Modular graphene oxide-based microbial fuel filter and process of making and using same

A fluid filter comprising walls that form a three dimensional housing, said housing comprising:

• an interior chamber having an interior surface, at least one inlet passing through at least one of said walls to said interior chamber;
• and
• at least one outlet passing through at least one of said walls to said interior chamber, said A housing's chamber comprising a three dimensional structure comprising graphene oxide, the three dimensional structure having a first plurality of stems protruding radially inwardly from said interior surface towards a center of a void, each said stem of said first plurality of stems having two opposed branches extending circumferentially outward from a respective said stem without intercepting an adjacent stem and without intercepting said interior surface, said two opposed branches being oriented concave inwardly.