Biorefineries Waste WaterWillow Trees to Treat Municipal Wastewater by Axel BarrettJune 23, 2021June 23, 2021 A 'bio-refinery': using the chemistry of willow trees to treat municipal wastewater Subscribe Now! This content is only available to paid subscribers. Buy a subscription today. More Info buy Log in Share this:TweetLike this:Like Loading... Related