T. Mulai, J.E. Kumar, W. Kharmawphlang, M.K. Sahoo
{"title":"利用基于亚铁和黄铁矿的芬顿和光芬顿工艺去除艳橙 R 的 COD","authors":"T. Mulai, J.E. Kumar, W. Kharmawphlang, M.K. Sahoo","doi":"10.1016/j.jwpe.2025.107445","DOIUrl":null,"url":null,"abstract":"<div><div>Synthetic dyes, such as Brilliant Orange R (BO R) which are widely used in textile industries, represent a significant environmental challenge because of their toxicity, persistence, and resistance to conventional treatment methods. So, development of cost effective technologies is of paramount importance. This study investigates the use of nano-ferrite (n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span>) and pyrite <span><math><mfenced><msub><mi>FeS</mi><mn>2</mn></msub></mfenced></math></span> catalysts in the Fenton process for reducing COD of BO R, a representative organic pollutant. The catalysts were synthesised by standard procedures and characterized by various techniques such as TEM, FT-IR, PXRD, EDX, XPS, VSM, and Raman spectroscopy. The COD removal was studied in all the systems with and without oxidants, including hydrogen peroxide (HP), sodium perborate (SPB), and tert-butyl hydroperoxide (TBHP). In HP systems, COD removal starts only after 90 min and, thereafter, possesses identical COD elimination efficiency (<span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span>) (96.0 and 93.4 %, respectively, for ferrite and pyrite). While SPB completely inhibits <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> in both catalyst systems, TBHP does so only with pyrite. Nevertheless, TBHP displays a moderate <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> (75.5 %) with n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span>. The rate and magnitude of <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> increases in exposure to UV light. The <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> in different systems, with or without irradiation of UV light, follow the order: n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>/</mo><mi>HP</mi></math></span> > <span><math><msub><mi>FeS</mi><mn>2</mn></msub><mo>/</mo><mi>HP</mi></math></span> > n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span> > <span><math><msub><mi>FeS</mi><mn>2</mn></msub></math></span>. Further, COD elimination with and without UV irradiation follows Behnajady-Modirshahla-Ghanbery, and first-order kinetic models, respectively. Inorganic anions (<span><math><msup><mi>Cl</mi><mo>−</mo></msup></math></span>, <span><math><msup><mi>F</mi><mo>−</mo></msup></math></span>, <span><math><msup><mi>Br</mi><mo>−</mo></msup><mo>,</mo></math></span> <span><math><msubsup><mi>NO</mi><mn>3</mn><mo>−</mo></msubsup></math></span>, and <span><math><msubsup><mi>SO</mi><mn>4</mn><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></math></span>) inhibit <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> more in magnitude than decolorization. Nevertheless, the effect of anions on <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> is concentration dependent.</div></div>","PeriodicalId":17528,"journal":{"name":"Journal of water process engineering","volume":"72 ","pages":"Article 107445"},"PeriodicalIF":6.7000,"publicationDate":"2025-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"COD removal of Brilliant Orange R using ferrite and pyrite based Fenton and photo-Fenton processes\",\"authors\":\"T. Mulai, J.E. Kumar, W. Kharmawphlang, M.K. Sahoo\",\"doi\":\"10.1016/j.jwpe.2025.107445\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Synthetic dyes, such as Brilliant Orange R (BO R) which are widely used in textile industries, represent a significant environmental challenge because of their toxicity, persistence, and resistance to conventional treatment methods. So, development of cost effective technologies is of paramount importance. This study investigates the use of nano-ferrite (n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span>) and pyrite <span><math><mfenced><msub><mi>FeS</mi><mn>2</mn></msub></mfenced></math></span> catalysts in the Fenton process for reducing COD of BO R, a representative organic pollutant. The catalysts were synthesised by standard procedures and characterized by various techniques such as TEM, FT-IR, PXRD, EDX, XPS, VSM, and Raman spectroscopy. The COD removal was studied in all the systems with and without oxidants, including hydrogen peroxide (HP), sodium perborate (SPB), and tert-butyl hydroperoxide (TBHP). In HP systems, COD removal starts only after 90 min and, thereafter, possesses identical COD elimination efficiency (<span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span>) (96.0 and 93.4 %, respectively, for ferrite and pyrite). While SPB completely inhibits <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> in both catalyst systems, TBHP does so only with pyrite. Nevertheless, TBHP displays a moderate <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> (75.5 %) with n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span>. The rate and magnitude of <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> increases in exposure to UV light. The <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> in different systems, with or without irradiation of UV light, follow the order: