Active Member
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[China]
Address: Address: 1floor, C building, Indstrial 3 Road No.38, Jiahe Wanggang, Baiyun District,GuangZhou, China.
Contact name:Andrea Xu
Guangzhou Kai Yuan Water Treatment Equipment Co., Ltd. |
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Reverse Osmosis Membrane Cleaning Equipment RO Membrane Washing Machine Maintenance Of Water Treatment Accessories
The membrane pore size of the reverse osmosis membrane is very small, which can effectively remove dissolved salts, colloids, microorganisms, organic matter, etc. in the water, with an efficiency close to 98%.
The back osmosis equipment has the characteristics of good water quality after treatment, low energy consumption, simple process and easy operation.
The reverse osmosis membrane will eventually need to be cleaned. It is recommended that you clean the RO system before your RO system shows a tendency to be contaminated, before it is out of service for a long time, or when routine maintenance is scheduled. When the following pollution characteristics appear (standardized water production decreased by 10-15%, water quality decreased by 10-15% after standardization, or the pressure drop between feed water and concentrated water increased by 10-15%), it indicates that your RO system needs Cleaned.
Application: reverse osmosis membranes are widely used in electric power, petrochemical, steel, electronics, medicine, food and beverage, municipal and environmental protection fields, in the desalination of seawater and brackish water, boiler feed water, industrial pure water and electronic grade ultrapure water preparation, pure drinking It plays an important role in water production, wastewater treatment and special separation processes.
RO system is dirty and needs to be cleaned. Generally, the acceptable cleaning frequency is once every 3 to 12 months.
| It is usually necessary to use various cleaning chemicals in a specific order for cleaning to obtain an obvious cleaning effect. |
| For example, first use a low-pH cleaning to remove substances such as scale, and then use a high-pH cleaning solution to remove organic matter. |
| However, sometimes a high-pH cleaning solution is used to remove oily dirt first, and then a low-pH cleaning solution is used. |
| Some cleaning fluids are also added with detergents, which will help to remove severely polluted biological and organic impurities. |
| What must be remembered is to choose the correct cleaning chemicals or cleaning steps. |
| In RO design, the use of RO product water to flush the dirt in the system is usually neglected. This method can reduce the number of RO cleanings. Soaking RO membrane modules with product water during equipment shutdown can help dissolve scale and loose deposits, thus reducing the frequency of chemical cleaning. |
| RO cleaning tank: The size of the cleaning tank is required to be able to contain the water discharged from hoses, pipes and pressure vessels; the cleaning tank should be designed to be 100% emptied; it is easy to add and mix cleaning chemicals; it is designed at the outlet of the RO cleaning pump The recirculation pipe has vents, an overflow pipe and a return pipe located near the bottom to ensure that it is not easy to generate foam when using surfactants. |
| RO cleaning pump: When designing the cleaning pump, it should be considered that an appropriate lateral flow rate can be provided to facilitate cleaning of the membrane. For 8-inch membrane elements, the cleaning fluid speed should be controlled at 30 to 40 gpm; for 4-inch membrane elements, the flow rate should be controlled at 8 to 10 gpm. During the cleaning process, the recommended maximum pressure is 60 psi to minimize the amount of water produced during cleaning and reduce the possibility of contaminants re-depositing on the surface of the membrane. |
| Security filter for RO cleaning: A filter with a pore size of 5 to 10 microns is usually used to remove the dirt from the cleaning. |
| RO cleaning box heater or cooler: the best temperature for cleaning is 35 to 45°C. It should be noted that the RO cleaning pump generates heat during recirculation. |
To know more details, please feel free to contact us.
