如何评估化学氧化效率。
How to assess chemical oxidation efficiency.
作者信息
Bertanza G, Pedrazzani R
机构信息
Department of Civil Engineering, University of Brescia, via Branze 38, Brescia, 25123, Italy.
出版信息
Water Sci Technol. 2004;49(4):1-6.
In this work, a real wastewater (deriving from the chemical-pharmaceutical field) was treated by means of H2O2/UV process under different conditions in a pilot-scale plant. Several methods were used in order to assess the oxidation efficiency and to understand the main reaction features. It was shown that non-conventional COD measurement (with a 75 degrees C digestion of the sample) is helpful for understanding reaction mechanisms, when integrated with TOC and COD analyses and GC-MS determinations. For the biodegradability study, beside BOD (5 and 20 days) measurements, OUR and AUR tests provide additional information especially when wastewater is tested by taking the activated sludge from the treatment plant which should really be fed with it. Finally, dehydrogenase activity measurements can show the presence of complex organic matter, which may be degraded only by an acclimated biomass.
在本研究中，采用中试规模装置，通过H2O2/UV工艺在不同条件下处理实际废水（来源于化学制药领域）。为评估氧化效率并了解主要反应特征，采用了多种方法。结果表明，非常规COD测量（75℃消解样品）与TOC、COD分析及GC-MS测定相结合时，有助于理解反应机理。对于生物降解性研究，除了测量BOD（5天和20天）外，OUR和AUR测试可提供更多信息，特别是当使用处理厂的活性污泥对废水进行测试时，活性污泥应真正以该废水为食。最后，脱氢酶活性测量可显示复杂有机物的存在，这些有机物可能只有经过驯化的生物质才能降解。
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