n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub><mo>/</mo><mi>HP</mi></math></span> > <span><math><msub><mi>FeS</mi><mn>2</mn></msub><mo>/</mo><mi>HP</mi></math></span> > n-<span><math><msub><mi>Fe</mi><mn>2</mn></msub><msub><mi>O</mi><mn>3</mn></msub></math></span> > <span><math><msub><mi>FeS</mi><mn>2</mn></msub></math></span>. Further, COD elimination with and without UV irradiation follows Behnajady-Modirshahla-Ghanbery, and first-order kinetic models, respectively. Inorganic anions (<span><math><msup><mi>Cl</mi><mo>−</mo></msup></math></span>, <span><math><msup><mi>F</mi><mo>−</mo></msup></math></span>, <span><math><msup><mi>Br</mi><mo>−</mo></msup><mo>,</mo></math></span> <span><math><msubsup><mi>NO</mi><mn>3</mn><mo>−</mo></msubsup></math></span>, and <span><math><msubsup><mi>SO</mi><mn>4</mn><mrow><mn>2</mn><mo>−</mo></mrow></msubsup></math></span>) inhibit <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> more in magnitude than decolorization. Nevertheless, the effect of anions on <span><math><msub><mi>COD</mi><mi>eff</mi></msub></math></span> is concentration dependent.</div></div>\",\"PeriodicalId\":17528,\"journal\":{\"name\":\"Journal of water process engineering\",\"volume\":\"72 \",\"pages\":\"Article 107445\"},\"PeriodicalIF\":6.7000,\"publicationDate\":\"2025-03-15\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of water process engineering\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2214714425005173\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, CHEMICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of water process engineering","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2214714425005173","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, CHEMICAL","Score":null,"Total":0}
COD removal of Brilliant Orange R using ferrite and pyrite based Fenton and photo-Fenton processes
Synthetic dyes, such as Brilliant Orange R (BO R) which are widely used in textile industries, represent a significant environmental challenge because of their toxicity, persistence, and resistance to conventional treatment methods. So, development of cost effective technologies is of paramount importance. This study investigates the use of nano-ferrite (n-) and pyrite catalysts in the Fenton process for reducing COD of BO R, a representative organic pollutant. The catalysts were synthesised by standard procedures and characterized by various techniques such as TEM, FT-IR, PXRD, EDX, XPS, VSM, and Raman spectroscopy. The COD removal was studied in all the systems with and without oxidants, including hydrogen peroxide (HP), sodium perborate (SPB), and tert-butyl hydroperoxide (TBHP). In HP systems, COD removal starts only after 90 min and, thereafter, possesses identical COD elimination efficiency () (96.0 and 93.4 %, respectively, for ferrite and pyrite). While SPB completely inhibits in both catalyst systems, TBHP does so only with pyrite. Nevertheless, TBHP displays a moderate (75.5 %) with n-. The rate and magnitude of increases in exposure to UV light. The in different systems, with or without irradiation of UV light, follow the order: n- > > n- > . Further, COD elimination with and without UV irradiation follows Behnajady-Modirshahla-Ghanbery, and first-order kinetic models, respectively. Inorganic anions (, , , and ) inhibit more in magnitude than decolorization. Nevertheless, the effect of anions on is concentration dependent.
期刊介绍:
The Journal of Water Process Engineering aims to publish refereed, high-quality research papers with significant novelty and impact in all areas of the engineering of water and wastewater processing . Papers on advanced and novel treatment processes and technologies are particularly welcome. The Journal considers papers in areas such as nanotechnology and biotechnology applications in water, novel oxidation and separation processes, membrane processes (except those for desalination) , catalytic processes for the removal of water contaminants, sustainable processes, water reuse and recycling, water use and wastewater minimization, integrated/hybrid technology, process modeling of water treatment and novel treatment processes. Submissions on the subject of adsorbents, including standard measurements of adsorption kinetics and equilibrium will only be considered if there is a genuine case for novelty and contribution, for example highly novel, sustainable adsorbents and their use: papers on activated carbon-type materials derived from natural matter, or surfactant-modified clays and related minerals, would not fulfil this criterion. The Journal particularly welcomes contributions involving environmentally, economically and socially sustainable technology for water treatment, including those which are energy-efficient, with minimal or no chemical consumption, and capable of water recycling and reuse that minimizes the direct disposal of wastewater to the aquatic environment. Papers that describe novel ideas for solving issues related to water quality and availability are also welcome, as are those that show the transfer of techniques from other disciplines. The Journal will consider papers dealing with processes for various water matrices including drinking water (except desalination), domestic, urban and industrial wastewaters, in addition to their residues. It is expected that the journal will be of particular relevance to chemical and process engineers working in the field. The Journal welcomes Full Text papers, Short Communications, State-of-the-Art Reviews and Letters to Editors and Case Studies