REMOVAL PERFORMANCE AND DEGRADATION MECHANISM OF PARTICULATE MATTER AND H<sub>2</sub>S GAS BY SOLUTION ABSORPTION-ELECTRO-FENTON PROCESS

LU Jinsuo; MA Xinting; JIANG Hao; YU Mengzhu; SONG Guang; CHEN Xingdu

doi:10.13205/j.hjgc.202412019

Volume 42 Issue 12

Dec. 2024

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2024 > 42(12): 155-165

LU Jinsuo, MA Xinting, JIANG Hao, YU Mengzhu, SONG Guang, CHEN Xingdu. REMOVAL PERFORMANCE AND DEGRADATION MECHANISM OF PARTICULATE MATTER AND H2S GAS BY SOLUTION ABSORPTION-ELECTRO-FENTON PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 155-165. doi: 10.13205/j.hjgc.202412019

Citation:

LU Jinsuo, MA Xinting, JIANG Hao, YU Mengzhu, SONG Guang, CHEN Xingdu. REMOVAL PERFORMANCE AND DEGRADATION MECHANISM OF PARTICULATE MATTER AND H₂S GAS BY SOLUTION ABSORPTION-ELECTRO-FENTON PROCESS[J]. ENVIRONMENTAL ENGINEERING , 2024, 42(12): 155-165. doi: 10.13205/j.hjgc.202412019

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REMOVAL PERFORMANCE AND DEGRADATION MECHANISM OF PARTICULATE MATTER AND H₂S GAS BY SOLUTION ABSORPTION-ELECTRO-FENTON PROCESS

doi: 10.13205/j.hjgc.202412019

LU Jinsuo^1,2,3,
MA Xinting^1,2,
JIANG Hao^1,2,
YU Mengzhu^1,2,
SONG Guang^1,2,3,
CHEN Xingdu^{1,2,3
,
,}

1. School of Environmental and Municipal Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
2. Shaanxi Key Laboratory of Environmental Engineering, Xi'an University of Architecture and Technology, Xi'an 710055, China;
3. State Key Laboratory of Green Building in West China, Xi'an University of Architecture and Technology, Xi'an 710055, China

Received Date: 2024-02-03
Available Online: 2025-01-18

Abstract

Abstract

The solution absorption method is an effective measure to solve the pollution of particulate matter and H₂S odor in sewage treatment plants and landfills. However, the non-recycling of absorbent hindered the promotion and use of adsorption method. In this study, a coupling process of solution absorption and electro-Fenton was designed to absorb pollutants by tiny bubbles generated by polypyrrole film, the effects of gas flow rate and functional solution type on the absorption efficiency of H₂S and particulate matter were investigated and the reaction kinetics was analyzed. Meanwhile, the oxidation effect on sulfide, mechanism of absorption and oxidation, and the reusability of the coupling process of solution absorption, and electro-Fenton was also explored. The results showed that the absorption rates of H₂S and particulate matter could reach 89.5% and 92.7% in 7 hours respectively, under the condition of an air flow rate of 85 mL/min and Na₂SO₄+FeSO₄ as the functional solution, and the absorption processes followed the first-order kinetic model; the maximum removal rate of S^2- by electro-Fenton reached 96.7% in 60 minutes and the final oxidation product was SO^2-₄; the coupling process of solution absorption and electro-Fenton showed ideal characteristic of adsorption, oxidation and cyclic stability, and has a large potential application for odor treatment.
- solution absorption and electro-Fenton process,
- hydrogen sulphide,
- particulate matter,
- removal mechanism,
- cyclic stability

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References(31)

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