Nitrogen oxide control project

The project was officially put into operation in May 2021, and is used to treat the high-concentration nitrogen oxide waste gas produced by dissolving indium nitric acid. According to the data provided by the owner, the concentration of nitrogen oxides produced by the nitric acid dissolving indium reactor is as high as 180,000mg/m3, and the project factory area The linear distance from residential buildings is less than 1,000 meters, and the emission concentration of nitrogen oxides is required to be no less than 100mg/m3, and the exhaust gas is required to be colorless and odorless.

In view of the special working conditions of this project, we design and adopt two-stage bubbling oxidation + three-stage water jet treatment + four-stage jet absorption process for treatment, and the acid liquid after water absorption is recycled by the owners.

During the test run with materials, the owner detected that the nitrogen oxide emission concentration was 80mg/m3, and the project is currently running stably.