Stormwater treatment system closed

From the fact that many areas use rain water for daily life, two high school students in grades 11 An Lac Thon (Soc Trang) has devised tinkering study stormwater treatment system enclosed.

Two authors are Nguyen Ngoc Thao Quynh and Le Hoang Yen.

Quynh said: "In reality, many people store and use rainwater meals, daily activities. Do habits and lack of knowledge about clean water so they used direct dining rainwater, untreated.

Moreover, people in rural areas remains difficult, the source of drinking water has a very high price. "

From this fact, team building stormwater treatment system enclosed with these steps: Handle the smell and color of rainwater through the gravel and activated carbon; osmosis, filtration and reverse microbial treatment by ozone, or SODIS method using energy to handle microorganisms.

 

Thao Quynh (rightmost) and Hoang Yen edges model "stormwater treatment system enclosed".
 

To clean rain water, they use two filter systems. Profile rainwater is filtered by cloth to remove dust, impurities large size (packaging, leaves, ...) from the rainwater collection systems (roof, gutters, ...).

Then stored in a reservoir containing activated charcoal filter. Rain water from the reservoir through the activated carbon system will eliminate the smell and color. Water from the tank into the first filter system with adjustable valve at will.

In the first filtration system, rain water from the tank will go through the system into the gravel and activated carbon filters under gravity first.

Because the average contain cationic Resin particles absorb the anion (negative ion) with the rainwater and then passes through an anarchic second filter osmosis and gravity.

Rain water through the filter after the first will be absorbed into the filter anions second vice filtered through the anion and cation Resin particles (positive ions) in the rainwater is absorbed again. Then continue through the piping system to handle microorganisms.

Rainwater after deodorant, colored in a storage system, through the first filter and second, the system will handle microorganisms containing ozone aeration. In areas without electricity, the SODIS use measures to destroy microorganisms.

The results of the technical center of standardization, metrology and quality - Can Tho Department of Science and Technology shows that, after samples of rain water through the filtration system are standardized by the Ministry of Health drinking water.

Master Nguyen Ngoc Hai, the instructor commented: "The theme stormwater treatment system enclosed so they made very simple, easy to do, environmentally friendly, inexpensive (only about 1.6 million to buy more ozone aeration), high efficiency, can apply to the family areas, remote, mountainous or coastal areas ".

Mr Phan Van Hung, locals commented: "I've tried to drink rain water filtered through their filtering system and then, water is in, has a sweet taste very pleasant