Photo illustration.

Accordingly, probiotics Redoxy -3C was piloted in Lake of Giap Bat and Ho Me, Ba Mau. Test results showed that alkaline pH, concentration of TSS, BOD, COD and coliform density in the reservoir decreased, physical and chemical parameters did not exceed, species, aquariums grew and developed well.

Lake water quality after treatment is maintained, make sure no to waste investment, should continue sanitation trash on the lake, supplement periodically preparations and etc. But can confirm that this is the promising solution, does not take much time, effort, easy to do, takes less manpower, reduces costs.

With this success, the next time Hanoi is expected to use the special preparations to handle replication pollution in lakes, the water surface area in the city.

It is known that earlier, Ha Noi People's Committee invited a company from the Federal Republic of Germany is specialized in manufacturing preparations applied in water treatment in Hanoi to research, manufacture treatment compositions for cleaning lake  in the capital. July, 2016, Redoxy-3C products are created for test. This will be the exclusive technology products of Hanoi People's Committee.