Effective pharmaceutical wastewater degradation by Fenton oxidation with zero-valent iron

IF 21.1 1区化学 Q1 CHEMISTRY, PHYSICAL Applied Catalysis B: Environmental Pub Date : 2013-06-05 DOI:10.1016/j.apcatb.2013.01.036

Y. Segura, F. Martínez, J.A. Melero

引用次数: 134

Abstract

The pre-treatment of a pharmaceutical wastewater (PWW) by Fenton oxidation with zero-valent iron (ZVI) and hydrogen peroxide was investigated to improve the degradation of the complex-mixture of organic compounds present in the wastewater. The influence of different crucial parameters such as the initial hydrogen peroxide concentration, the ZVI concentration and the capacity of the ZVI/H₂O₂ system to treat different organic loading have been evaluated. The optimal conditions for degradation led to TOC reductions of up to 80% in only 1 h of treatment. This degree of organic mineralization was reached by using moderate loadings of ZVI and hydrogen peroxide (ZVI/TOC weight and H₂O₂/TOC molar ratios of 12 and 3.2, respectively). Moreover, the use of waste-metallic iron shavings in terms of TOC removal compared to commercial ZVI powder may be a promising and cheaper development.

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零价铁Fenton氧化法有效降解制药废水

研究了零价铁(ZVI)和过氧化氢Fenton氧化预处理某制药废水(PWW)，以提高废水中有机物络合物的降解能力。考察了过氧化氢初始浓度、ZVI浓度、ZVI/H2O2体系处理不同有机负载能力等关键参数的影响。在最佳降解条件下，仅1小时的处理就可使TOC降低80%。通过适度的ZVI和过氧化氢负载(ZVI/TOC质量和H2O2/TOC摩尔比分别为12和3.2)，达到了这种程度的有机矿化。此外，与商业ZVI粉末相比，废金属铁刨花在TOC去除方面的使用可能是一个有前途且更便宜的发展。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Applied Catalysis B: Environmental 环境科学-工程：化工

CiteScore

38.60

自引率

6.30%

发文量

1117

审稿时长

24 days

期刊介绍： Applied Catalysis B: Environment and Energy (formerly Applied Catalysis B: Environmental) is a journal that focuses on the transition towards cleaner and more sustainable energy sources. The journal's publications cover a wide range of topics, including: 1.Catalytic elimination of environmental pollutants such as nitrogen oxides, carbon monoxide, sulfur compounds, chlorinated and other organic compounds, and soot emitted from stationary or mobile sources. 2.Basic understanding of catalysts used in environmental pollution abatement, particularly in industrial processes. 3.All aspects of preparation, characterization, activation, deactivation, and regeneration of novel and commercially applicable environmental catalysts. 4.New catalytic routes and processes for the production of clean energy, such as hydrogen generation via catalytic fuel processing, and new catalysts and electrocatalysts for fuel cells. 5.Catalytic reactions that convert wastes into useful products. 6.Clean manufacturing techniques that replace toxic chemicals with environmentally friendly catalysts. 7.Scientific aspects of photocatalytic processes and a basic understanding of photocatalysts as applied to environmental problems. 8.New catalytic combustion technologies and catalysts. 9.New catalytic non-enzymatic transformations of biomass components. The journal is abstracted and indexed in API Abstracts, Research Alert, Chemical Abstracts, Web of Science, Theoretical Chemical Engineering Abstracts, Engineering, Technology & Applied Sciences, and others.