Nanobubble aeration enhanced wastewater treatment and bioenergy generation in constructed wetlands coupled with microbial fuel cells

Simple item page
dc.contributor.authorLyu, Tao
dc.contributor.authorWu, Yuncheng
dc.contributor.authorZhang, Yang
dc.contributor.authorFan, Wei
dc.contributor.authorWu, Shubiao
dc.contributor.authorMortimer, Robert J. G.
dc.contributor.authorPan, Gang
dc.date.accessioned2023-07-12T09:55:17Z
dc.date.available2023-07-12T09:55:17Z
dc.date.issued2023-06-29
dc.description.abstractArtificial aeration is a widely used approach in wastewater treatment to enhance the removal of pollutants, however, traditional aeration techniques have been challenging due to the low oxygen transfer rate (OTR). Nanobubble aeration has emerged as a promising technology that utilise nano-scale bubbles to achieve higher OTRs owing to their large surface area and unique properties such as longevity and reactive oxygen species generation. This study, for the first time, investigated the feasibility of coupling nanobubble technology with constructed wetlands (CWs) for treating livestock wastewater. The results demonstrated that nanobubble-aerated CWs achieved significantly higher removal efficiencies of total organic carbon (TOC) and ammonia (NH4+-N), at 49 % and 65 %, respectively, compared to traditional aeration treatment (36 % and 48 %) and the control group (27 % and 22 %). The enhanced performance of the nanobubble-aerated CWs can be attributed to the nearly three times higher amount of nanobubbles (Ø < 1 μm) generated from the nanobubble pump (3.68 × 108 particles/mL) compared to the normal aeration pump. Moreover, the microbial fuel cells (MFCs) embedded in the nanobubble-aerated CWs harvested 5.5 times higher electricity energy (29 mW/m2) compared to the other groups. The results suggested that nanobubble technology has the potential to trigger the innovation of CWs by enhancing their capacity for water treatment and energy recovery. Further research needs are proposed to optimise the generation of nanobubbles, allowing them to be effectively coupled with different technologies for engineering implementation.en_UK
dc.identifier.citationLyu T, Wu Y, Zhang Y, et al., (2023) Nanobubble aeration enhanced wastewater treatment and bioenergy generation in constructed wetlands coupled with microbial fuel cells. Science of the Total Environment, Volume 895, October 2023, Article number 165131en_UK
dc.identifier.issn0048-9697
dc.identifier.urihttps://doi.org/10.1016/j.scitotenv.2023.165131
dc.identifier.urihttps://dspace.lib.cranfield.ac.uk/handle/1826/19959
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/*
dc.subjectEnvironmental sustainabilityen_UK
dc.subjectLivestock wastewater treatmenten_UK
dc.subjectMicro/nanobubbleen_UK
dc.subjectNature-based solutionsen_UK
dc.subjectNutrient removalen_UK
dc.subjectTreatment wetlanden_UK
dc.titleNanobubble aeration enhanced wastewater treatment and bioenergy generation in constructed wetlands coupled with microbial fuel cellsen_UK
dc.typeArticleen_UK

Files

Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
Nanobubble_aeration_enhanced_wastewater_treatment-2023.pdf
Size:
1.73 MB
Format:
Adobe Portable Document Format
Description:
Download
License bundle
Now showing 1 - 1 of 1
No Thumbnail Available
Name:
license.txt
Size:
1.63 KB
Format:
Item-specific license agreed upon to submission
Description:
Download

Collections

Staff publications (SWEE)