NOVELTY - Hydrogen generation system comprises a reactor vessel (104) containing a hydrogen precursor material; an inlet line adapted to introduce a reactive material and a treatment material into the reactor vessel, or a first inlet line adapted to introduce a reactive material into the reactor vessel and a second inlet line adapted to introduce a treatment material into the reactor vessel; and an outlet (110) adapted to withdraw hydrogen from the reactor vessel.    USE - The system is used for the generation of hydrogen (claimed). It is used for systems that use other hydrogen precursor materials, e.g. aluminum, magnesium, and/or magnesium-iron alloys, that can react with the reactive material. It is used to supply hydrogen at small to intermediate flow rates to various hydrogen-consuming devices, e.g. power generation systems (e.g. fuel cells) and combustion systems, e.g. cutting torches.    ADVANTAGE - The system is capable of reducing or eliminating some or all of the hazardous materials in the reaction products, provides an efficient and cost-effective method, and reducing the regulatory hurdles associated with transporting and disposing of the reaction products. The amount of the hazardous material in the reaction products is reduced by controllably reacting a chemical hydride with an aqueous solution to form the reaction products including hydrogen gas, treating the reaction products to minimize the amount of the hazardous material in the reaction products, and transporting the reaction products after the treatment step.    DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for the generation of hydrogen comprising providing the reactor vessel having an inlet and an outlet, effecting hydrogen generation step, and completing the hydrogen generation step and effecting a treatment step. The hydrogen generation step involves introducing a hydrogen precursor material into the reactor vessel; introducing a reactive material into the reactor vessel and reacting a portion of the reactive material with a portion of the hydrogen precursor material to generate reaction products including hydrogen, byproduct material, unreacted reactive material, or unreacted hydrogen precursor material; and withdrawing hydrogen from the outlet of the reactor vessel. The treatment step involves introducing a treatment material into the reactor vessel; and reacting the treatment material with the byproduct material, (ii) the unreacted reactive material, and/or the unreacted hydrogen precursor material; and displacing from the reactor vessel the byproduct material, the unreacted reactive material, the unreacted hydrogen precursor material, or hydrogen.    DESCRIPTION OF DRAWING(S) - The figure is a schematic diagram of the hydrogen generation system.    Control devices (102, 108)    Reactor vessel (104)    Outlet (110)    Agitator (122)