Life cycle assessment of advanced oxidation processes for olive mill wastewater treatment
Life cycle assessment of advanced oxidation processes for olive mill wastewater treatment
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DOI：
10.1016/j.jclepro.2013.05.013
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发表时间：
2013-09-01
影响因子：
11.1
通讯作者：
Tsoutsos, Theocharis
中科院分区：
文献类型：
--
作者：
Chatzisymeon, Efthalia;Foteinis, Spyros;Tsoutsos, Theocharis
有效管理生物顽固性农工废水，如橄榄磨废水，是所有地中海国家关注的问题。然而，任何处理技术的适用性除了与其矿化和解毒效率密切相关外，还与其共同的环境影响密切相关。在这项工作中，使用生命周期评估方法评估了三种高级氧化工艺(AOPS)的环境足迹，即紫外光催化(UV/TiO2光催化)、湿式空气氧化(WAO)和电化学氧化(EO)在掺硼金刚石电极上用于OW处理。实验结果表明，在COD、TPH和色度的去除方面，EO和WAO都具有竞争性。EO被发现是一种更环保的技术，因为它产生的总体环境影响较低，包括向大气排放的二氧化碳。所有三个AOPS的环境影响表明，人类健康主要受到影响，其次是对资源枯竭的影响。总而言之，AOPS的环境可持续性与其能源需求密切相关，其对环境的总影响按以下顺序递减：UV/TiO2>；WAO>；EO。(C)2013爱思唯尔有限公司。保留所有权利。
The efficient management of biorecalcitrant agro-industrial effluents, such as olive mill wastewater (OMW), is a matter of concern along all Mediterranean countries. However, the applicability of any treatment technique is strongly related, apart from its mineralization and detoxification efficiency, to its joint environmental impacts. In this work, the life cycle assessment methodology was utilized to estimate the environmental footprint of three advanced oxidation processes (AOPs), namely UV heterogenous photocatalysis (UV/TiO2), wet air oxidation (WAO) and electrochemical oxidation (EO) over boron-doped diamond electrodes, for OMW treatment. It was observed that both EO and WAO can be competitive processes in terms of COD, TPh and color removal. EO was found to be a more environmentally friendly technique as it yields lower total environmental impacts, including CO2 emissions to atmosphere. The environmental impacts of all three AOPs show that human health is primarily affected followed by impacts onto resources depletion. All in all, it was found that the environmental sustainability of AOPs is strongly related to their energy requirements and that their total environmental impacts decline according to the following order: UV/TiO2 > WAO > EO. (C) 2013 Elsevier Ltd. All rights reserved.