Process for producing bottled water sterilized by ozone and sterilized bottled water

Abstract

The invention relates to a process for producing bottled water sterilized by ozone, which comprises the following continuous steps: gathering original water in an original water tank (1), and pumping the water from the original water tank (1) to a buffer tank (2); injecting ozone before the water is pumped to the buffer tank (2); bottling the ozonized water through a filling machine after the water is pumped to the buffer tank (2). The process is characterized in that the water flow is maintained at a constant value between the original water tank (1) and the buffer tank (2), and the ozone which has stable concentration and can be transiently used is injected in the water.

Description

technical field [0001] The invention relates to a bottled water production process using an ozone disinfection process. Background technique [0002] Ozone (O 3 ) is a very widely used disinfectant in the bottled water industry because of its strong bactericidal effect. This superior disinfectant inactivates more resistant pathogenic microorganisms such as protozoa (e.g. Cryptosporidium parvum) and viruses by disrupting cell membranes. By dissolving ozone into the water before filling, it is possible for the ozone to sanitize the water itself as well as the bottle and cap when it is filled. The ozone decomposes very slowly in the bottle, providing sufficient contact time for the disinfection of the bottle and cap, and after a few hours, the ozone is completely decomposed, leaving only odorless, tasteless and harmless oxygen in the bottle. Such products are microbiologically safe for consumers. [0003] However, generally among all oxidants used for water disinfection, oz...

AI Technical Summary

Problems solved by technology

All of these methods have a major disadvantage: if you ozonize bottled water, bromates form mainly in the bottle, and obviously it is impossible to remove them once they form

[0022] The third disadvantage is the filtration process, which will cause the ozone to decompose, and the ozonated water may be recontaminated, because of the easy growth of bacterial flora on such filters, especially on activated carbon filters

[0023] A fourth disadvantage is the formation of bromate even when the pH is kept below 6 or 6.5 when the ozone concentration and contact time are not strictly controlled

In particular, the method does not take into account the criteria of packaging materials, as illustrated in the examples below

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