Study on Oxidation and Absorption of NO Using Micro-nano Bubbles System
YANG Guanghui
JIANG Dong
XIA Hualei
LI Dengxin
Abstract：With the property of large surface area, higher internal pressure than the external pressure and strong oxidation, micro-nano bubbles, remaining in the liquid phase for long, was used for the absorption of NO. In this experimental study, a micro-nano bubble generator was used to mix water with air and NO to produce the gas-liquid system of micro bubbles, which was to be used to absorb NO. The experimental result showed that as NO volume concentration was 1 250×10-6, pH value of the system being equal to 7, oxidation and absorption efficiency of NO reached 50.1％; and NO absorption efficiency could reach up to 82.1％ on condition that Fe2+was added into the aqueous phase, NO volume concentration was 3 750×10-6, NaCl mass concentration 0.5 g/L, sodium dodecyl sulfate (SDS) concentration 6 mg/L, the concentration of Fe2+2 mmol/L, and p H value of the system being 5. In addition, if Mn2+ (concentration of Mn2+was 2 mmol/L) instead of Fe2+was added into the aqueous phase, other conditions remained unchanged, the absorption efficiency of NO could reach as high as 92.3％.
Keywords：micro-nano bubblesnitrogen oxidesoxidation and absorption
Publication Date：2018-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：5( 135-138,152 )