How to treat dirty water into clean water

While floods come and withdraw, lack of clean water is always a problem that people in these areas face. Experts will help the reader with the simplest methods of water treatment .

Fresh water, old clothes filter water

Prof. Duong Duc Tien, Center for Biotechnology for Life and Production, said that under the condition of treating dirty water into ordinary clean water, people use alum for sedimentation, then they will proceed with disinfection. with chlorine at a dose of 2mlg / l to kill bacteria. Wait for the chlorine to evaporate, about 1 - 2 hours or when the smell of chlorine is smelled, it can be used. Then boil for use as drinking water.

Chlorine preparations are available at all medical facilities, however, without chlorine storage, Javen bleach can be used instead. Many families have a habit of hoarding Javen bleach in the house to clean up, in this case, Javen water can be used to filter water instead of chlorin preparations.

If under flood conditions, there are no such materials that can be self-created by using clean clothes to filter. Put a cloth on a basket or a basket, catch the bucket of water below and pour water over it. Fill the bucket with water, wash the cloth and continue to filter for the 2nd and 3rd time. This way, it is possible to filter basic types of dirt in the water. If there is a condition to add a little lime to the clear water or to give chlorin to stir after 1 hour it is OK


Associate Professor Trinh Le Hung, Department of Chemistry, University of Science, VNU said that people can put alum into water to make clearer water, then use chlorine disinfectant in water. Chlorine in powder form, so when mixed in water, stir well. This water is used for washing and living, but if used as drinking water, it must be boiled. This is a water cleaning solution that can be applied in flood conditions, but it should not prolong the use of this water source because it is not beneficial to the skin or health.

In addition, it is possible to crush trees and spinach leaves and stir them in water. The viscous vat has the effect of pulling the sediment downward, using instead of alum or Javen water because it makes the water clearer.

Clean water after flood

According to Prof. Duong Duc Tien, water treatment after flooding also needs to be correct, after cleaning the tank, it is necessary to use sedimentation and filtration measures such as using sand and gravel to flow water before using to reduce the Dirty precipitate is present in water. For daily drinking water, use a little salt or lime to put into water to disinfect, ensure hygiene because the groundwater source is also affected, polluted by surface water flooded for a long time .

The treatment of wells and water tanks after flooding should pay attention. Associate Professor Trinh Le Hung advised him to drain all the dirty water in the well, break it up and smoke a few times to get clean groundwater. In addition, if there is mud, it is necessary to suck mud, clean the bottom of the tank, well .

Prof. Dr. Nguyet Xuan Thung, Department of Chemistry, University of Science, VNU, said that for drilled wells, water from drilled wells can be used. With the structure of bentonite mineral composition with class structure, it is able to adsorb cation or exchange occurs in the network and be retained in the material.

Therefore, it can filter most heavy metals, arsenic, alum and other impurities. Building a preliminary separating tank, the water filter will be made up of a layer of gravel, a filter grain and a layer of sand on top. You can make a bucket or a high bucket and pour each layer like this and let the water run through after the water in the tank has been pumped up and exposed to the air.