Gaia Herbs, Brevard, North Carolina, USA. Gaia Herbs is a leading supplier of herbal supplements and nutraceuticals in the US. In order for this thriving business to continue growing, they needed to improve their wastewater treatment process. Gaia hired PurposeEnergy to design and build a metaDigesterTM dedicated to the treatment of herbal supplement wastewater. Treated waste streams include plant residuals and alcohol used in the extraction process. This project was commissioned in February, 2020.