Watermelon Affair
2. Watersheds should be drained and ventilated as soon as possible. When the topsoil of the surface is wet, it will be re-dumped and disinfected, and the next crop will be planted as soon as possible.
Distilled water machine refers to a machine that uses distillation to prepare pure water. Distilled water can be divided into once and multiple times. After the water is distilled once, the non-volatile components are removed in the container, and the volatile components enter the initial fraction of distilled water. Usually, only the middle part of the fraction is collected, accounting for about 60%. To get more pure water, add alkaline potassium permanganate solution to distilled water to remove organic matter and carbon dioxide; add non-volatile acid to make ammonia become non-volatile ammonium salt. Because glass contains a small amount of water-soluble components, it is necessary to use a quartz distillation vessel to obtain very pure water when performing two or more distillations. The obtained pure water should be stored in a quartz or silver container.
working principle
The working principle of the distilled water machine: the production is to boil the source water to evaporate and condense and recover, which consumes a lot of heat energy and the cost is not too low. The other evaporating substances in the source water used to make distilled water will also follow the distilled water. It is formed and condensed into distilled water, such as phenols and benzene compounds that are harmful to health, and even evaporable mercury. To obtain pure water or ultra-pure water, it must be distilled twice or three times and other purification methods must be added.
Water distiller, distilled water machine, water distillation device
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