The concept of "drinking tap water for decades without any problems! There is no need to install a water purifier, it costs a lot of money!" is no longer applicable. With the development of industrial technology, driving the economy, it also causes considerable pressure on the environment. The environment and water are no longer the same as they were a decade ago. Water is the source of life and an essential part of maintaining the metabolism of life. "Purifying water" has become an increasingly important topic in modern families.
Firstly, let's learn about the procedures required for tap water to arrive at home.
Tap water is usually taken from the nearest Rivers and Lakes, and meets the Class III water and above standards in the Environmental Quality Standards for Surface Water.
The first process is reaction, in which various chemical reagents are added to the reaction tank (to coagulate particles into large ones, kill algae, and balance acid-base); The second process of sedimentation involves settling particulate matter and colloidal pollutants from the water source at the bottom of the sedimentation tank;
The third process is filtration, where fine impurities in the filter tank are filtered and adsorbed;
The fourth process of disinfection involves adding chlorine dioxide to the clean water tank to disinfect the bacteria in the water;
The fifth process is pressurized water supply, and the treated tap water is pressurized and delivered to thousands of households through the water supply pipeline.
After treatment, tap water is required to comply with the Water Quality Standards for Drinking Water, so tap water is safe. But why are few people drinking tap water directly? This is because tap water may be contaminated during transportation.
The usual sources of pollution include the following:
1. Pipeline pollution: In the early days, galvanized iron pipes were mostly used for water supply. Over time, it is inevitable that rust will occur and secondary pollution will occur, such as heavy metals and bacteria;
2. Secondary water supply pollution in high-rise buildings. Due to insufficient pipeline water supply pressure, many high-rise buildings in certain areas use reservoirs and water tanks for water supply. These water storage devices are used for a long time, and rainwater, foreign objects, scale, insects, and rust can all pollute the water source;
3. Water source: In some areas, the water quality is poor and the hardness of the water is high. The main reason is the enrichment of calcium and magnesium ions in the water, which forms scale and affects the taste;
4. Disinfectants: Chlorine dioxide is added to tap water during disinfection, and there may be residues. Tap water has an unpleasant odor, which is usually related to this.
Frequent consumption of contaminated tap water can have an impact on physical health:
1. Heavy metals may cause gastrointestinal diseases, such as gastric ulcers, gastric perforation, and conjunctivitis;
2. Water with high levels of scale and carbonate content can easily cause stone related diseases;
3. Boiling tap water can kill most bacteria, but residual bacteria and bacterial corpses may cause infection;
4. Chlorine causes damage to the eyes and respiratory system of humans.
Is it okay to cook with tap water in the kitchen?
Tap water that is not contaminated with heavy metals can be directly used for cooking and soup making. High temperature can decompose residual chlorine in water, which is not harmful to human health; Bacteria and viruses are killed. High level secondary water supply should observe the water quality, whether the color and taste of the water have changed, and whether there are many impurities in the water before deciding whether it can be used. In general, heavy metal pollution of water sources is not allowed to be utilized, but pipeline pollution and its secondary pollution cannot be guaranteed.
Boiling water can solve the problems of residual chlorine and water hardness, but it still cannot eliminate all pollution. Since the problem cannot be solved from the root of the overall environment, efforts can only be made at the end of the water supply. One type is bottled water, but bottled water is only for drinking, which ordinary households can afford. If kitchen water is also guaranteed, the cost will greatly increase. Another way is to install a water purifier at home, starting from the source of the incoming water.
What is a water purifier:
A water purifier (also known as a water purifier or water quality purifier) refers to the deep filtration of tap water to purify rust, sand, colloids, and adsorb residual chlorine, odor, discoloration, pesticides, and other chemical agents in the water. It can effectively remove impurities such as bacteria, pathogens, toxins, and heavy metals from water, effectively improving drinking water health.
The necessity of installing a water purifier
Let's not talk about water pollution for now, let's just talk about tap water. The daily drinking tap water has undergone various cleaning, sterilization and disinfection methods. After factory water quality testing, it can meet national health standards. After passing through long pipelines and secondary pressurized water tanks, it flows into thousands of households. We cannot guarantee whether the water supply pipes will have scale or rust, nor can we guarantee whether there are bacteria, insect corpses, moss and other microorganisms in the water tanks of residential areas where secondary water supply is provided in high-rise buildings. All kinds of pollution are alarming;
Some people say that my family lives in rural areas, and my water is groundwater, which is directly pumped up. Such water often contains a large amount of bacteria, plankton, solid impurities, toxic and harmful impurities, etc;
Water purifiers can better ensure the safety of drinking water in our daily lives, so it is necessary to install water purifiers at home!
