{"title":"微生物燃料电池废水除锌数学模型的建立","authors":"Lianxiu Li","doi":"10.1016/j.asej.2025.103558","DOIUrl":null,"url":null,"abstract":"<div><div>Zinc is used in the manufacture of various products such as alloys, paints, plastics, and rubber. A large amount of wastewater containing zinc is generated during the production of zinc metal. Wastewater containing zinc can cause several environmental issues. One of the methods for the removal and recovery of zinc from wastewater is the use of double-chamber microbial fuel cells. Mathematical modeling of a microbial fuel cell (MFC) as a useful tool is used for the evaluation of the effect of various operating parameters on its performance. Integration of bio-electrochemical kinetics with charge balance and mass transfer equations was performed in the developed model. The findings showed great agreement between the experimental results and the values obtained from the model in terms of zinc concentration as a function of time. In 24 hr, the zinc concentration was decreased from 1.82 mol/m<sup>3</sup> to approximately 0.2 mol/m<sup>3</sup>. It was also found that the pH increased from 7.4 to 8.2 with an increase in zinc concentration from 0 to 10 ppm. An increase in temperature can lead to an increase in the pH of the system. Furthermore, the potential decreased as temperature increased in the microbial fuel cells. The growth rate of biomass was lower at the beginning, but it was increased sharply between 9 hr and 24 hr. There was a considerable decrease in acetate concentration in the anode compartment where the rate of biomass growth was higher.</div></div>","PeriodicalId":48648,"journal":{"name":"Ain Shams Engineering Journal","volume":"16 10","pages":"Article 103558"},"PeriodicalIF":6.0000,"publicationDate":"2025-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Development of mathematical model for the prediction of zinc removal from a wastewater in microbial fuel cell\",\"authors\":\"Lianxiu Li\",\"doi\":\"10.1016/j.asej.2025.103558\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><div>Zinc is used in the manufacture of various products such as alloys, paints, plastics, and rubber. A large amount of wastewater containing zinc is generated during the production of zinc metal. Wastewater containing zinc can cause several environmental issues. One of the methods for the removal and recovery of zinc from wastewater is the use of double-chamber microbial fuel cells. Mathematical modeling of a microbial fuel cell (MFC) as a useful tool is used for the evaluation of the effect of various operating parameters on its performance. Integration of bio-electrochemical kinetics with charge balance and mass transfer equations was performed in the developed model. The findings showed great agreement between the experimental results and the values obtained from the model in terms of zinc concentration as a function of time. In 24 hr, the zinc concentration was decreased from 1.82 mol/m<sup>3</sup> to approximately 0.2 mol/m<sup>3</sup>. It was also found that the pH increased from 7.4 to 8.2 with an increase in zinc concentration from 0 to 10 ppm. An increase in temperature can lead to an increase in the pH of the system. Furthermore, the potential decreased as temperature increased in the microbial fuel cells. The growth rate of biomass was lower at the beginning, but it was increased sharply between 9 hr and 24 hr. There was a considerable decrease in acetate concentration in the anode compartment where the rate of biomass growth was higher.</div></div>\",\"PeriodicalId\":48648,\"journal\":{\"name\":\"Ain Shams Engineering Journal\",\"volume\":\"16 10\",\"pages\":\"Article 103558\"},\"PeriodicalIF\":6.0000,\"publicationDate\":\"2025-06-27\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Ain Shams Engineering Journal\",\"FirstCategoryId\":\"5\",\"ListUrlMain\":\"https://www.sciencedirect.com/science/article/pii/S2090447925002990\",\"RegionNum\":2,\"RegionCategory\":\"工程技术\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q1\",\"JCRName\":\"ENGINEERING, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Ain Shams Engineering Journal","FirstCategoryId":"5","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S2090447925002990","RegionNum":2,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q1","JCRName":"ENGINEERING, MULTIDISCIPLINARY","Score":null,"Total":0}
Development of mathematical model for the prediction of zinc removal from a wastewater in microbial fuel cell
Zinc is used in the manufacture of various products such as alloys, paints, plastics, and rubber. A large amount of wastewater containing zinc is generated during the production of zinc metal. Wastewater containing zinc can cause several environmental issues. One of the methods for the removal and recovery of zinc from wastewater is the use of double-chamber microbial fuel cells. Mathematical modeling of a microbial fuel cell (MFC) as a useful tool is used for the evaluation of the effect of various operating parameters on its performance. Integration of bio-electrochemical kinetics with charge balance and mass transfer equations was performed in the developed model. The findings showed great agreement between the experimental results and the values obtained from the model in terms of zinc concentration as a function of time. In 24 hr, the zinc concentration was decreased from 1.82 mol/m3 to approximately 0.2 mol/m3. It was also found that the pH increased from 7.4 to 8.2 with an increase in zinc concentration from 0 to 10 ppm. An increase in temperature can lead to an increase in the pH of the system. Furthermore, the potential decreased as temperature increased in the microbial fuel cells. The growth rate of biomass was lower at the beginning, but it was increased sharply between 9 hr and 24 hr. There was a considerable decrease in acetate concentration in the anode compartment where the rate of biomass growth was higher.
期刊介绍:
in Shams Engineering Journal is an international journal devoted to publication of peer reviewed original high-quality research papers and review papers in both traditional topics and those of emerging science and technology. Areas of both theoretical and fundamental interest as well as those concerning industrial applications, emerging instrumental techniques and those which have some practical application to an aspect of human endeavor, such as the preservation of the environment, health, waste disposal are welcome. The overall focus is on original and rigorous scientific research results which have generic significance.
Ain Shams Engineering Journal focuses upon aspects of mechanical engineering, electrical engineering, civil engineering, chemical engineering, petroleum engineering, environmental engineering, architectural and urban planning engineering. Papers in which knowledge from other disciplines is integrated with engineering are especially welcome like nanotechnology, material sciences, and computational methods as well as applied basic sciences: engineering mathematics, physics and chemistry.