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Nomura's RO unit is designed and constructed in view of high rejection, high recovery rate, and high flux.
In particular, HERO® system is based on a new concept that has never been seen before. While using versatile RO membrane, our system can bring out its highest performance.
Particularly, HERO® is outstanding in cost performance and can be widely applied to various purposes such as make-up /water reclamation treatments in an ultrapure water system.
Reverse Osmosis (RO) units
HERO® is a high efficiency RO system that has many new advantages by operating RO system in high pH (high alkali) range.
This system has overcome all disadvantages of the conventional RO system and also incorporates the advantages of ion exchange system (2B3T method).
Nomura Micro Science has delivered large number of this system especially in Japan and South Korea.
Features
| High recovery ratio | It has become possible to increase the recovery ratio up to 90-98%, which was previously determined by silica concentration in conc by improving silica solubility at high pH (high alkali) operation. |
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| High Rejection ratio | Even though the same membrane as used in conventional systems is used, it is possible to increase the rejection ratio of silica, boron, anions, and organic matter (TOC) to the maximum. |
| High flux | It is possible to increase flux per membrane, which enables to reduce quantity of membranes. |
| Low fouling | It is possible to reduce the clogging of membrane by contaminants such as SS (suspended solids), particles, and bacteria in feed water. |
HERO® with the above features is a high performance Make-up system. Compared to ion exchange system (2B3T method), it is possible to reduce feed water consumption and drain volume as well as acid and alkali consumption.
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