System and method for generating chlorine dioxide

Some systems for generating chlorine dioxide include a chlorine-dioxide generating composition comprising an alkali chlorite salt, acid, cellulose, a super absorbent, and optionally a surfactant. Systems disclosed herein are able to generate chlorine-dioxide gas, chlorine-dioxide solution, and chlorine-dioxide solution with surfactants. Some systems for generating chlorine dioxide include a canister containing a chlorine-dioxide generating composition. The canister includes at least one porous region that places an exterior of the canister in fluidic communication with an interior of the canister. The porous region, which in some embodiments, is realized as a mesh, is characterized by a size in a range of about 20 mesh to about 325 mesh.