Design Considerations for RO Plant

Additional Details

ECO- CHEM RO Plants work on the Crossflow Filtration method, which takes the feed water and uses a percentage of it as wash or reject stream, removing the solids during the filtration process.

The product flow of an RO Plant is mainly a function of temperature and pressure. System recovery (product divided by feed) is limited by the characteristics of the feed water and can be controlled through the use of recycle stream. Product quality is based on a percentage of dissolved solids fed to the membrane. There should be an economic balance between product quality and system recovery. High recoveries increase concentration of dissolved solids in the system which degrades quality, but high recoveries make the system work more efficiently and decrease waste.

Reverse Osmosis plants do not deliver to service all of the water that is fed to them .During operation. Some of the incoming is used to wash down the membrane, and only part becomes finished product water. Purified water is referred to as product to as product and wastewater is referred to as concentrate or reject . The percent of water delivered as product is called the recovery, and depends upon the membrane and on total RO plant design considerations.