The nanofiltration system was installed to concentrate an ethanol byproduct called vinasse (vinaza).

The i84 VSEP nanofiltration system currently recovers 70% of the raw vinasse as clean water for irrigation, leaving a concentrated vinasse that’s just 30% of its starting volume. This high nutrient value vinasse stream is currently sent to storage ponds while the ethanol producer weighs a multitude of options for beneficial reuse.
“With a vinasse to ethanol ratio of 16:1, the need for innovative treatment methods is clear. The success of this full-scale system validates the data collected at both the lab and pilot phases of the technology evaluation, and promises a very bright future for VSEP in Brazil,” said New Logic CEO Greg Johnson.