Reverse Osmosis Desalination – Wastewater Reuse

Reverse Osmosis Desalination - Wastewater Reuse

Reverse Osmosis (RO) is a widely accepted technology for tertiary wastewater reuse. In these applications based on the pretreatment used, RO water recoveries can be between 70-90% with salt rejection rates between 90-99%.

The most critical issue in treating industrial wastewater using GWT Reverse Osmosis technology is pretreatment. Secondary pretreatment guards these RO membranes from the effects of mineral and organic fouling, and chemical attack.

Prior to considering reverse osmosis in a tertiary wastewater reuse application, a complete water analysis is required. Using this analysis, we can identify potential organic or mineral foulants that will effect system performance. Elevated levels of COD and BOD can also be contributing factors to RO membrane fouling. After analyzing the clients water analysis, GWT determines the specific optimal pretreatment technologies to be used prior to the RO system to minimize operating costs and maximize the production of high quality treated water.

In many applications, using Reverse Osmosis as a tertiary polishing treatment step in industrial wastewater reuse with elevated total dissolved solids (TDS), can provide water that would be suitable for reuse in many industrial process water applications.

GWT Reverse Osmosis tertiary wastewater reuse system solutions have applications within:

GWT Industrial Wastewater RO System Benefits:

Can be integrated with an existing membrane filtration system or other pretreatment technologies to achieve up to 80+% rinse water recycle/reuse.
Reduces water and sewer discharge costs.
Modular design for ease of installation.
Ability to handle high levels of silica and other specific contaminants using pH adjustment and anti-scalants.

We look forward to working with you to discuss these specific industrial tertiary water reuse requirements. Contact our experts to learn how our specialized tertiary Reverse Osmosis Desalination solutions for wastewater reuse can help you meet your sustainability goals.