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Reverse osmosis is a technology that uses the osmotic characteristics of a semi-permeable membrane to perform reverse osmosis of the solvent to the solution under a certain pressure to achieve the separation of the solvent solution. The reverse osmosis membrane can intercept more than 99% of inorganic salts, organic colloids, and macromolecular substances in water to produce pure water. Reverse osmosis has been widely used in pure water preparation, water softening, desalination of seawater and brackish water, and reuse of reclaimed water. According to the different needs of different users for water quality, the reverse osmosis system can be designed as secondary treatment to obtain higher water quality.
A complete reverse osmosis (RO) treatment system should include: booster pump, sand carbon filter softening pretreatment equipment, membrane module host, control system, water quality monitoring system, timing flushing and CIP cleaning system, etc. Due to the variety of raw water and complex water quality components, a suitable pretreatment system is required, which plays a vital role in the stable operation of the RO system.
Process Flow:
1. One-stage Reverse Osmosis Pure Water System (system desalination rate ≥ 96%)
Applicable industries: food and beverage, sugar refining, fine chemicals, direct drinking water systems in schools and hotels, low-pressure boilers, and industries with conductivity requirements ≤ 10us/cm
2.1. Two-stage Reverse Osmosis Pure Water System (system desalination rate ≥ 99%)
Applicable industries: food and beverage, chemical pure products, solid tablet pharmaceuticals, medium pressure boilers and industries with water conductivity ≤ 5us/cm
③Two-stage Reverse Osmosis Ultrapure Water System
Applicable industries: Chemically pure analytical products, solid tablets, infusion pharmaceuticals, electronic chips, medium and high pressure boilers, and industries with water resistivity ≥ 12MΩ/CM
Reverse Osmosis System Design Features:
● Excellent and stable water quality
● The desalination rate of the system can be ≥98%
● The system runs automatically and unattended
● Sound and light alarm for water quality exceeding the standard and equipment failure
● No secondary pollution to the water body, no impact on the environment
● High recovery rate, once RO concentrated water can be reused again
● Realize modularization or container design, very small amount of on-site installation, no impact on the construction of the owner
Reverse Osmosis Host Operating Parameters
Model | Water production | Raw water volume（m3/h） | Power（kw） | Size LBH（m） | |||
（m3/h） | 1 stage（I） | 2 stage（II） | 1 stage（I） | 2 stage（II） | 1 stage（I） | 2 stage（II） | |
| PKRO-2- | 2 | 3 | 3.6 | 3 | 5.2 | 2.2×0.7×1.6 | 2.2×0.8×1.7 |
| PKR0-5- | 5 | 6.9 | 8.2 | 8 | 12 | 2.3×0.7×1.6 | 2.3×0.8×1.8 |
| PKRO-10- | 10 | 13.6 | 16 | 15 | 27 | 3.5×1×1.7 | 4.5×1.5×2 |
| PKRO-20- | 20 | 27 | 32 | 22 | 38 | 5×1.4×1.8 | 7.5×1.4×2 |
| PKRO-30- | 30 | 40 | 47 | 37 | 60 | 6×1.5×2 | 7.5×2×2.5 |
| PKRO-40- | 40 | 53.5 | 63 | 40 | 71 | 6.5×1.5×2 | 8×2×2.5 |
Remark:
The above parameters are based on the statistics of the RO main engine of the ordinary pure water system. The power consumption is the data of the high-voltage RO membrane element, and the power consumption of the low-voltage membrane element is reduced by about 40%, but the system desalination rate will be reduced by 1-2%; the equipment size can be determined according to the site occupation.
