Advanced oxidation processes for treating raw leachate: an experimental study

IF 1 Q4 ENGINEERING, ENVIRONMENTAL Journal of Environmental Engineering and Science Pub Date : 2022-08-31 DOI:10.1680/jenes.22.00016
Ruqaya Al-Syabi, A. Izady, M. Baawain, A. Al-Mamun, Mingjie Chen
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Abstract

Management of municipal solid waste leachate has become an urgent environmental problem in many countries due to the high growth of population and consumption trends. Advanced oxidation processes (AOPs) are efficient methods to treat leachate because of their high ability to reduce unpleasant parameters. Although the simultaneous application of different AOPs methods is more effective than a single process, the simultaneous application of AOPs for the treatment of municipal solid waste leachate has received little attention. To fill this knowledge gap, this study presents the simultaneous application of AOPs methods to treat municipal solid waste leachate. The efficiency of AOPs was studied in terms of organic compounds such as chemical oxygen demand (COD) and total organic carbon (TOC). Leachate samples were collected from the Barka landfill, which is located in the northeast of Oman. Four combinations of applied AOPs methods (e.g. ozone (O3), hydrogen peroxide (H2O2), and ultraviolet (UV)) in this study resulted in the order of H2O2/O3/UV > H2O2/O3 > O3/UV3 > H2O2/UV according to the COD removal efficiency. Combining these AOPs methods resulted in about 1.5 times increase in COD removal (56.62%) and 1.9 times increase in TOC removal (39.34%) compared to the individual applications.
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处理原渗滤液的高级氧化工艺:实验研究
由于人口的高速增长和消费趋势,城市固体废物渗滤液的管理已成为许多国家迫切需要解决的环境问题。高级氧化工艺(AOPs)是处理渗滤液的有效方法,因为它具有降低不良参数的高能力。虽然不同AOPs方法同时应用比单一工艺更有效,但同时应用AOPs处理城市生活垃圾渗滤液的研究很少受到关注。为了填补这一知识空白,本研究提出了同时应用AOPs方法处理城市生活垃圾渗滤液。以化学需氧量(COD)和总有机碳(TOC)为指标,研究了AOPs的效率。渗滤液样本是从位于阿曼东北部的巴尔卡垃圾填埋场收集的。本研究采用臭氧(O3)、过氧化氢(H2O2)、紫外线(UV)四种AOPs方法组合,根据COD去除率排序为H2O2/O3/UV > H2O2/O3 > O3/UV3 > H2O2/UV。综合使用这些AOPs方法,COD去除率提高1.5倍(56.62%),TOC去除率提高1.9倍(39.34%)。
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来源期刊
CiteScore
1.60
自引率
0.00%
发文量
20
审稿时长
12 months
期刊介绍: Journal of Environmental Engineering and Science is an international, peer-reviewed publication providing a forum for the dissemination of environmental research, encouraging interdisciplinary research collaboration to address environmental problems. It addresses all aspects of environmental engineering and applied environmental science, with the exception of noise, radiation and light.
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