On the Properties of the Waste from a Laboratory

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  • 学生実験中に排出される廃水の性質について
  • ガクセイ ジッケンチュウ ニ ハイシュツサレル ハイスイ ノ セイシツ ニ ツ
  • 〓

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Abstract

The pH value, volume, COD and transparency of the waste from a chemical laboratory for the use of students were examined. Obtained results were as follows ; 1. It was found that the waste was generally acidic, and the lowest pH value was 4.1. 2. The total volume of waste was estimated at about 0.6 tons. 3. It was shown that the maximum value of COD was 14 ppm. 4. The lowest value of transparency (T% at 660 mμ, light path 1 cm) was about 97%. The correlation between obtained values was discussed.

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KJ00000066077

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