HOME > Blog >

Explanation and analysis of reverse osmosis element membrane recovery rate

Author:Huamo Water treatment materials FROM:Water filter membrane manufacturer TIME:2021-12-15

As we all know, when reverse osmosis element membrane is used to treat raw water, the recovery rate is the main performance parameter, which generally receives great attention. The high recovery rate indicates that the water output capacity is strong.

reverse osmosis element membrane

1. What is the recovery rate of reverse osmosis element membrane?

The recovery rate refers to the percentage of water permeated in reverse osmosis element membrane that is converted into product water or liquid, which depends on the pretreatment of the water inlet and the water consumption regulations.

2. Is the recovery rate of reverse osmosis element membrane the higher the better?

The higher the recovery rate of the system, the lower the consumption of concentrated water, but too high recovery rate may lead to a decrease in the production water body. Increasing the system recovery rate will increase the content difference on both sides of the reverse osmosis membrane, leading to an increase in the salt content of the product water; increasing the recovery rate will also result in a decrease in the net driving pressure of the system, which will eventually lead to a decrease in the system water production. In order to maintain the same water production, the operating pressure of the system needs to be increased, and the operating cost of the system needs to be increased. Therefore, the recovery rate should be set according to the RO reverse osmosis system, not the higher the better.

ro membrane details

3. The upper limit of the recovery rate of reverse osmosis element membrane

The recovery rate is not a characteristic of filter ro membrane, but a result of a trade-off between the design mass production water body standard and the size of the concentrated water flow. The limitation of the recovery rate is determined by the development trend of the original scale and the development trend of the membrane surface groove effect. Therefore, before setting the recovery rate of the system, it must be determined whether the insoluble salt will scale on the surface of ro membrane details. When the ion product of the insoluble salt in the aqueous solution exceeds its solubility product constant, the precipitation may be precipitated from the solvent. The corresponding recovery rate of the larger concentration of concentrated water that does not produce precipitation is the limit of the system recovery rate.

The above is the explanation and analysis of the recovery rate of filter ro membrane. If you have any questions during use, you can contact customer service for consultation.

About Us




Manufacturer Address:No.6 Hengtong Rd, Shanmei Village, Xiamei Town, Nanan City, Fujian Province, China
Sales Tel:+86 15860050575