To fight the outbreak of coronavirus, Sylhet City Corporation (SCC) started a special drive to keep the city disinfected by spraying and spreading bleaching powder mixed liquid.
The drive started on Saturday evening and has continued every day and night since, to cover all areas as soon as possible.
Dr Md Jahidul Islam, chief health officer of SCC, said, "We are using calcium hypochlorite, which is commonly called bleaching powder, with a ratio of 10gm in per litre of water."
"At bazaars of the city, we are spreading a thick liquid that contains more bleaching powder and also spreading powder directly," he said.
He said, "In shopping malls, we are spraying the liquid with handheld sprayer and finally for roads, footpaths and roadside walls we are using our spraying vehicles for the cleaning liquid."
Starting the drive at Sylhet railway station and bus terminal area at Kadamtali on Saturday morning, the corporation sprayed disinfectant at all bazaars and several shopping malls.
Major roads of Chowhatta, Kumarpara, Nayasarak, Kazitula, Barutkhana, Naiorpul and Zindabazar areas were already covered on Sunday, the SCC official said.
In daytime, we are not being able to spray disinfectant in roads and footpaths, so we're conducting the drive after 11pm in the night, Dr Jahidul said.
Contacted, Prof Dr Ashraful Alam, head of the department of chemistry at Shahjalal University of Science and Technology in Sylhet, said, "Bleaching powder is the most convenient and effective method of disinfecting. The corporation is doing a very good job."
"The liquid can also be stored at all public places for people to use, and the cost of making the liquid is very affordable for all," he said.
SCC Chief Health Officer Dr Jahidul said, "We are already planning to set several wash blocks in different parts of the city and we will consider the suggestion of keeping liquid disinfectant in the wash blocks."
"Until the virus outbreak passes, the drive will continue by rotation and we also need help from the citizens to raise awareness," he said.