Acute toxicity assessment of TFT-LCD wastewater using Daphnia similis and Cyprinus carpio

Ya Ching Lee; Liang Ming Whang; Minh Huy Ngo; Te Hao Chen; Hai Hsuan Cheng

doi:10.1016/j.psep.2016.03.003

Acute toxicity assessment of TFT-LCD wastewater using Daphnia similis and Cyprinus carpio

Ya Ching Lee, Liang Ming Whang, Minh Huy Ngo, Te Hao Chen, Hai Hsuan Cheng

環境工程學系

研究成果: Article › 同行評審

15 引文斯高帕斯（Scopus）

摘要

Biotoxicity tests are considered methods to assess toxicity of substances or complex mixtures of industrial wastewater effluents. In this study, Daphnia similis and Cyprinus carpio were used to examine the acute toxicity of thin-film transistor liquid crystal display (TFT-LCD) wastewater effluents in Taiwan. Among examined effluents, 67% were found to be toxic to D. similis and 27% were toxic to C. carpio. The biotoxicity of TFT-LCD wastewater effluents might be due to the presence of tetra-methyl ammonium hydroxide (TMAH), since 48-h lethal concentration 50 (LC₅₀) of TMAH to D. similis was found only 0.75 mg/L. The acute toxicity of NH₄ ⁺-N to D. similis varied with 48-h LC₅₀ values of 18.5 mg/L at pH 7.0 and 155 mg/L at pH 6.5. The obtained results of this study indicated that NO₃ ⁻-N, SO₄ ²⁻, Cl⁻ and heavy metals were not the major concerns in TFT-LCD wastewater effluents regarding acute toxicity.

原文	English
頁（從 - 到）	499-506
頁數	8
期刊	Process Safety and Environmental Protection
卷	104
DOIs	https://doi.org/10.1016/j.psep.2016.03.003
出版狀態	Published - 2016 11月 1

All Science Journal Classification (ASJC) codes

環境工程
環境化學
一般化學工程
安全、風險、可靠性和品質

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10.1016/j.psep.2016.03.003

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title = "Acute toxicity assessment of TFT-LCD wastewater using Daphnia similis and Cyprinus carpio",

abstract = "Biotoxicity tests are considered methods to assess toxicity of substances or complex mixtures of industrial wastewater effluents. In this study, Daphnia similis and Cyprinus carpio were used to examine the acute toxicity of thin-film transistor liquid crystal display (TFT-LCD) wastewater effluents in Taiwan. Among examined effluents, 67% were found to be toxic to D. similis and 27% were toxic to C. carpio. The biotoxicity of TFT-LCD wastewater effluents might be due to the presence of tetra-methyl ammonium hydroxide (TMAH), since 48-h lethal concentration 50 (LC50) of TMAH to D. similis was found only 0.75 mg/L. The acute toxicity of NH4 +-N to D. similis varied with 48-h LC50 values of 18.5 mg/L at pH 7.0 and 155 mg/L at pH 6.5. The obtained results of this study indicated that NO3 −-N, SO4 2−, Cl− and heavy metals were not the major concerns in TFT-LCD wastewater effluents regarding acute toxicity.",

author = "Lee, {Ya Ching} and Whang, {Liang Ming} and Ngo, {Minh Huy} and Chen, {Te Hao} and Cheng, {Hai Hsuan}",

note = "Funding Information: The authors would like to acknowledge the financial support from the Ministry of Science and Technology of Taiwan under Grant NSC 102-2221-E-006-007-MY3 , the Ministry of Education of Taiwan under grant for the Top University Project to the National Cheng Kung University, and partially financial support from the Innolux Corporation . Publisher Copyright: {\textcopyright} 2016 Institution of Chemical Engineers",

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AU - Lee, Ya Ching

AU - Whang, Liang Ming

AU - Ngo, Minh Huy

AU - Chen, Te Hao

AU - Cheng, Hai Hsuan

N1 - Funding Information: The authors would like to acknowledge the financial support from the Ministry of Science and Technology of Taiwan under Grant NSC 102-2221-E-006-007-MY3 , the Ministry of Education of Taiwan under grant for the Top University Project to the National Cheng Kung University, and partially financial support from the Innolux Corporation . Publisher Copyright: © 2016 Institution of Chemical Engineers

PY - 2016/11/1

Y1 - 2016/11/1

N2 - Biotoxicity tests are considered methods to assess toxicity of substances or complex mixtures of industrial wastewater effluents. In this study, Daphnia similis and Cyprinus carpio were used to examine the acute toxicity of thin-film transistor liquid crystal display (TFT-LCD) wastewater effluents in Taiwan. Among examined effluents, 67% were found to be toxic to D. similis and 27% were toxic to C. carpio. The biotoxicity of TFT-LCD wastewater effluents might be due to the presence of tetra-methyl ammonium hydroxide (TMAH), since 48-h lethal concentration 50 (LC50) of TMAH to D. similis was found only 0.75 mg/L. The acute toxicity of NH4 +-N to D. similis varied with 48-h LC50 values of 18.5 mg/L at pH 7.0 and 155 mg/L at pH 6.5. The obtained results of this study indicated that NO3 −-N, SO4 2−, Cl− and heavy metals were not the major concerns in TFT-LCD wastewater effluents regarding acute toxicity.

AB - Biotoxicity tests are considered methods to assess toxicity of substances or complex mixtures of industrial wastewater effluents. In this study, Daphnia similis and Cyprinus carpio were used to examine the acute toxicity of thin-film transistor liquid crystal display (TFT-LCD) wastewater effluents in Taiwan. Among examined effluents, 67% were found to be toxic to D. similis and 27% were toxic to C. carpio. The biotoxicity of TFT-LCD wastewater effluents might be due to the presence of tetra-methyl ammonium hydroxide (TMAH), since 48-h lethal concentration 50 (LC50) of TMAH to D. similis was found only 0.75 mg/L. The acute toxicity of NH4 +-N to D. similis varied with 48-h LC50 values of 18.5 mg/L at pH 7.0 and 155 mg/L at pH 6.5. The obtained results of this study indicated that NO3 −-N, SO4 2−, Cl− and heavy metals were not the major concerns in TFT-LCD wastewater effluents regarding acute toxicity.

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Acute toxicity assessment of TFT-LCD wastewater using Daphnia similis and Cyprinus carpio

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