Preparation method of silica gel load ruthenium catalyst Ruth-3 used for sewage treatment

Abstract

The invention discloses a preparation method of a silica gel load ruthenium catalyst Ruth-3 used for sewage treatment. The silica gel load ruthenium catalyst comprises the following components in parts by weight: 20-30 parts of rough silica gel, 20-40 parts of fine silica gel, 20-40 parts of silica gel H, 15-40 parts of 6,6'- dyhydroxy dipyridyl, 20-30 parts of hydroxyl-substituted terpyridyl and 20-30 parts of ruthenium chloride. The preparation method for the silica gel load ruthenium catalyst Ruth-3 comprises the following steps: A) proportionally mixing ethyl alcohol with water so as to prepare a solvent, adding rough silica gel, fine silica gel, silica gel H, 6,6'- dyhydroxy dipyridyl, hydroxyl-substituted terpyridyl and ruthenium chloride at weight part into the solvent and uniformly stirring and mixing; B) heating to 80-120 DEG C, reacting for 6-10 hours, and then removing the solvent under vacuum condition, and baking and activating the solid residues at high temperature. The invention has the beneficial effects that 1) the organic matter in water can be efficiently oxidative degraded under the existence of oxidizing agent; 2) toxic gas and harmful matter are not generated in the reaction process; 3) the catalyst can be recycled after the reaction is ended.

Description

technical field [0001] The invention relates to the field of sewage treatment, in particular to a preparation method of silica gel-supported ruthenium catalyst Ruth-3 for sewage treatment. Background technique [0002] At present, the lack of water resources has become one of the major problems plaguing human development. Water pollution is an environmental problem that spreads all over the world. Whether in developing countries or developed countries, this problem has attracted more and more attention. Now, countries, especially developed countries, spend huge manpower and financial resources on the treatment of industrial sewage every year. In order to improve water efficiency, countries all over the world vigorously promote the work of "water saving and emission reduction". With the continuous improvement of process water requirements, the deep purification and reuse process of sewage has become a shortcut to achieve the goal of water saving and emission reduction. [...

AI Technical Summary

Problems solved by technology

[0005] Catalysts play an extremely important role in the method for treating sewage by chemical methods. However, in the process of sewage treatment, the catalysts in the prior art, due to the properties of catalyst active substances and catalyst carriers, and factors such as their distribution , resulting in the failure of the catalyst to achieve the desired effect in the process of sewage treatment; in addition, the catalysts in the prior art are generally disposable, that is, not recyclable, and the raw materials and preparation costs of the catalyst are also high, causing great waste of resources, and the catalyst is discarded after use, causing secondary pollution