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標題: 水體中鉬離子之水蚤生物急毒性評估
The Daphnia magna biological acute toxicity assessment of molybdate ions in aqueous phase
作者: 葉慧茹
Yeh, Hui-Ju
關鍵字: 生物急毒性;Acute toxicity;水蚤;鉬;薄膜電晶體液晶顯示器;廢水;Daphnia magna;Molybdate;Thin-film-transistor liquid-crystal display;Wastewater
出版社: 環境工程學系所
引用: American Conference of Governmental Industrial Hygienists. (2004) Documentation of the TLV''s and BEI''s with Other World Wide Occupational Exposure Values. CD-ROM Cincinnati, OH 45240-1634. Anke, M., et al. (1971). "Absorption, excretion and distribution pattern of 99molybdenum after oral administration to lactating ruminants." Archiv fuer Tierernaehrung 21(6): 505-513. Davies, T. D., et al. (2005). "Acute molybdenum toxicity to rainbow trout and other fish." Journal of Environmental Engineering and Science 4(6): 481-485. Friberg, L., et al. (1986) "Handbook of the Toxicology of Metals. "2nd ed. Vols I, II.: Amsterdam: Elsevier Science Publishers .Vol.2, p.452 NIOSH. Molybdenum Material Safety Data Sheet, NIOSH (National Institute for Occupational Safety & Health). Regoli, L., et al. (2012). "The bioconcentration and bioaccumulation factors for molybdenum in the aquatic environment from natural environmental concentrations up to the toxicity boundary." Science of the Total Environment 435: 96-106. Reid, S. D. (2002). "Physiological impact of acute molybdenum exposure in juvenile kokanee salmon (Oncorhynchus nerka)." Comparative Biochemistry and Physiology C-Toxicology & Pharmacology 133(3): 355-367. USEPA. (1990). Summary of State and Federal Drinking Water Standards and Guidelines. Washington, Office of Water. USEPA (2002). Methods for Measuring the Acute Toxicity of Effluents and Receiving Waters to Freshwater and Marine Organisms 5th ed. Washington, Office of Water. Xiong, Y., et al. (2011). "Investigation on the removal of Mo(VI) from Mo-Re containing wastewater by chemically modified persimmon residua." Bioresource Technology 102(13): 6857-6862. 王思文 (2006). 我國tft-Lcd產業形成之研究. 政治經濟學研究所. 台南市, 國立成功大學. 碩士論文 行政院環境委員會環境檢驗所 (2011). "生物急毒性檢測方法-水蚤靜水式法." 行政院環境委員會環境檢驗所 (2012). "水中金屬及微量元素檢測方法—感應耦合電漿原子發射光譜法." 林珊如 (2002). 高科技產業氟化鈣污泥做為水泥生料之可行性研究. 產業安全與防災學程碩士班. 新竹市, 國立交通大學. 碩士論文 洪大偉 (2006). 鋁釹與鉬鈮雙層閘極結構在蝕刻機制之邊緣輪廓及傾斜角研究. 化學工程所. 台北市, 國立臺北科技大學. 碩士論文 財團法人中興工程顧問社 (2008). "高科技產業廢水水質特性分析及管制標準探討計畫." 行政院環境保護署. 高瑛紜 (2008). "液晶面板製造業廢棄物資源化現況評析." 財團法人綠色生產力基金會. 陳廷光, et al. (2004). "生物薄膜與逆滲透程序應用於TFT-LCD製程廢水處理與回收再利用." 工業污染防治 23卷(1期總號89): 頁125-141. 陳漢邦 (2006). 鋁/鉬/銅在酸性溶液之蝕刻研究. 化學工程學研究所. 台北市, 臺灣大學. 碩士論文 彭婉瑜 (2004). 以tristhiolatophosphine 為配位基的鉬金屬化合物之合成與鑑定. 化學系碩博士班. 台南市, 國立成功大學. 碩士論文 劉貞材 (2004). 生物指標於水質毒性監測之相關研究分析. 水利及海洋工程學系碩博士班. 台南市, 國立成功大學. 碩士論文 蘇登福 (2011). 化學沉澱法處理光電業含氟廢水之探討. 環境工程研究所碩士在職專班. 桃園縣, 國立中央大學. 碩士論文 温志雄 (2012). 光電業含鉬廢水處理之廢樹脂再生回收與資源化研究. 環境工程學系所, 中興大學. 碩士論文
本研究以氯化鈉執行參考毒性試驗,確保後續試驗的可信度,試驗結果所計算的平均LC50為3600 mg/L且其CV值為6.9 %並無超過50%,滿足環保署環境檢驗所中生物急毒性-水蚤靜水式法檢驗分析方法之品管要求;並以硫酸鈉、硫酸、氫氧化鈉、氫氧化氨及硫酸銨執行毒性試驗,結果顯示水蚤可容許最大導電度為10000 μs/cm、pH範圍6.80 ~ 10.00。最終以鉬酸鈉、鉬酸銨及氧化鉬進行六價鉬金屬鹽類之毒性探討,三種含鉬化合物溶於水中分別以MoO42-、Mo7O246-及H-O-MoO3-的形態存在,因此鉬元素濃度高低並不能直接造成水蚤的致死,而是端看鉬元素以哪種離子形態存在水中,其中毒性最高的為鉬酸銨(Mo7O246-),LC50為36.95 mg/L。

The molybdenum pollution has recently become an issue while thin-film-transistor liquid-crystal display (TFT-LCD) manufactures replaced molybdenum (Mo) with chromium in wafer producing. This research was conducted to explore the impact of Mo ion (+VI) in aquatic system via Daphnia acute toxicity evaluation.
A reliability of acute toxicity tests were initially performed using NaCl in accordance with the method established by Environmental Analysis Laboratory, Executive Yuan, R.O.C. The results exhibited the coefficient of dispersion (CV) of LC50 (3600 mg/L) is 6.9% that is less 50% set by the regulation.Toxic Water quality tolerance tests for Daphnia were performed with sodium sulfate (Na2SO4), sulfuric acid (H2SO4), sodium hydroxide (NaOH), ammonium hydroxide(NH4OH) and ammonium sulfate, the results showed that the upper limit of aquatic electric conductivity and suitable pH range for Daphnia’s survival are around 10000 μs/cm and pH of 6.80 – 10.00, respectively. Thereafter, LC50 values for sodium molybdate, ammonium molybdate and molybdenum trioxide were determined. The result showed that Mo7O246- exhibits the highest LC50 of 36.95 mg/L among the three molybdenum salts and the aquatic toxicity of molybdenum depends on different forms of molybdenum ions.
其他識別: U0005-2208201309562200
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