In China, 82% of the people drink shallow wells and river water, 75% of whom are severely punished for water pollution, and 160 million people are polluted by organic substances. For a long time, people have always believed that tap water is safe and sanitary. However, because of water pollution, tap water is no longer sanitary.

According to a survey, there are 221 chemical pollutants detected in tap water worldwide, some of which are identified as carcinogens or carcinogens. From the drinking standard of tap water, our country is still at a low level. At present, tap water can only be simply processed into potable water by precipitation, filtration, chlorination and disinfection.

Chlorination of tap water can effectively kill bacteria, but also produce more halogenated hydrocarbons. The content of these chlorinated organic compounds is doubled, which is the biggest cause of human gastrointestinal cancer. At present, the components of urban pollution are very complex. Besides heavy metals, there are many harmful residues such as pesticides, fertilizers and detergents in the polluted water. Even if tap water is boiled, the above residues can not be removed. The concentration of harmful substances in boiled water is increased, and the dissolved oxygen beneficial to human health is reduced. The content also increases the carcinogens such as nitrite trichloromethane, so the safety factor of drinking water is not high. According to the latest information, at present only 23% of the residents in major cities in China meet the hygienic standards for drinking water, while the qualified rate of drinking water in small towns and rural areas is lower. It is imperative to ensure that drinking water is qualified for prevention and control of water pollution.www.khnwatertreatment.com