Efficient hexavalent chromium removal agent and preparation method thereof
A technology of hexavalent chromium and remover, which is applied in the field of water treatment, can solve problems such as difficult hexavalent chromium treatment, complicated operation, and lack of pertinence, and achieve the effects of improving water quality safety, good ecological safety, and avoiding the impact of impurities
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Embodiment 1
[0042] A high-efficiency hexavalent chromium remover, the raw materials are composed of the following proportions by weight: 20 parts of sponge iron with a particle diameter of 1-3 mm, 3 parts of copper sulfate of 0.1-0.5 mm, and 4 parts of oxalic acid of 0.1-0.5 mm.
[0043] At 20°C, the action time is 10min, and the removal rate of 10mg / L hexavalent chromium solution is 56.3%.
Embodiment 2
[0045] A high-efficiency hexavalent chromium remover, the raw materials are composed of the following proportions by weight: 20 parts of sponge iron with a particle diameter of 1-3 mm, 3 parts of copper sulfate of 0.1-0.5 mm, and 1 part of oxalic acid of 0.1-0.5 mm.
[0046] At 20°C, the action time is 10min, and the removal rate of 10mg / L hexavalent chromium solution is 61.6%.
Embodiment 3
[0048] A high-efficiency hexavalent chromium remover, the raw materials are composed of the following proportions by weight: 20 parts of sponge iron with a particle diameter of 1-3 mm, 3 parts of copper sulfate of 0.1-0.5 mm, and 2 parts of oxalic acid of 0.1-0.5 mm.
[0049] At 20°C, the action time is 10min, and the removal rate of 10mg / L hexavalent chromium solution is 50.8%.
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