Sweetwater Energy has created a biomass conversion technology, producing pure form of lignin that works as a raw material for high-quality activated carbons. This native-lignin can be carbonized and activated to produce high-end powdered activated carbons for municipal potable water and home water filters markets. The company is currently using hardwoods from Minnesota. Their long term plans include using multiple feedstocks around the world such as corn stover, wheat straw, soft woods and sugar cane bagasse. According to independent studies, Sweetwater’s lignin-based activated carbon outperformed the others in 34 of 36 test. Continue to original source…
