Modern approaches to the utilisation of sludge waste from electroplating as a catalyst for gas flow purification: a review of technologies and prospects
DOI:
https://doi.org/10.33216/1998-7927-2025-291-5-95-108Keywords:
utilization, sludge waste, electroplating industries, catalysts, gas stream purification, thermal treatment, chemical activation, biotechnological methods, nanotechnology, environmental safetyAbstract
An analysis of modern technologies for the utilization of sludge waste from electroplating industries and their use as catalysts for gas stream purification has been conducted. The relevance of the study is due to the growing volume of industrial waste and the need to develop environmentally safe and economically feasible methods of its processing. In this context, special attention is paid to technologies that allow converting sludge waste from electroplating industries not only into by-products, but also into useful catalysts for gas stream cleaning processes. The purpose of the article is to review current approaches to the utilisation of sludge waste from electroplating, in particular, through its use as catalysts for the purification of gas streams. The study involved a systematic analysis of scientific sources, experimental studies of the catalytic properties of materials derived from sludge waste, and a comparative analysis of the economic and environmental parameters of various disposal methods. The main results of the work include an assessment of the effectiveness of various approaches, including thermal, chemical and biotechnological treatment of sludge, as well as the use of nanotechnology to enhance the activity of catalysts. It was found that the best methods are those that provide high catalytic activity at minimal energy consumption. An environmental assessment of modern sludge processing technologies is carried out. It is determined that biotechnological methods of processing are safer for the environment and more promising for small enterprises. The integration of renewable energy sources and the use of the latest materials will contribute to the ecological modernisation of industry and the development of a circular economy. Further research should be aimed at optimising technological processes, improving the efficiency of catalysts and reducing production costs. The integration of renewable energy sources and the use of the latest materials will contribute to the ecological modernisation of industry and the development of the circular economy. The results obtained can be useful for industrial enterprises in choosing waste treatment technologies and improving air purification systems, contributing to the development of environmental safety.
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