Chlorine Dose For Water Treatment

To calculate millilitres of 12 5 sodium hypochlorite liquid required to disinfect the water in a tank.

Chlorine dose for water treatment.

Learn how to calculate chlorine dose in this video using the our five step process to solving math problems. The three most common chlorine containing substances used in water treatment are chlorine gas sodium hypochlorite and calcium hypochlorite. Over a seven day period a system produced 40 000 gallons of water. Cl2 dosage mg l 9 525 x gallons of naocl solution injected x naocl w v gallons of water produced dosage example 1.

1 2 mg x 4 ppm x 8 34 lb gal 32 gal 15 x 8 34 lb gal chlorination box 2 example. The choice of the chlorine type to be used often depends on cost on the available storage options and on the ph conditions required. If 500 000 gallons was treated with a 5 25 chlorine solution weighing 9 lbs gal and. Other methods of disinfection such as ultraviolet and ozonation are effective disinfectants but they do not provide a residual to prevent pathogen regrowth as chlorination does.

As a major disinfectant in 1908 in jersey city new jersey 3 chlorine use became more and more common in the following decades and by 1995 about 64 of all community water systems in the united states used chlorine to disinfect their water 3. How many gallons of chlorine will this take. Chlorine readily combines with chemicals dissolved in water microorganisms small animals plant material tastes odors and colors. In pure water cleared of other microorganisms the infective form of n.

Chlorine was first used in the u s. As a disinfectant it has drawbacks but it also has advantages. These components use up chlorine and comprise the chlorine demand of the treatment system. Chlorination affects ph and ph affects results a fact that is.

Fowleri dies after a 5 minute exposure to a chlorine concentration of 0 5 mg l roughly the recommended level for water systems. It is important to add sufficient chlorine to the water to meet the chlorine demand and provide. Amount of water in tank l concentration of chlorine required 1 mg l 2 mg l 5 mg l add ml add ml add ml 1000 8 16 40 2000 16 32 80 5000 40 80 200 6000 48 96 240 7500 60 120 300. The most common use of chlorine dosing in water treatment is to disinfect water.

Page 26 nsw health nsw private water supply guidelines 2. Discover activ ox feedwater s patented instant chlorine dioxide dosing system that offers simple safe efficient and highly adaptable disinfection solutions.