Processes impacting on benzene removal in vertical-flow constructed wetlands

Xianqiang Tang; Paul Emeka Eke; Miklas Scholz; Suiliang Huang

doi:10.1016/j.biortech.2008.05.038

Processes impacting on benzene removal in vertical-flow constructed wetlands

Xianqiang Tang, Paul Emeka Eke, Miklas Scholz, Suiliang Huang

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

53 Citations (Scopus)

Abstract

The overall aim of this research project was to reduce low molecular weight hydrocarbons such as benzene in produced wastewaters. Over 30 months of research was conducted to test the treatment performance in terms of benzene removal in vertical-flow constructed wetlands. Based on an influent concentration of 1 g L^-1 benzene, the results show mean benzene removal efficiencies between 88.71% and 89.77%, and 72.66% and 80.46% for indoor and outdoor constructed wetlands, respectively. A statistical analysis indicated that the five days at 20 °C N-allylthiourea biochemical oxygen demand (BOD₅), chemical oxygen demand (COD), nitrate-nitrogen (NO₃-N), dissolved oxygen (DO) and electric conductivity (EC) values of the effluent were positively correlated with the effluent benzene concentrations following the order COD > DO > EC > NO₃-N > BOD₅, and negatively correlated according to the order pH > redox potential (redox) > temperature (T) > turbidity. No strong relationships between benzene and the variables ortho-phosphate-phosphorus (PO₄^{3 -}) and ammonia-nitrogen (NH₄-N) were recorded.

Original language	English
Pages (from-to)	227-234
Number of pages	8
Journal	Bioresource Technology
Volume	100
Issue number	1
DOIs	https://doi.org/10.1016/j.biortech.2008.05.038
Publication status	Published - Jan 2009
Externally published	Yes

Keywords

Fertilizer
Petroleum
Regression analysis
Simulation
Water quality

ASJC Scopus subject areas

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

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

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10.1016/j.biortech.2008.05.038

Cite this

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title = "Processes impacting on benzene removal in vertical-flow constructed wetlands",

abstract = "The overall aim of this research project was to reduce low molecular weight hydrocarbons such as benzene in produced wastewaters. Over 30 months of research was conducted to test the treatment performance in terms of benzene removal in vertical-flow constructed wetlands. Based on an influent concentration of 1 g L-1 benzene, the results show mean benzene removal efficiencies between 88.71% and 89.77%, and 72.66% and 80.46% for indoor and outdoor constructed wetlands, respectively. A statistical analysis indicated that the five days at 20 °C N-allylthiourea biochemical oxygen demand (BOD5), chemical oxygen demand (COD), nitrate-nitrogen (NO3-N), dissolved oxygen (DO) and electric conductivity (EC) values of the effluent were positively correlated with the effluent benzene concentrations following the order COD > DO > EC > NO3-N > BOD5, and negatively correlated according to the order pH > redox potential (redox) > temperature (T) > turbidity. No strong relationships between benzene and the variables ortho-phosphate-phosphorus (PO43 -) and ammonia-nitrogen (NH4-N) were recorded.",

keywords = "Fertilizer, Petroleum, Regression analysis, Simulation, Water quality",

author = "Xianqiang Tang and Eke, {Paul Emeka} and Miklas Scholz and Suiliang Huang",

year = "2009",

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doi = "10.1016/j.biortech.2008.05.038",

language = "English",

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pages = "227--234",

journal = "Bioresource Technology",

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AU - Tang, Xianqiang

AU - Eke, Paul Emeka

AU - Scholz, Miklas

AU - Huang, Suiliang

PY - 2009/1

Y1 - 2009/1

N2 - The overall aim of this research project was to reduce low molecular weight hydrocarbons such as benzene in produced wastewaters. Over 30 months of research was conducted to test the treatment performance in terms of benzene removal in vertical-flow constructed wetlands. Based on an influent concentration of 1 g L-1 benzene, the results show mean benzene removal efficiencies between 88.71% and 89.77%, and 72.66% and 80.46% for indoor and outdoor constructed wetlands, respectively. A statistical analysis indicated that the five days at 20 °C N-allylthiourea biochemical oxygen demand (BOD5), chemical oxygen demand (COD), nitrate-nitrogen (NO3-N), dissolved oxygen (DO) and electric conductivity (EC) values of the effluent were positively correlated with the effluent benzene concentrations following the order COD > DO > EC > NO3-N > BOD5, and negatively correlated according to the order pH > redox potential (redox) > temperature (T) > turbidity. No strong relationships between benzene and the variables ortho-phosphate-phosphorus (PO43 -) and ammonia-nitrogen (NH4-N) were recorded.

AB - The overall aim of this research project was to reduce low molecular weight hydrocarbons such as benzene in produced wastewaters. Over 30 months of research was conducted to test the treatment performance in terms of benzene removal in vertical-flow constructed wetlands. Based on an influent concentration of 1 g L-1 benzene, the results show mean benzene removal efficiencies between 88.71% and 89.77%, and 72.66% and 80.46% for indoor and outdoor constructed wetlands, respectively. A statistical analysis indicated that the five days at 20 °C N-allylthiourea biochemical oxygen demand (BOD5), chemical oxygen demand (COD), nitrate-nitrogen (NO3-N), dissolved oxygen (DO) and electric conductivity (EC) values of the effluent were positively correlated with the effluent benzene concentrations following the order COD > DO > EC > NO3-N > BOD5, and negatively correlated according to the order pH > redox potential (redox) > temperature (T) > turbidity. No strong relationships between benzene and the variables ortho-phosphate-phosphorus (PO43 -) and ammonia-nitrogen (NH4-N) were recorded.

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KW - Petroleum

KW - Regression analysis

KW - Simulation

KW - Water quality

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Processes impacting on benzene removal in vertical-flow constructed wetlands

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

Access to Document

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