Iran News ...


07/19/12

Concerns about quality of water in Tehran

Source: Mehr News Agency, Tehran

Tehran City Council Chairman Mehdi Chamran said on Tuesday that officials in charge of Tehran water and sewage system have reported the replacement of chlorine water by bleach water in Tehran.


Karaj Lake in north Tehran
According to wikipedia page Water supply and sanitation in Iran Greater Tehran with its population of more than 13 million is supplied by surface water from the Lar dam on the Lar River in the Northeast of the city, the Latyan dam on the Jajrud River in the North, the Karaj River in the Northwest, as well as by groundwater in the vicinity of the city.

Chlorination is the process of adding the element chlorine to water as a method of water purification to make it fit for human consumption as drinking water.

In an interview with the Mehr News Agency, Chamran said, "Officials have said consumption of bleach water is better than chlorine water and the city council has requested a complete report on the water quality in the first 6 months of the year after the implementation of the plan."

He went on to say that usually the quality of water in Tehran is not good when water reserves in dams are reduced and as a result the underground water should be used "but that is not the case right now and the dams are full of water."

"There have been times in Tehran when the level of water reservoirs has gone down so much that 48 percent of consumable water came from the wells," the councilor stated.

With regard to the quality of water in southern and northern Tehran, he said, "With the completion of the Mamlo Dam, the quality of water in south Tehran will improve and there will be no problem regarding the quality of water in various parts of the city."

Mamlo Dam, near Tehran, will provide drinking water for the capital city as well as irrigation of the farms.

Water bleach is a system of water purification which can be used in times of emergency. According to Washington State Department of Health, the following are ways of purifying water.

There are two primary ways to treat water: boiling and adding bleach. If tap water is unsafe because of water contamination (from floods, streams or lakes), boiling is the best method.

  • Cloudy water should be filtered before boiling or adding bleach.
  • Filter water using coffee filters, paper towels, cheese cloth or a cotton plug in a funnel.

Boiling

  • Boiling is the safest way to purify water.
  • Bring the water to a rolling boil for one minute.
  • Let the water cool before drinking.

Purifying by adding liquid chlorine bleach

  • If boiling is not possible, treat water by adding liquid household bleach, such as Clorox or Purex. Household bleach is typically between 5 percent and 6 percent chlorine. Avoid using bleaches that contain perfumes, dyes and other additives. Be sure to read the label.
  • Place the water (filtered, if necessary) in a clean container.
  • Mix thoroughly and allow to stand for at least 30 minutes before using (60 minutes if the water is cloudy or very cold).

... Payvand News - 07/19/12 ... --



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