Estrogen removal from treated municipal effluent in small-scale constructed wetland with different depth

Hai Liang Song; Kazunori Nakano; Takashi Taniguchi; Munehiro Nomura; Osamu Nishimura

doi:10.1016/j.biortech.2009.01.045

Estrogen removal from treated municipal effluent in small-scale constructed wetland with different depth

Hai Liang Song, Kazunori Nakano, Takashi Taniguchi, Munehiro Nomura, Osamu Nishimura

ENG - Civil and Environmental Engineering

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

100 Citations (Scopus)

Abstract

The presence of estrone (E1), 17 beta-estradiol (E2) and 17 alpha-ethynylestradiol (EE2) in sewage treatment work (STW) effluent pose a potential risk to aquatic ecosystem. The objectives of this study were to evaluate the effectiveness of vertical-flow wetland as polishing step of conventional wastewater treatment in the removal of estrogens and to examine the effect of sand depth. The highest removal efficiency of 67.8 ± 28.0%, 84.0 ± 15.4% and 75.3 ± 17.6% for E1, E2 and EE2, respectively, was achieved by the shallowest wetland among three constructed wetlands with different filter layer depth (i.e. 7.5, 30 and 60 cm). Together with the result that the performance of wetlands when operating in unsaturated condition was superior to that when operating in water-saturated condition, it is suggested that maintaining sufficient aerobic circumstance in constructed wetlands was important for estrogens removal. Core sampling indicated that the highest efficiency achieved in extremely shallow wetland might be due partly to the highest root density, besides the superior condition for penetration of oxygen. The adsorbed estrogens in sand accounted for less than 12% of the removed estrogens irrespective of the depth, indicating biotic processes play a major role in the estrogens removal.

Original language	English
Pages (from-to)	2945-2951
Number of pages	7
Journal	Bioresource Technology
Volume	100
Issue number	12
DOIs	https://doi.org/10.1016/j.biortech.2009.01.045
Publication status	Published - 2009 Jun

Keywords

Constructed wetland
Estrogen
Root length density
Treated municipal effluent
Vertical-flow

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.2009.01.045

Cite this

@article{a4014b4bf51b4c59bc667dfea8c9ef50,

title = "Estrogen removal from treated municipal effluent in small-scale constructed wetland with different depth",

abstract = "The presence of estrone (E1), 17 beta-estradiol (E2) and 17 alpha-ethynylestradiol (EE2) in sewage treatment work (STW) effluent pose a potential risk to aquatic ecosystem. The objectives of this study were to evaluate the effectiveness of vertical-flow wetland as polishing step of conventional wastewater treatment in the removal of estrogens and to examine the effect of sand depth. The highest removal efficiency of 67.8 ± 28.0%, 84.0 ± 15.4% and 75.3 ± 17.6% for E1, E2 and EE2, respectively, was achieved by the shallowest wetland among three constructed wetlands with different filter layer depth (i.e. 7.5, 30 and 60 cm). Together with the result that the performance of wetlands when operating in unsaturated condition was superior to that when operating in water-saturated condition, it is suggested that maintaining sufficient aerobic circumstance in constructed wetlands was important for estrogens removal. Core sampling indicated that the highest efficiency achieved in extremely shallow wetland might be due partly to the highest root density, besides the superior condition for penetration of oxygen. The adsorbed estrogens in sand accounted for less than 12% of the removed estrogens irrespective of the depth, indicating biotic processes play a major role in the estrogens removal.",

keywords = "Constructed wetland, Estrogen, Root length density, Treated municipal effluent, Vertical-flow",

author = "Song, {Hai Liang} and Kazunori Nakano and Takashi Taniguchi and Munehiro Nomura and Osamu Nishimura",

note = "Funding Information: This research was financially supported by a Grant-in-Aid for Encouragement of Young Scientists (A) (Grant No. 17681006) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan, and a Grant-in-Aid for Scientific Research (Grant No. 1907118) from the Japan Society for the Promotion of Science (JSPS). The first author is grateful to JSPS for the Postdoctoral Fellowship for Foreign Researchers (No. P07118). The insightful comments of two anonymous reviewers greatly improved an earlier draft of this paper.",

year = "2009",

month = jun,

doi = "10.1016/j.biortech.2009.01.045",

language = "English",

volume = "100",

pages = "2945--2951",

journal = "Agricultural Wastes",

issn = "0960-8524",

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}

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T1 - Estrogen removal from treated municipal effluent in small-scale constructed wetland with different depth

