Methane emissions and methanogenic community investigation from constructed wetlands in Chengdu City

Urban Climate ◽  
2021 ◽  
Vol 39 ◽  
pp. 100956
Author(s):  
Ke Zhang ◽  
Jingting Wang ◽  
Xiaoling Liu ◽  
Xiaoying Fu ◽  
Hongbing Luo ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Methane Emissions ◽  
Methanogenic Community

scholarly journals Controlling CH4 Emissions from Integrated Vertical-Flow Constructed Wetlands by Using Potassium Peroxymonosulfate (PMS) as Oxidant

2021 ◽  
Author(s):  
Hongbing Luo ◽  
YaLi Guo ◽  
Xiaoling Liu ◽  
Aiping Pu ◽  
Ke Zhang ◽  
...  
Keyword(s):  
Constructed Wetlands ◽  
Water System ◽  
Methane Emissions ◽  
Vertical Flow ◽  
Blank Group ◽  
Vertical Flow Constructed Wetlands ◽  
Oxidation Reduction ◽  
Oxidation Reduction Potential ◽  
Stem Leaf ◽  
Potassium Peroxymonosulfate

Abstract It is very important to control methane emissions to reduce global warming. In this study, an attempt was made to adjust the oxidation-reduction potential (Eh) by adding different mass of potassium peroxymonosulfate (PMS) (0 g, 31.25 g, 62.5 g, 125 g, 250 g and 500 g) to reduce methane from integrated vertical-flow constructed wetlands (IVCW). Results show that the reduced CH4 emission from IVCW was the highest with decreased by 43.5% compared to blank group (PMS=0), when adding 125g PMS. Importantly, the reduced CH4 from the root-water system of IVCW was higher than that of the stem-leaf system of IVCW, when adding PMS. It’s found that Eh not only has a significant correlation with CH4 flux, but also has a significant relationship between PMS quality, DO, water temperature and sampling time (yEh= -0.44XPMS + 6.82XDO + 0.38t - 264.1, R2 = 0.99). It concludes that PMS, as an oxidant, is a very feasible method for controlling methane emissions from IVCW. Further research may combine other methods such as microbiology, physical control and hydrology control for mitigating the CH4 emissions from constructed wetlands.

Methane Emissions from Constructed Wetlands Treating Agricultural Wastewaters

1997 ◽  
Vol 26 (4) ◽  
pp. 1056-1062 ◽  
Author(s):  
Chris C. Tanner ◽  
Donald D. Adams ◽  
Malcolm T. Downes
Keyword(s):  
Constructed Wetlands ◽  
Methane Emissions

Reduction of methane emissions from manganese-rich constructed wetlands: Role of manganese-dependent anaerobic methane oxidation

2020 ◽  
Vol 387 ◽  
pp. 123402 ◽  
Author(s):  
Wenbo Liu ◽  
Haiwen Xiao ◽  
Hongpu Ma ◽  
Yuanyuan Li ◽  
Tanveer M. Adyel ◽  
...  
Keyword(s):  
Methane Oxidation ◽  
Constructed Wetlands ◽  
Methane Emissions ◽  
Anaerobic Methane Oxidation

Effects of plant species and diversity on methane emissions and functional gene abundances in constructed wetlands

2019 ◽  
Vol 39 (22) ◽  
Author(s):  
孙红英 SUN Hongying ◽  
辛全伟 XIN Quanwei ◽  
林兴生 LIN Xingsheng ◽  
罗海凌 LUO Hailing ◽  
林辉 LIN Hui ◽  
...  
Keyword(s):  
Plant Species ◽  
Constructed Wetlands ◽  
Methane Emissions ◽  
Functional Gene
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