Ruthenium is a rare and precious metal element, which is widely used in catalysts, electronic components, medicine and other fields. However, in the process of ruthenium mining and use, a large amount of ruthenium waste liquid will also be produced, which contains high concentrations of ruthenium ions, which has serious harm to the environment and human health. Therefore, the treatment of ruthenium waste liquid is not only an environmental responsibility, but also a profitable undertaking. So, how to achieve efficient and environmentally friendly treatment of ruthenium waste liquid? This article will focus on the following aspects**.
First of all, it is necessary to choose the right method. At present, the main methods for the extraction of ruthenium from ruthenium waste liquid are chemical, physical and biological. The chemical method is commonly used in the extraction method and the oxidative precipitation method, the physical method is commonly used in the distillation method and the ion exchange method, and the biological method is mainly used for the treatment of organic wastewater. These methods have their own advantages and disadvantages, and need to be selected and optimized according to factors such as ruthenium waste, composition, and properties. In general, extraction and distillation methods are suitable for waste liquids with higher ruthenium content, oxidative precipitation methods and ion exchange methods are suitable for waste liquids with lower ruthenium content, and biological methods are suitable for waste liquids containing organic matter. When choosing the best method, we should also consider factors such as efficiency, cost, safety, and operability, and strive to achieve the best results.
Secondly, it is necessary to pay attention to the pre-treatment and post-treatment of waste liquid. Before the ruthenium waste liquid is treated, the waste liquid should be properly pretreated to remove impurities, adjust the pH, concentrate the waste liquid, etc., so as to improve the efficiency and quality of the waste liquid. After the ruthenium waste liquid is treated, the remaining waste liquid should be properly post-treated to meet environmental protection standards and avoid secondary pollution. For example, the harmful substances in the waste liquid can be removed or reduced through neutralization, precipitation, filtration, adsorption and other methods, so that the pH value, color, turbidity, COD, BOD and other indicators of the waste liquid meet the requirements of discharge.
Finally, it is necessary to make full use of the ruthenium of **. The treatment of ruthenium waste liquid can not only avoid environmental pollution, but also bring important value to production and scientific research. Ruthenium can be used to extract ruthenium, palladium, etc., and can also be used to produce catalysts, electronic components, etc.; In scientific research, it can be used to carry out the research of new catalysts, the preparation of environmentally friendly materials, etc. Depending on the application, ruthenium needs to be refined and purified differently to meet different quality standards. Ruthenium will also fluctuate with the changes in supply and demand in the market, generally between a few hundred yuan and several thousand yuan per gram.
The treatment of ruthenium waste liquid is a work of great significance, which requires the use of appropriate methods, attention to pretreatment and post-treatment, and make full use of ruthenium to achieve efficient and environmentally friendly treatment. In this way, we can not only protect the environment, but also create value and achieve sustainable development.