According to reports, Yang Shengqing, a student of Tongji University's School of Economics and Management, invented a new type of double-layer drinking bucket, which is both environmentally friendly and enables the drinking water to be “preserved†for a long time. This work has already applied for national invention patents and utility model patents.
At present, widely used drinking water barrels have negative pressure in the barrel during the water discharge process. Air enters the bottom of the barrel from the mouth of the barrel. Dust, bacteria, microorganisms, and other harmful substances in the air are easily filtered in drinking water. Rapid breeding, pollution of water quality. Yang Shengqing's invention is to add a plastic film core in the drinking water tank. The water is contained in the inner core, and the air flows between the inner core and the barrel without sinking on the surface of drinking water.
Double-layer drinking buckets also have the advantage of being environmentally friendly. Usually the cost of a drinking bucket is 30 yuan, and the life span is only two or three years. About 80 million drinking water buckets are eliminated each year in the country. In addition, drinking bins must be strictly cleaned and disinfected after each use to recycle, wasting time and water resources.
Source of information: pack.cn