Coronavirus Covid-19 Water and Wastewater Infection
Coronavirus Covid-19 pandemic has held the whole world, every one is in fear. Fear is important because it is the only method for protection. The vaccines are not available so be in fear and stay healthy. Lots of misconceptions about Coronavirus covid-19 as it is a novel virus. Peoples want to know about its life span, infection ability & survival on different surfaces & materials so that they can protect themselves and their families from this deadly virus. This article Coronavirus Covid-19 Water and Wastewater Infection is small effort to deliver some information about the infection of Covid-19 Virus in water and wastewater.
Coronavirus Covid-19 virus can infect the drinkable water?
The World Health Organization, stated, there is no any evidence has been found that covid-19 virus can infect the water. The Covid-19 can spread out through the contact & touch with infected person or from infected surface. WHO has given this statement with the reference of world wide research.
It’s a good news, our water is safe. Another thing which is good for us that the disinfection of supply water is being done by the water supplying agencies in maximum countries, it is a usual practice. Sodium hypo chloride and ultraviolet treatment is the most reliable and widely used technologies for the disinfection. The World Health Organization has stated that the covid-19 is to be likely more sensitive to chlorination and other oxidation disinfection process in comparison to other viruses. But the desirable level of residual chlorine should be maintained throughout the water supply. The locations where the water supply is not available and communities are using ground water, a variety of house hold treatment technologies are available like pressurized filtration, reverse osmosis followed by ultra violet radiation etc. The appropriate quantity of free chlorine doses and boil of water are also very reliable techniques for the disinfection of water.
Though the persistence of the covid-19 is possible in water but till now no any evidence has been found that covid-19 is present in surface and ground water. There is no evidence that it spreads through contaminated water and wastewater. The risk of infection is also very low as stated by World Health Organization on the basis of world wide research.
Coronavirus Covid-19 can Infect the Wastewater?
Researchers have been detected the covid-19 virus in the faeces of patients but the quantity of virus, its life span and its infection strength are not known. So there is a possibility of covid-19 infection in wastewater. The life span of covid-19 in wastewater is also not clear it may survive as other microorganisms do and may not. Till now no cases has been detected that covid-19 transmitted through wastewater.
The domestic wastewater generated either get treated in sewage treatment plant or dumped into river through drains. The sewage treatment plants are designed for the treatment of domestic wastewater having huge retention time along with different treatment units. The main treatment unit is aeration tank in which microbial colonies (Activated Sludge) are found. These microbes digest the organic pollutant and reduce the pollution load up to desirable level.
The disinfection of treated wastewater is done by chlorine based chemicals or ultraviolet radiation in most of the sewage treatment plants. I have stated above that chlorine and ultra violet radiation are able to neutralize coronavirus covid-19, so there is very less probability for covid-19 from treated waste water. The biological activities and huge retention time of sewage treatment plant may kill this deadly virus also.
Even though there is less probability to get infect through sewage water but remember that we don’t have enough knowledge about it, so precaution is better. The manpower especially operators, chemists, supervisors and engineers has to take all preventive measures to avoid the infection. Personal protective equipment’s and personal hygiene is very essential.
At the end I want to mention that the recent research has shown less risk of infection from water and waste water, but we don’t have appropriate knowledge about the life span and survivability of this virus in water and wastewater, so It would be foolish to conclude that it doesn’t infect the water and wastewater.
“It is important to mention that viruses are able to mutate with new characteristics, this phenomenon may increase or decrease the risk of infection and its life span “.
Be safe & isolated.