Uncovering the common misunderstanding of membrane water treatment equipment

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Membrane water treatment technology plays a vital role in modern water resources management, however, in the actual application process, there are some common misunderstandings, we need to understand deeply and correctly interpret.


First, a common misconception is that the membrane method can completely remove all contaminants. In fact, although membrane filtration technologies such as reverse osmosis and ultrafiltration are effective in removing particles, organic matter and microorganisms, they do not have the same removal capacity for all types of pollutants. For example, for some dissolved ions or very small virions, the membrane method may not be able to achieve 100% retention, and it is often necessary to cooperate with other pretreatment or post-treatment means to achieve the desired purification effect.

Secondly, many people believe that "membrane components can run efficiently for a long time without maintenance once installed". In fact, the membrane material will be blocked by pollutants during the filtration process, resulting in a decrease in flux and a decrease in separation efficiency. In order to ensure its stable performance, the membrane components must be regularly chemically cleaned, physically rinsed or even replaced to maintain normal working conditions. Ignoring this link will directly affect the overall efficiency and service life of water treatment equipment.

Thirdly, "the water quality after membrane treatment is pure water" is also a common misunderstanding. Although the membrane process can effectively separate most impurities from water, when treating raw water with complex water sources, relying on a single membrane treatment step may not be able to meet stringent drinking water standards. It is usually necessary to combine activated carbon adsorption, ultraviolet disinfection and other processes to further remove the remaining trace pollutants and ensure the quality of the final effluent.

Finally, the view that "membrane water treatment is costly" is also questionable. The initial investment is indeed relatively high, but with the development of membrane material science and system design optimization, the operating costs of membrane water treatment are gradually decreasing. Especially compared with traditional treatment methods, membrane treatment has obvious advantages in improving resource utilization, reducing secondary pollution and strong adaptability, and attaches equal importance to economic and social benefits in the long run. Therefore, when choosing a water treatment program, enterprises should comprehensively evaluate the actual cost input and output benefits of membrane treatment technology to avoid missing the opportunity to improve the level of water treatment due to one-sided understanding.

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