Alkaline potassium permanganate can be used to sterilize water antifungal. Bacteria, as well as algae and bleaches, but must keep at least 30 minutes, then bring the water to continue to use (non-water) In case of urgent need during a flood and there is no clean water use. In addition, there are many Ruby concentrations approximately 1-4% can also be used to get rid of iron and magnesium, adulterated in water and can also get rid of the smell, the smell of soil water lake.
การแปล กรุณารอสักครู่..