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The water treatment concept of May 22, 2018

 water treatment includes physical and chemical treatment.

The ways in which human water treatment have been years of history, physical methods including the use of a variety of different aperture size, the filter material using adsorption or blocking way, exclude the impurities in the water, the adsorption mode of less important for adsorption on activated carbon, blocking method is through the water, the filter material for large impurity cannot pass, and get more clean water.

In addition, the physical method also includes precipitation method, which means that the impurities with a smaller proportion are floating on the surface of the water, or the impurities with larger proportion are deposited in the lower part, and thus obtained.

Chemical method is to use various chemicals to the water impurities into smaller material harm to the human body, or the impurity concentration, the oldest of the chemical treatment method should be use alum in the water, the water impurities after collection, volume change, used to filter method, remove the impurities.

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Water treatment refers to the physical and chemical measures taken to achieve certain standards of water quality.

The minimum standards for drinking water are set by the environmental protection department.

Industrial water has its own requirements.

The physical properties of water temperature, color, transparency, smell and taste are the basic criteria for judging water quality.

The chemical properties of water, such as its acidity and alkalinity, the concentration of dissolved solids and oxygen content, are also important criteria for judging water quality.

Such as some grassland natural water soluble solids concentration is as high as 1000 mg/l, and Canada regulation of total soluble solids concentration in drinking water must not exceed 500 mg/l, many industrial water also requires concentration shall not be higher than 200 mg/l.

This kind of water, even if its physical properties meet the requirements, can not be used casually.

In addition, radioactive elements from nature, nuclear accidents and nuclear power plants are also important features to be monitored.

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