Fenton氧化脱色法对工业金胺O染料的强化吸附

IF 0.5 4区工程技术 Q4 CHEMISTRY, APPLIED

Indian Journal of Chemical Technology Pub Date : 2023-01-01 DOI:10.56042/ijct.v30i5.5207

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引用次数: 0

摘要

本文研究了用高级氧化法(AOP)从模型溶液中Fenton降解工业金胺O染料。考察了初始pH、亚铁离子和H2O2浓度对料液脱色程度的影响。在pH值为3.0时，脱色率最高可达91.8%。在一定ph条件下，研究了不同浓度的Fe2+和H2O2对化学需氧量(COD)降低率的影响。48 mL/L H2O2和6 g/L Fe2+的组合可使COD降低84.9%。气相色谱-质谱分析表明，在Fenton AOP前，模型溶液中存在有毒的不可生物降解的金胺O染料，在Fenton AOP 30 min后，金胺O染料被降解为包括CO2在内的几种化合物。FTIR分析的光谱输出证实了芬顿过程中的分子重排和随后的降解。

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Enhanced sequestration of commercial Auramine O dye in a Fenton oxidative decolourization process

The present work investigates the Fenton degradation of commercial Auramine O dye from a model solution through advanced oxidation process (AOP). The effects of initial pH, ferrous ion and H2O2 concentration have been evaluated with respect to the extent of decolourization of the feed solution. A maximum decolourization to the tune of 91.8% is accomplished at a pH of 3.0. The effect of various doses of Fe2+ and H2O2 on the percentage reduction in chemical oxygen demand (COD) is investigated at a constant pH. 84.9% reduction of COD is obtained using a combination of 48 mL/L H2O2 and 6 g/L Fe2+. The gas chromatography-mass spectrometry analysis reveals the presence of toxic non-biodegradable Auramine O dye in the model solution before the Fenton AOP, which is degraded into several compounds including CO2 after 30 min of Fenton AOP. The spectral output from FTIR analysis corroborates the molecular rearrangement during Fenton process with consequent degradation.

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来源期刊

Indian Journal of Chemical Technology 工程技术-工程：化工

CiteScore

0.90

自引率

20.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Indian Journal of Chemical Technology has established itself as the leading journal in the exciting field of chemical engineering and technology. It is intended for rapid communication of knowledge and experience to engineers and scientists working in the area of research development or practical application of chemical technology. This bimonthly journal includes novel and original research findings as well as reviews in the areas related to – Chemical Engineering, Catalysis, Leather Processing, Polymerization, Membrane Separation, Pharmaceuticals and Drugs, Agrochemicals, Reaction Engineering, Biochemical Engineering, Petroleum Technology, Corrosion & Metallurgy and Applied Chemistry.