Optimizing an airborne mass-balance methodology for accurate emission rate quantification of industrial facilities: A case study of industrial facilities in South Korea.

Accurate estimation of emissions from industrial point sources is crucial in understanding the effectiveness of reduction efforts and establishing reliable emission inventories. In this study, we employ an airborne Chemical Ionization Mass Spectrometry (CIMS) instrument to quantify sulfur dioxide (SO) emissions from prominent industrial facilities in South Korea, including power plants, a steel mill, and a petrochemical facility. Our analysis utilizes the box mass balance technique to derive SO emissions and associated uncertainty.

Freezing-Induced Simultaneous Reduction of Chromate and Production of Molecular Iodine: Mechanism, Kinetics, and Practical Implications.

A new method for the concurrent treatment of Cr(VI)-contaminated wastewater and production of the useful I chemical was developed. The method is based on the redox reaction between Cr(VI) and I that occurs when an aqueous wastewater solution containing Cr(VI) and I is frozen, producing I and allowing for the effective removal of Cr. The redox reaction occurs primarily because of the accumulation of Cr(VI), I, and protons in the ice grain boundaries formed during freezing (i.