{"title":"响应面法优化模拟水中电絮凝除铬工艺","authors":"Amitesh, Devendra Dohare, Ghoshna Jyoti, Chhaya Rekhete, Savita Dubey, Abhinesh Kumar Prajapati","doi":"10.3103/S1063455X2305003X","DOIUrl":null,"url":null,"abstract":"<p>This work is an attempt to remove Cr(VI) from simulated wastewater using electrocoagulation (EC) process where stainless steel (SS) is used as a sacrificial electrode. The central composite design (CCD) of response surface methodology (RSM) is used to optimize different operating parameters including initial pH (pH<sub>i</sub>: 1.5–9.5), current density (<i>j</i>: 20.75–104.15 A/m<sup>2</sup>), electrode gap (<i>g</i>: 1.5–2.5 cm), and treatment time (<i>t</i>: 0–30 min), with respect to the removal of Cr(VI) from simulated water. The high coefficient of determination for Cr(VI) (<i>R</i><sup>2</sup> = 0.9922) was found by the analysis of variance (ANOVA) between the experimental data and the predicted data using a second-order regression model. The maximum Cr(VI) removal of 88.9% was achieved at optimum conditions (pH 3.5, <i>j</i> = 83.3 A/m<sup>2</sup>, <i>g</i> = 1.75 cm, and <i>t</i> = 24 min) as reflected by ANOVA analysis. A foam and residues analysis has also been incorporated.</p>","PeriodicalId":680,"journal":{"name":"Journal of Water Chemistry and Technology","volume":null,"pages":null},"PeriodicalIF":0.5000,"publicationDate":"2023-09-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Optimization of Electrocoagulation Process for the Removal of Chromium from Simulated Water Using the Response Surface Methodology\",\"authors\":\"Amitesh, Devendra Dohare, Ghoshna Jyoti, Chhaya Rekhete, Savita Dubey, Abhinesh Kumar Prajapati\",\"doi\":\"10.3103/S1063455X2305003X\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p>This work is an attempt to remove Cr(VI) from simulated wastewater using electrocoagulation (EC) process where stainless steel (SS) is used as a sacrificial electrode. The central composite design (CCD) of response surface methodology (RSM) is used to optimize different operating parameters including initial pH (pH<sub>i</sub>: 1.5–9.5), current density (<i>j</i>: 20.75–104.15 A/m<sup>2</sup>), electrode gap (<i>g</i>: 1.5–2.5 cm), and treatment time (<i>t</i>: 0–30 min), with respect to the removal of Cr(VI) from simulated water. The high coefficient of determination for Cr(VI) (<i>R</i><sup>2</sup> = 0.9922) was found by the analysis of variance (ANOVA) between the experimental data and the predicted data using a second-order regression model. The maximum Cr(VI) removal of 88.9% was achieved at optimum conditions (pH 3.5, <i>j</i> = 83.3 A/m<sup>2</sup>, <i>g</i> = 1.75 cm, and <i>t</i> = 24 min) as reflected by ANOVA analysis. A foam and residues analysis has also been incorporated.</p>\",\"PeriodicalId\":680,\"journal\":{\"name\":\"Journal of Water Chemistry and Technology\",\"volume\":null,\"pages\":null},\"PeriodicalIF\":0.5000,\"publicationDate\":\"2023-09-21\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Water Chemistry and Technology\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.3103/S1063455X2305003X\",\"RegionNum\":4,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q4\",\"JCRName\":\"CHEMISTRY, ANALYTICAL\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Water Chemistry and Technology","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.3103/S1063455X2305003X","RegionNum":4,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q4","JCRName":"CHEMISTRY, ANALYTICAL","Score":null,"Total":0}
Optimization of Electrocoagulation Process for the Removal of Chromium from Simulated Water Using the Response Surface Methodology
This work is an attempt to remove Cr(VI) from simulated wastewater using electrocoagulation (EC) process where stainless steel (SS) is used as a sacrificial electrode. The central composite design (CCD) of response surface methodology (RSM) is used to optimize different operating parameters including initial pH (pHi: 1.5–9.5), current density (j: 20.75–104.15 A/m2), electrode gap (g: 1.5–2.5 cm), and treatment time (t: 0–30 min), with respect to the removal of Cr(VI) from simulated water. The high coefficient of determination for Cr(VI) (R2 = 0.9922) was found by the analysis of variance (ANOVA) between the experimental data and the predicted data using a second-order regression model. The maximum Cr(VI) removal of 88.9% was achieved at optimum conditions (pH 3.5, j = 83.3 A/m2, g = 1.75 cm, and t = 24 min) as reflected by ANOVA analysis. A foam and residues analysis has also been incorporated.
期刊介绍：
Journal of Water Chemistry and Technology focuses on water and wastewater treatment, water pollution monitoring, water purification, and similar topics. The journal publishes original scientific theoretical and experimental articles in the following sections: new developments in the science of water; theoretical principles of water treatment and technology; physical chemistry of water treatment processes; analytical water chemistry; analysis of natural and waste waters; water treatment technology and demineralization of water; biological methods of water treatment; and also solicited critical reviews summarizing the latest findings. The journal welcomes manuscripts from all countries in the English or Ukrainian language. All manuscripts are peer-reviewed.
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