1. The entire process of maintenance and disinfection of RO reverse osmosis equipment is unreasonable, which can lead to microbial environmental pollution. It is a widely existing deficiency in the application of composite polyamide films. Due to the poor resistance of polyamide films to permanganate index and the lack of proper use of disinfectants such as tap water disinfection in applications, coupled with insufficient attention from customers to microbial prevention, it is very easy to cause environmental pollution caused by microorganisms.

2. At present, many manufacturers produce purified water with microorganisms exceeding the standard, which is caused by inadequate disinfection and maintenance. Specifically manifested as:

a. At the time of leaving the factory, RO equipment was not maintained with disinfectant;

b. Failure to disinfect all pipelines and pre-treatment equipment after equipment installation;

c. Interrupt operation without adopting disinfection and maintenance measures;

d. Failure to disinfect preparation and reverse osmosis equipment on time;

e. The maintenance fluid is ineffective or the concentration value is insufficient.

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