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Liu Y.,Beijing Lucency Environmental Technology Co. | Sheng F.,Beijing Lucency Environmental Technology Co. | Chen W.,Beijing Lucency Environmental Technology Co. | Chen X.,Beijing Lucency Environmental Technology Co. | And 3 more authors.
Chinese Journal of Environmental Engineering | Year: 2015

The indicative role of UV254 in coal gasification wastewater was analyzed, on account of the advantages of UV254 such as simple operation, fast measurement, low costs and excellent data reappearance, etc. The results showed that a poor correlation between the value of COD and UV254 was observed in each reactor in real coal gasification wastewater treatment process. The highest correlation was 0.8328 in that experiment. It is improper that UV254 substitutes for COD as a daily monitoring indicator because of the complicate composition of coal gasification wastewater. However, in the experimental study of specific wastewater treatment, the correlation between UV254 and COD was up to 0.9826 and 0.9812 in ozonation advanced treatment of coal gasification wastewater and it was 0.9879 along real coal gasification wastewater treatment process. That results showed that an excellent correlation between COD and UV254 could be obtained. It concluded that UV254 could be applied as the indicative index to predict COD removal effect, which could save time and reduce experimental costs to a great extent. ©, 2015, Science Press. All right reserved. Source

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