title: An investigation on NO removal by wet scrubbing using NaClO2 seawater solution.
abstract: The experiments were conducted to investigate the NO removal by wet scrubbing using NaClO2 seawater solution in a cyclic scrubbing mode. Results show that, when the concentration of NaClO2 in scrubbing solution is higher than 10 mM, a complete removal of NO can be achieved during the cyclic scrubbing process. The breakthrough time for seawater with 15 mM NaClO2 is enhanced by 34.3 % compared with that for NaClO2 freshwater. The extension of the breakthrough time for NaClO2 seawater is mainly ascribed to the improved utilization of NaClO2 in the solution. The good buffering ability of seawater could suppress the acidic decomposition of NaClO2 into ClO2 effectively. The analysis of reaction products indicates that the main anions in the spent liquor are chloride ions and nitrate ions. The calculation of NaClO2 utilization according to the ion chromatography also agrees well with the experimental results of breakthrough times.
authors.affiliation: Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian City, 116026 Liaoning Province People's Republic of China.
authors.forename: Zhitao
authors.identifier: 0000-0001-5501-6067
authors.initials: Z
authors.lastname: Han
authors.affiliation: Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian City, 116026 Liaoning Province People's Republic of China.
authors.forename: Shaolong
authors.initials: S
authors.lastname: Yang
authors.affiliation: Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian City, 116026 Liaoning Province People's Republic of China.
authors.forename: Dekang
authors.initials: D
authors.lastname: Zheng
authors.affiliation: Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian City, 116026 Liaoning Province People's Republic of China.
authors.forename: Xinxiang
authors.initials: X
authors.lastname: Pan
authors.affiliation: Marine Engineering College, Dalian Maritime University, No.1, Linghai Road, Dalian City, 116026 Liaoning Province People's Republic of China.
authors.forename: Zhijun
authors.initials: Z
authors.lastname: Yan
keywords: Nitric oxide; Oxidation; Scrubbing; Seawater; Sodium chlorite