Waste water reused
The University of California have been assessing winery waste water samples to understand its potential effect on the soil and resulting wine. They concluded after the study that under the right conditions waste water is a viable source to irrigate vineyards, which is good news for those areas that suffer from droughts. But growers need to proceed with caution and gather site-specific soil and waste water data. Many wineries already treat their waste water, the biggest challenge to being able to use it to irrigate vines is its excess salinity introduced via cleaning agents. A solution, and trend already growing within the wine industry, would be to switch from sodium-based to potassium-based cleaners.