Misunderstandings and Explanations about RO membrane system

Misunderstanding 1: RO membrane system is a difficult operating system

In fact, the operation of the membrane water treatment system is highly automated. Operations such as start and stop, dosing and online flushing can all be executed by the electronic control system, which can be unattended, requiring only manual regular inspection and dispensing, periodic maintenance and cleaning. Basically, there is no need to add additional operating staff; the routine cleaning and maintenance of membranes can be mastered in one day of training, and the difficulty is far lower than that of biochemical systems that require high comprehensive skills for employees.

Misunderstanding 2: The investment is too large to afford

Some people think that the one-time investment and depreciation replacement cost of the membrane is very high. But in fact, with the development of membrane manufacturing enterprises, the price of membranes is declining; for UF and RO systems benefits they produce far exceed the investment in the system itself.

Misunderstanding 3: The membrane is delicate and easily damaged

Some engineering companies have problems with the RO membrane system designed and constructed due to lack of experience, and users mistakenly believe that the membrane products are difficult to maintain. In fact, the main problem comes from the process design and the membrane itself. Through reasonable pre-treatment design and safety protection design, the replacement cycle of RO membrane is generally more than 3 years.

Misunderstanding 4: Membrane technology is omnipotent

Membrane technology is a unit treatment technology, which has the characteristics of low turbidity, decolorization, desalination and softening of the effluent; however, membrane technology usually needs to be combined with traditional physical and biochemical treatment processes in order to better play Advantages of advanced membrane treatment. Moreover, membrane water treatment usually has the problem of concentrated water discharge, and it also has the need for supporting other technologies, which is not a panacea.

Misunderstanding 5: The more the quantity of membranes, the better RO membrane system peformance

Within a certain range, increasing the number of membranes can improve the water production safety of the membrane system and reduce operating costs. However, when the number of membranes increases to a certain level, the amount of water that is evenly distributed to the unit membrane decreases, and the flow rate of the membrane surface of the cross-flow filtration is lower than the critical value, and the deposited debris on the membrane surface cannot be taken away, resulting in aggravation of membrane fouling and clogging. Water production performance decreases.

Moreover, after the number of membranes increases, the amount of flushing water required increases. If the flushing water pump and compressed air volume cannot meet the flushing volume requirements per unit membrane area, it will be difficult to flush thoroughly, which will aggravate membrane pollution and affect its water production performance. In addition, after the number of membranes increases, the one-time membrane investment and depreciation costs of the system will also increase.

More inquiries related to RO membrane system please contact:

Mob& Wechat& WhatsApp: (+86)13544774483

Email: sales010@water-sy.com

We will provide high-quality, all-round comprehensive professional services for project consulting, system design, manufacturing, installation and commissioning, personnel training, etc