removing armoni oxidizing the cells Inorganic and organic infections.

Workers of Hanoi Sewerage and Sewerage Company inspect the equipment and pour the product into the jacuzzi, which will be dissolved and straightened into the lake.Currently, this composition has been tested in 22 lakes and ponds in Hanoi.

The experiment in the field of Redoxy-3C inoculant in 3 steps includes taking and analyzing samples before processing, spraying and spraying Redoxy-3C, followed by sample analysis after testing.

The physico-chemical parameters do not exceed the permitted level for aquatic species to grow and develop.The floating plants on the lake are not affected, the oxygen in the country is more .

Previously, Hanoi Sewerage and Drainage One-member Co., Ltd. has treated contaminated water in 2 lakes in Dai Hoa village (Chuong My district, Hanoi).These are the first two lakes in the outskirts of Hanoi to be piloted to treat water with preparations from Germany.

After testing, alkaline pH, concentration of TSS, BOD, COD . and coliform density in reduced lakes, hydrophilic parameters did not exceed thresholds, species of aquatic life and growth were good.

Hanoi Drainage One Member Co., Ltd said after water treatment with Redoxi-3C preparations, usually after 24 hours, the lake water will be green again.Before using inoculants, the ponds and lakes will be removed several times, at different times for analysis and laboratory testing.When determining the amount of inoculant required, a new functional force science is deployed directly in ponds and lakes.Hanoi Sewerage and Drainage Company Limited said that the application of Redoxy-3C technology has brought about efficiency, the cost has decreased by about two thirds compared to the previous.