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Membrane Cleaning
- May 10, 2018 -

Membrane cleaning

After the long-term operation of the reverse osmosis device, various pollutants will gradually accumulate on the surface of the membrane. For example, inorganic substances such as scales and metal oxides, which are deposited on the surface of the membrane, can cause degradation of the performance of the reverse osmosis device. In order to restore the performance of the membrane, the membrane needs to be chemically cleaned and sterilized on a regular basis. Chemical cleaning should be based on the membrane material and the type of pollutants to choose the appropriate cleaning agent. The regular backwash minimizes fouling of the membrane and ensures membrane flux to extend membrane life, improve effluent quality, and increase water production. The above-mentioned attention points are problems that must be paid attention to when using electroplating wastewater treatment by reverse osmosis technology to avoid unnecessary losses.

Membrane separation technology is applied to the treatment of electroplating wastewater, which is superior to traditional treatment technology. Especially when the electroplating nickel rinsing water is concentrated, both the concentrate and the permeate can be reused. Not only can nickel sulfate in wastewater be recovered, but also pollutant emissions can be reduced and even zero emissions can be achieved. Reducing environmental pollution and improving the ecological environment are both in line with the principles of clean production and in line with the national sustainable development strategy. Membrane technology will make a significant contribution to China's environmental protection cause. In the future, with the continuous improvement of preparation technology, the process of reverse osmosis treatment of heavy metal wastewater will be more effective and more economical, and has a wide range of application prospects.