書誌事項
- タイトル別名
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- STUDY ON COD-ESTIMATION IN RIVER AND WASTE WATER BY PORTABLE ULTRAVIOLET ABSORBANCE PHOTOMETR
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説明
A simple, inexpensive and portable ultraviolet absorbance photometer was developed for COD estimation not only for river water but also for waste water. The performance of this instrument such as Zero-drift, 100%-drift were very good. Moreover good liner response with slope 1 was obtained between standard solution (potassium hydrogen phthalete) and absorbance at ultraviolet 254 nm. Using filtered various testing solutions with 0.45μm pore size (river water, leachate, food industry, animal farm and septic tank), we compared the absorbance from this instrument with conventional spectrophotometer. Finally, good linear relationship: UV254 (this instrument) =0.98×UV254 (spectrophotometer) -0.004 (R=0.99) was obtained. For the samples collected in the Japan, COD-Mn was estimated by following equation: COD-Mn (mg/l) =60×UV254+1.3, and for samples collected in Japan, the Philippines and Thailand, <BR>COD-Cr (mg/l) =169×UV254. However, poor results were obtained from testing solutions which contained high concentration of SS (>30mg/l ), colored or fluorescent brightening agent. Although, the weak points for these samples were overcome by a simple operation, such as dilution.
収録刊行物
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- 環境技術
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環境技術 32 (7), 575-581, 2003
環境技術学会
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詳細情報 詳細情報について
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- CRID
- 1390282679567230848
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- NII論文ID
- 130004173810
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- ISSN
- 18828590
- 03889459
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可