Knowledge and initiatives on drinking water safety

Water is the source of life and the foundation of health, human beings are inseparable from water in life and production activities, the quality of drinking water is related to our health, the following are some drinking water safety tips in daily life, let's take a look!

What is safe drinking water?

Safe drinking water refers to drinking water that a person consumes for life and does not pose a significant health hazard. According to the definition of the World Health Organization, the so-called lifelong drinking is based on the average life expectancy of 70 years, calculated by 2 liters of drinking water per person per day. Safe drinking water should also include water for daily personal hygiene, including bathing water, gargle water, etc. If the water contains harmful substances, these substances may enter the human body through skin contact, breathing and absorption during bathing and gargling, thus affecting human health.

Where does drinking water come from?

Domestic drinking water mainly comes from surface water and groundwater.

Surface water is a body of water formed after surface runoff and collection of precipitation, including river water, lake water, reservoir water, etc. It is characterized by soft water quality, less salt content, and the quantity and quality of water are greatly affected by the geological environment and human activities in the area through which it flows.

Groundwater is formed by the infiltration of precipitation and surface water into the ground through the soil strata. In the process of surface water infiltration, on the one hand, some pollutants will be filtered and adsorbed, so that the pollutant content will be reduced; On the other hand, some minerals will also be precipitated, which will increase the salinity of groundwater. Therefore, in general, the groundwater quality is good, but the salinity is high, and it is mostly hard water.

In daily life, it is necessary to prevent groundwater from being polluted, because once it is polluted, even if the cause of pollution is identified and the source of pollution is eliminated, it takes a long time to eliminate pollution due to its poor self-purification ability.

Why should drinking water be processed?

Due to natural and man-made factors, raw water contains a variety of impurities, and there is a possibility of contamination by various microorganisms such as bacteria, viruses and parasite eggs. The purpose of water purification treatment in the water plant is to remove these suspended substances, colloidal substances, bacteria and other toxic and harmful components that will bring harm to health, so that the purified water (commonly known as tap water) can meet the needs of drinking water. Therefore, the process treatment of drinking water is very necessary!

The conventional treatment of drinking water mainly includes coagulation, sedimentation, filtration, disinfection and other processes. Through the production process of tap water, all kinds of suspended particles and colloidal substances in the water have been separated in the coagulation process, and the pathogenic microorganisms in the raw water have also been eliminated in the disinfection process. Therefore, the processed tap water no longer contains the toxic and harmful substances in the raw water.

Implement the "six guarantees" initiative to protect the safety of drinking water

Focus on the heavy protection of elements, multi-source joint insurance, urban-rural co-insurance, three-dimensional joint insurance, river basin co-insurance, and mechanism compulsory protection, so as to effectively ensure the safety of drinking water sources in the city.