There are a number of applications where no wastewater can be disposed. The only allowable outputs of the system are clean water and dried salt. These are called ZLD, or zero liquid discharge applications.
Removing all of the salts and generating a completely dried salt are difficult and expensive, requiring multiple types of technologies, high energy, expensive equipment, and high maintenance costs.
The RDI™ Desalination System can help reduce the overall number of unit ops and costs by concentrating the brine stream for processing by the crystallizer. This reduces the size of the downstream equipment, which is the most expensive part of the unit op train.