AU - Song, Hai Liang

AU - Nakano, Kazunori

AU - Taniguchi, Takashi

AU - Nomura, Munehiro

AU - Nishimura, Osamu

N1 - Funding Information: This research was financially supported by a Grant-in-Aid for Encouragement of Young Scientists (A) (Grant No. 17681006) from the Ministry of Education, Culture, Sports, Science, and Technology (MEXT), Japan, and a Grant-in-Aid for Scientific Research (Grant No. 1907118) from the Japan Society for the Promotion of Science (JSPS). The first author is grateful to JSPS for the Postdoctoral Fellowship for Foreign Researchers (No. P07118). The insightful comments of two anonymous reviewers greatly improved an earlier draft of this paper.

PY - 2009/6

Y1 - 2009/6

N2 - The presence of estrone (E1), 17 beta-estradiol (E2) and 17 alpha-ethynylestradiol (EE2) in sewage treatment work (STW) effluent pose a potential risk to aquatic ecosystem. The objectives of this study were to evaluate the effectiveness of vertical-flow wetland as polishing step of conventional wastewater treatment in the removal of estrogens and to examine the effect of sand depth. The highest removal efficiency of 67.8 ± 28.0%, 84.0 ± 15.4% and 75.3 ± 17.6% for E1, E2 and EE2, respectively, was achieved by the shallowest wetland among three constructed wetlands with different filter layer depth (i.e. 7.5, 30 and 60 cm). Together with the result that the performance of wetlands when operating in unsaturated condition was superior to that when operating in water-saturated condition, it is suggested that maintaining sufficient aerobic circumstance in constructed wetlands was important for estrogens removal. Core sampling indicated that the highest efficiency achieved in extremely shallow wetland might be due partly to the highest root density, besides the superior condition for penetration of oxygen. The adsorbed estrogens in sand accounted for less than 12% of the removed estrogens irrespective of the depth, indicating biotic processes play a major role in the estrogens removal.

AB - The presence of estrone (E1), 17 beta-estradiol (E2) and 17 alpha-ethynylestradiol (EE2) in sewage treatment work (STW) effluent pose a potential risk to aquatic ecosystem. The objectives of this study were to evaluate the effectiveness of vertical-flow wetland as polishing step of conventional wastewater treatment in the removal of estrogens and to examine the effect of sand depth. The highest removal efficiency of 67.8 ± 28.0%, 84.0 ± 15.4% and 75.3 ± 17.6% for E1, E2 and EE2, respectively, was achieved by the shallowest wetland among three constructed wetlands with different filter layer depth (i.e. 7.5, 30 and 60 cm). Together with the result that the performance of wetlands when operating in unsaturated condition was superior to that when operating in water-saturated condition, it is suggested that maintaining sufficient aerobic circumstance in constructed wetlands was important for estrogens removal. Core sampling indicated that the highest efficiency achieved in extremely shallow wetland might be due partly to the highest root density, besides the superior condition for penetration of oxygen. The adsorbed estrogens in sand accounted for less than 12% of the removed estrogens irrespective of the depth, indicating biotic processes play a major role in the estrogens removal.

KW - Constructed wetland

KW - Estrogen

KW - Root length density

KW - Treated municipal effluent

KW - Vertical-flow

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U2 - 10.1016/j.biortech.2009.01.045

DO - 10.1016/j.biortech.2009.01.045

M3 - Article

C2 - 19254839

AN - SCOPUS:62649166346

SN - 0960-8524

VL - 100

SP - 2945

EP - 2951

JO - Agricultural Wastes

JF - Agricultural Wastes

IS - 12

ER -

Estrogen removal from treated municipal effluent in small-scale constructed wetland with different depth

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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