Research Progress of Low-Temperature Plasma Technology in the Treatment of Malodorous Gases
Abstract
With the rapid pace of urbanization, malodorous gases stemming from industrial and domestic activities present a severe threat to both the environment and human health. Conventional treatment techniques, including biological, chemical, and physical methods, suffer from drawbacks such as low efficiency, high costs, and potential secondary pollution. In contrast, modern technologies like UV photolysis purification and plasma - based approaches exhibit distinct advantages in terms of efficiency, cost - effectiveness, and environmental friendliness. Low - temperature plasma technology, as an emerging environmental deodorization method, can efficiently decompose a wide range of malodorous gases, such as NH₃, H₂S, and VOCs, by generating high - energy active particles through gas ionization. Under specific conditions, its removal efficiency can exceed 95%, with a minimal risk of secondary pollution. This paper systematically reviews the principles, application status, optimization directions, and future challenges of this technology, offering novel perspectives for environmental governance.
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