Chlorination is the process of adding chlorine to drinking water to disinfect it and kill germs. Different processes can be used to achieve safe levels of chlorine in drinking water. Chlorine is available as compressed elemental gas, sodium hypochlorite solution (NaOCl) or solid calcium hypochlorite (Ca(OCl)2 .
For chlorine to be effective against microorganisms, it must be present in a sufficient quantity, and it must have a sufficient amount of time to react. This reaction time is called the contact time. For most water systems, the best contact time is usually 30 minutes.
Disinfectants Chlorine. Is is fairly persistent and relatively cheap. Chlorine has been used for applications, such as the deactivation of pathogens in drinking water, swimming pool water and wastewater, for the disinfection of household areas and for textile bleaching, for more than two hundred years.
The chlorine solution you pour into the water breaks down into many different chemicals, including hypochlorous acid (HOCl) and hypochlorite ion (OCl – ). Both kill microorganisms and bacteria by attacking the lipids in the cell walls and destroying the enzymes and structures inside the cell,
Chlorine does not really make water clean, but a suitable concentration of chlorine (or chlorine compounds) can kill or inactivate disease-causing microorganisms in the water. However, chlorination will not kill many parasites, and if the raw water contains a lot of dissolved organic substances
Water used for drinking and cooking should be free of pathogenic (disease causing) microorganisms that cause such illnesses as typhoid fever, dysentery, cholera, and gastroenteritis. Complete mixing of chlorine and water is necessary, and often a holding tank is needed to achieve appropriate contact time.
Remove Chlorine by Filtration. Chlorine can be removed by running the water through a filter with activated charcoal, in granular or particle form. The carbon works by adsorption, the molecular bonding of the chlorine ions to the surface of the charcoal. According to the Minnesota Department of Health, it’s important to size the filter(s)
Emergency Disinfection of Drinking Water. Locate a fresh liquid chlorine bleach or liquid chlorine bleach that is stored at room temperatures for less than one year. Use the table below as a guide to decide the amount of bleach you should add to the water, for example, 8 drops of 6% bleach, or 6 drops of 8.25% bleach, to each gallon of water.
Water chlorination is the process of adding chlorine (Cl. 2) or hypochlorite to water. This method is used to kill certain bacteria and other microbes in tap water as chlorine is highly toxic. In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, and typhoid.
Bleach – Water Ratio For Drinking Water Purification. Bleach – Water Ratio For Drinking Water Purification. 09/16/2018 Ken Jorgustin 6 Comments. If the water is very dirty, yes, pre-filtering through cotton or other means will enable more efficient chlorine purification of organics that remain. Also, avoid scooping water near the bottom
Purifying by adding liquid chlorine bleach. Treat water by adding liquid household bleach, such as Clorox or Purex. Household bleach is typically between 5.25 percent and 8.25 percent chlorine. Read the label. Avoid using bleaches that contain perfumes, dyes and other additives. Be sure to read the label.