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What is the typical ratio of pure water produced to concentrated water discharged by industrial pure water systems that require a resistance of 2 megohms? I found online that for home use, the ratio is 1:3, with 1 part pure water and 3 parts concentrated water. Is that correct? What about industrial pure water equipment? What is the percentage?
May I ask that for industrial pure water equipment (requiring 2 MΩ of resistance), the ratio of pure water produced to concentrated water discharged is generally 1.5:1?
The recovery rate for normal pure water is around 75%-80%, and this depends greatly on the quality of the water
The water production rate is related to water quality. Additionally, investment and operating costs must be taken into consideration; if water prices are low, the water production rate can be set lower, with a normal level of over 75%
It depends on what type of system is used; if it’s an ultrafiltration or reverse osmosis system, it also matters how many stages there are. Generally, the recovery rate for the first stage is around 50%, while that for the second stage is between 70% and 75%, depending on the quality of the water.
Different situations lead to different outcomes. Specific analysis.
The overall recovery rate should be above 60%; the 1:3 ratio you mentioned represents excessive waste. 2 megohms can be achieved using reverse osmosis, which has a desalination rate of 99% and a recovery rate of 75%
It is claimed that the water production rate is 75%, but in reality this figure is not achieved; scaling and biofilms both cause a decrease in the water production rate. Increasing the water yield is the correct approach. In fact, there is no better way other than cleaning the membrane; striving for a high water yield can lead to clogging of the membrane. Fortunately, we have equipment from the United States that helps increase the water yield, proving that it is possible to achieve the desired levels of output