Seasonal Change and Removal of Estrogen in a Swine Wastewater Treatment Plant
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- REN Yong-Xiang
- Graduate School of Engineering, Tohoku University
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- NAKANO Kazunori
- Graduate School of Engineering, Tohoku University
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- OHORI Masato
- Graduate School of Engineering, Tohoku University
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- CHIBA Nobuo
- Graduate School of Engineering, Tohoku University
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- NOMURA Munehiro
- Graduate School of Engineering, Tohoku University
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- NISHIMURA Osamu
- Graduate School of Engineering, Tohoku University
Bibliographic Information
- Other Title
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- 養豚場排水処理施設におけるエストロゲンの季節変動と低減化処理の実態
- ヨウトンジョウ ハイスイ ショリ シセツ ニ オケル エストロゲン ノ キセツ ヘンドウ ト テイゲンカ ショリ ノ ジッタイ
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Abstract
An investigation on the seasonal change and removal of estrogen in a swine wastewater treatment plant was carried out from July 2004 to September 2005. Natural estrogens (estrone, estradiol and estriol) in raw wastewater showed similar seasonal changes and their peak values reached 162, 872, 4,480 ng · l-1, respectively, whereas equol showed a different trend in which the maximum concentration was markedly high at 43,300 ng · l-1. The results showed that approximately 93% of the total estrogenicity in raw wastewater was attributed to equol. The sequencing batch reactor (SBR) process of the swine wastewater treatment plant was efficient to remove selected estrogens for quantitative analysis as well as nitrogen and phosphate. Moer than 99% removal efficiencies for all selected estrogens and total estrogenicity were attained by the SBR process. The total estrogenicity that remained after the SBR process was, however, still higher than the predicted noneffective concentration level for fish (PNEC). It was found that a baffle channel located at the final stage of the treatment flow contributed to decreasing the estrogenicity to the PNEC level. Experimental results in the laboratory showed that filamentous algae inhabiting the bottom of the channel were responsible for the estrogenicity decrease observed in the baffle channel.
Journal
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- Journal of Japan Society on Water Environment
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Journal of Japan Society on Water Environment 31 (3), 155-161, 2008
Japan Society on Water Environment
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Details 詳細情報について
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- CRID
- 1390282680057740288
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- NII Article ID
- 10021158384
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- NII Book ID
- AN10372439
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- COI
- 1:CAS:528:DC%2BD1cXktlSgtLY%3D
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- ISSN
- 18813690
- 09168958
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- HANDLE
- 10097/50905
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- NDL BIB ID
- 9411860
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- Text Lang
- ja
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- Data Source
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- JaLC
- IRDB
- NDL
- Crossref
- CiNii Articles
- KAKEN
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- Abstract License Flag
- Disallowed