A　new　hydrothermal　system　has　been　designed　to　recycle　waste　WC-Co　hardmetal　with　low　cobalt　(Co)　content　(3　%).　In　the　solution　system,　nitric　acid　was　designed　to　dissolve　Co,　H2O2　served　as　oxidant　to　accelerate　the　oxidation　of　the　WC-Co　hardmetals,　and　fluorine　(F-)　was　designed　to　dissolve　and　recrystallize　generated　tungsten　oxides,　which　were　found　to　possess　a　layered　structure　using　scanning　electron　microscopy　and　transmission　electron　microscopy.　The　obtained　tungsten　oxides　were　identified　as　WO3　center　dot　0.33H(2)O　by　X-ray　diffraction　and　their　specific　surface　area　was　measured　as　89.2　m(2)　g(-1)　via　N-2　adsorption-desorption　techniques.　The　present　layered　structure　tungsten　oxides　exhibited　a　promising　capability　for　removing　lead　ion　(Pb2+)　and　organic　species,　such　as　methyl　blue.　The　adsorption　model　was　found　to　be　in　agreement　with　Langmuir　isotherm　model.　Given　the　facile　synthesis　procedure　and　promising　properties　of　final　products,　this　new　approach　should　have　great　potential　for　refining　some　other　waste　hardmetals　or　tungsten　products.