ABSTRACT

Advanced oxidation processes have gained colossal attention owing to the prospect of accessible mineralization, but by-product formation and its toxicity evaluation are still inconclusive. The present study demonstrated the performance of electrochemical oxidation process supported with graphite electrodes for the oxidation of phenol from modulated coke oven wastewater. The results suggested that the hydrogen peroxide along with the in-situ synthesized oxidizing agents has the ability to increase the phenol mineralization 1.5 times and by-product toxicity potential on microalgae, Scenedesmus sp. CBIIT(ISM) also revealed that chlorophyll-a synthesis has increased after the electro-oxidation process in coke oven wastewater. The experimental results for phenol mineralization and by-product formation were validated using a mass spectrophotometer.

摘要

由于可接近的矿化前景，高级氧化工艺受到了广泛关注，但副产物的形成及其毒性评估仍无定论。本研究证明了石墨电极支持的电化学氧化工艺在氧化调制焦炉废水中的苯酚方面的性能。结果表明，过氧化氢和原位合成的氧化剂对微藻栅栏藻（Scenedesmus sp. CBIIT(ISM) 还发现，在焦炉废水中经过电氧化过程后叶绿素-a 的合成有所增加。使用质谱仪验证了苯酚矿化和副产物形成的实验结果。