Clean hemodialysis water treatment equipment properly!

After the pure water treatment equipment has been running normally for a period of time, the reverse osmosis membrane element of the industrial pure water equipment will be contaminated by suspended matter or insoluble matter that may exist in the water supply, mainly including calcium carbonate scale, calcium sulfate scale, metal oxide scale, and silicon. Sediments and organic or biological sediments. Therefore, the redesigned water treatment system always needs to be cleaned, and the reverse osmosis system needs to be cleaned when the RO system has a tendency to contaminate, when it is put into use before and after long-term shutdown, or when routine maintenance is performed as planned. The system needs to be cleaned reasonably and timely, which is a necessary condition to ensure the stable operation of the system.

When the following pollution characteristics appear:

1. After standardization, the water production volume decreases by 10 to 15%;
2. After standardization, the quality of produced water drops by 10 to 15%;
3. And the pressure drop between feed water and concentrated water increases by 10-15%. At this time, the reverse osmosis system needs to be cleaned.

The frequency of RO system cleaning due to fouling varies from location to location. Generally speaking, an acceptable cleaning frequency is every 3 to 12 months. If cleaning is required once a month, the RO pretreatment system needs to be improved and the RO system operating parameters adjusted. If cleaning is required from January to March every year, the operating level of the existing equipment needs to be improved.

Reverse osmosis membrane elements and water supply pipelines are the main objects for cleaning of hemodialysis water treatment equipment; cleaning methods mainly include chemical cleaning and thermal disinfection.