Do you still need to take a bottle of water to school today? The answer is no, in recent years, with the improvement of teaching conditions, the school has basically solved the problem of students' drinking water, and all students in school can drink safe and hygienic drinking water. So today we will talk about school drinking water.
At present, the unified water supply mode of schools mainly provides direct drinking water or bottled water. Bottled water must be familiar to everyone. Like bottled water in China, it can be drunk directly after being heated and boiled in a water dispenser. Barreled water is generally pure water, which is made from tap water after deep purification. It removes impurities such as organic pollutants, inorganic salts and additives and harmful factors such as bacteria, and is safe and hygienic. However, minerals and trace elements beneficial to human body are removed from the purified water, which is not suitable for developing students to drink for a long time. In addition, there are certain safety risks in the production, transportation and water exchange of bottled water. Therefore, in recent years, more and more schools have begun to use equipment that can provide direct drinking water for daily water supply.
What is direct drinking water?
Direct drinking water, also known as healthy living water, refers to water that is pollution-free, non-degradable, meets human physiological needs (contains beneficial mineral elements similar to human body), and has a weakly alkaline pH value and can be directly drunk.
After the tap water is treated by direct drinking water equipment, it can filter out different colors, smells, residual chlorine, ozone, hydrogen sulfide and heavy metals in the water, kill bacteria and viruses, and energize and mineralize the water body, which fully meets the standard of direct drinking water for healthy water published by the World Health Organization. The direct drinking water system solves the problem of continuous drinking water supply in schools, and students can drink safe and hygienic water at any time in schools.
How does the school ensure students' safe drinking water?
Although barreled purified water and direct drinking water provide convenient and safe drinking water for students, their water quality is still affected by raw water quality, water treatment technology, water treatment filter material quality, equipment management and maintenance, daily use and other factors.
In view of the above factors, it is suggested that schools should pay attention to the following points when managing and maintaining bottled water: the water dispenser must be placed in a cool and dark place, and never in a direct sunlight place to avoid breeding green algae. Students are required to finish bottled water in autumn and winter within 2-4 weeks, and it is best to finish it in 7- 10 days in spring and summer. Drinking fountains should be disinfected regularly to avoid secondary pollution.
The school should pay attention to the following points in the management of direct drinking water equipment: drain the "dead water" in the water dispenser in time every Monday morning to ensure the quality of fresh water. Regularly send water samples for inspection to understand the water quality. Once pollution occurs, it can be found in time. Replace qualified filter elements in time to prevent secondary pollution.