# Living filtering materials

Feedstock & biomass — Living filtering materials use a living organism, biofilm or biological molecule as the active filtration element — instead of inert media like sand, activated carbon or synthetic membranes. Approaches range from worm and microbial-community biofilters to aquaporin-protein membranes and electroactive biofilms. Suppliers provide biofilm carriers and biomass for filter loading.

Source: https://en.bioecon.ru/market/feedstock-biomass/living-filtering-materials/