An innovative biochar-amended substrate vertical flow constructed wetland for low C/N wastewater treatment: Impact of influent strengths

Xu Zhou; Chenglong Liang; Lixia Jia; Likui Feng; Ruigang Wang; Haiming Wu

doi:10.1016/j.biortech.2017.09.044

An innovative biochar-amended substrate vertical flow constructed wetland for low C/N wastewater treatment: Impact of influent strengths

Xu Zhou
, Chenglong Liang
, Lixia Jia
, Likui Feng
, Ruigang Wang
, Haiming Wu^*

^*Corresponding author for this work

Northwest Agriculture and Forestry University
Ministry of Agriculture of the People's Republic of China

Research output: Contribution to journal › Article › peer-review

160 Scopus citations

Abstract

Application of biochar can be an effective and low cost technique for wastewater treatment while reducing greenhouse gas emissions. In this study, biochar was used as substrates in Vertical flow constructed wetlands (VFCWs) for enhancing the removal of contaminant from low C/N wastewaters with different influent strengths. The removal of organic matter and nitrogen in biochar-added and non-biochar-added VFCWs with different low C/N influent strengths were evaluated systematically. The results demonstrated that combining VFCWs and biochar addition could be an appropriate strategy as compared to conventional VFCWs with average removal of organic pollutants (85%), NH₄ ⁺-N (39%) and TN (39%) especially at high influent strengths. Meanwhile, N₂O emission was also significantly lower in biochar-added VFCWs (138–1008 μg m⁻² h⁻¹) than that in non-biochar-added VFCWs (164–1304 μg m⁻² h⁻¹) under different influent strengths. We believe that VFCWs by adding biochar can be a useful technology for treating low C/N wastewaters.

Original language	English
Pages (from-to)	844-850
Number of pages	7
Journal	Bioresource Technology
Volume	247
DOIs	https://doi.org/10.1016/j.biortech.2017.09.044
State	Published - 2018
Externally published	Yes

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

Keywords

Biochar
Constructed wetlands
Influent strengths
Nitrogen removal
Nitrous oxide

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10.1016/j.biortech.2017.09.044

Cite this

@article{290d6b109a1c474790f7254c35718910,

title = "An innovative biochar-amended substrate vertical flow constructed wetland for low C/N wastewater treatment: Impact of influent strengths",

abstract = "Application of biochar can be an effective and low cost technique for wastewater treatment while reducing greenhouse gas emissions. In this study, biochar was used as substrates in Vertical flow constructed wetlands (VFCWs) for enhancing the removal of contaminant from low C/N wastewaters with different influent strengths. The removal of organic matter and nitrogen in biochar-added and non-biochar-added VFCWs with different low C/N influent strengths were evaluated systematically. The results demonstrated that combining VFCWs and biochar addition could be an appropriate strategy as compared to conventional VFCWs with average removal of organic pollutants (85\%), NH4 +-N (39\%) and TN (39\%) especially at high influent strengths. Meanwhile, N2O emission was also significantly lower in biochar-added VFCWs (138–1008 μg m−2 h−1) than that in non-biochar-added VFCWs (164–1304 μg m−2 h−1) under different influent strengths. We believe that VFCWs by adding biochar can be a useful technology for treating low C/N wastewaters.",

keywords = "Biochar, Constructed wetlands, Influent strengths, Nitrogen removal, Nitrous oxide",

author = "Xu Zhou and Chenglong Liang and Lixia Jia and Likui Feng and Ruigang Wang and Haiming Wu",

note = "Publisher Copyright: {\textcopyright} 2017 Elsevier Ltd",

year = "2018",

doi = "10.1016/j.biortech.2017.09.044",

language = "英语",

volume = "247",

pages = "844--850",

journal = "Bioresource Technology",

issn = "0960-8524",

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}

TY - JOUR

T1 - An innovative biochar-amended substrate vertical flow constructed wetland for low C/N wastewater treatment

T2 - Impact of influent strengths

AU - Zhou, Xu

AU - Liang, Chenglong

AU - Jia, Lixia

AU - Feng, Likui

AU - Wang, Ruigang

AU - Wu, Haiming

PY - 2018

Y1 - 2018

N2 - Application of biochar can be an effective and low cost technique for wastewater treatment while reducing greenhouse gas emissions. In this study, biochar was used as substrates in Vertical flow constructed wetlands (VFCWs) for enhancing the removal of contaminant from low C/N wastewaters with different influent strengths. The removal of organic matter and nitrogen in biochar-added and non-biochar-added VFCWs with different low C/N influent strengths were evaluated systematically. The results demonstrated that combining VFCWs and biochar addition could be an appropriate strategy as compared to conventional VFCWs with average removal of organic pollutants (85%), NH4 +-N (39%) and TN (39%) especially at high influent strengths. Meanwhile, N2O emission was also significantly lower in biochar-added VFCWs (138–1008 μg m−2 h−1) than that in non-biochar-added VFCWs (164–1304 μg m−2 h−1) under different influent strengths. We believe that VFCWs by adding biochar can be a useful technology for treating low C/N wastewaters.

AB - Application of biochar can be an effective and low cost technique for wastewater treatment while reducing greenhouse gas emissions. In this study, biochar was used as substrates in Vertical flow constructed wetlands (VFCWs) for enhancing the removal of contaminant from low C/N wastewaters with different influent strengths. The removal of organic matter and nitrogen in biochar-added and non-biochar-added VFCWs with different low C/N influent strengths were evaluated systematically. The results demonstrated that combining VFCWs and biochar addition could be an appropriate strategy as compared to conventional VFCWs with average removal of organic pollutants (85%), NH4 +-N (39%) and TN (39%) especially at high influent strengths. Meanwhile, N2O emission was also significantly lower in biochar-added VFCWs (138–1008 μg m−2 h−1) than that in non-biochar-added VFCWs (164–1304 μg m−2 h−1) under different influent strengths. We believe that VFCWs by adding biochar can be a useful technology for treating low C/N wastewaters.

KW - Biochar

KW - Constructed wetlands

KW - Influent strengths

KW - Nitrogen removal

KW - Nitrous oxide

UR - https://www.scopus.com/pages/publications/85030685847

U2 - 10.1016/j.biortech.2017.09.044

DO - 10.1016/j.biortech.2017.09.044

M3 - 文章

C2 - 30060421

AN - SCOPUS:85030685847

SN - 0960-8524

VL - 247

SP - 844

EP - 850

JO - Bioresource Technology

JF - Bioresource Technology

ER -

An innovative biochar-amended substrate vertical flow constructed wetland for low C/N wastewater treatment: Impact of influent strengths

Abstract

UN SDGs

Keywords

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