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In fields such as chemical engineering and pharmaceuticals, the rapid and efficient separation of toluene and hydrochloric acid solution has always been a critical step. Traditional separation methods, such as static settling, suffer from major drawbacks including bulky equipment, low…

The flue dust generated during copper smelting is rich in valuable metals such as copper, zinc, and bismuth, making it an “mine” awaiting efficient development. However, traditional treatment processes for flue dust leachate (such as cementation and precipitation) often suffer…

In industries such as coking, petrochemicals, pharmaceuticals, and dyes, the phenol-containing wastewater produced is complex in composition, highly toxic, and poorly biodegradable, making it a persistent challenge in industrial wastewater treatment. An advanced technology—solvent extraction, known for its high efficiency,…

In various industrial sectors such as chemical manufacturing, pharmaceuticals, and hydrometallurgy, oxalic acid is widely used as an important raw material and cleaning agent. However, the resulting high-concentration oxalic acid wastewater has become a major challenge for enterprises pursuing sustainable…

In the production process of chemical enterprises engaged in stainless steel processing, acids are used for surface treatment, which generates a large amount of pickling leachate containing heavy metal elements such as chromium, nickel, and iron. If these metals can…

During the production processes in industries such as chemicals, pesticides, dyes, and pharmaceuticals, large amounts of wastewater containing nitrobenzene are inevitably generated. This type of wastewater is highly toxic, poorly biodegradable, and chemically stable, making it a hazardous waste under…