Academic point Spray of water in building Baiyoke Resolving toxic dust problems is not recommended 4 Methods of crisis relief.
Case Gen. Prayut Chan-ocha, Prime Minister and Head of the National Peacekeeping Council (NCPO) Prepared to solve the dust crisis in the Bangkok area and 5 provinces around Bangkok, spraying water from tall buildings such as the Baiyoke Building.
For the subject Mr. Sonthikachawat, Environment and Health Specialist Club of Thai Environmental Academics He commented that The government will reduce dust 2.5 by installing water sprays in tall buildings such as Baiyoke Building, etc., which is the concept of management.
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I studied in foreign countries also in China or in Europe. But do not spray or spray water from the building Like a light rain That will not help catch small dust suspended in the air at all
1. The correct method is It must be installed on the roof of the building up to 100 meters high, called the sprinkler system of skyscrapers. The spray of 0.1-3 microns (close to 2.5 dust) is sprayed into the surrounding atmosphere in a radius as at least 50 meters may be able to capture such dust on the ground. But it must be done at the same time for several buildings at a height not exceeding 100 meters, made on the day that the PM 2.5 is larger than the standard and the bad day
2. Spray water spraying should be done continuously for at least 30 minutes. And spaced 30 minutes – 1 hour, then spraying can reduce dust by up to 70% in the area
3. In foreign countries, buildings near the source of water or clean river can be sucked and sprayed into small fumes, which will save Use less energy And more effective than expected
4. It is a method that will help to ease the concentration of small droplets, but the best way is to go to the x-ray area and deal with the source to be as good and accurate as possible.
Picture from Sonthi Kotchawat