Proceedings of the International Conference on Industrial Design and Environmental Engineering, IDEE 2023, November 24–26, 2023, Zhengzhou, China

Research Article

Comparison of Chemical and Electrocoagulation Methods in Treating Wastewater

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  • @INPROCEEDINGS{10.4108/eai.24-11-2023.2343425,
        author={Hanwen  Yang and Jingxuan  Hao and Zicheng  Han and Shiqi  Cheng and Luoping  Shi},
        title={Comparison of Chemical and Electrocoagulation  Methods in Treating Wastewater },
        proceedings={Proceedings of the International Conference on Industrial Design and Environmental Engineering, IDEE 2023, November 24--26, 2023, Zhengzhou, China},
        publisher={EAI},
        proceedings_a={IDEE},
        year={2024},
        month={2},
        keywords={chemical coagulation; electrocoagulation; wastewater treatment; industrial  applications},
        doi={10.4108/eai.24-11-2023.2343425}
    }
    
  • Hanwen Yang
    Jingxuan Hao
    Zicheng Han
    Shiqi Cheng
    Luoping Shi
    Year: 2024
    Comparison of Chemical and Electrocoagulation Methods in Treating Wastewater
    IDEE
    EAI
    DOI: 10.4108/eai.24-11-2023.2343425
Hanwen Yang1, Jingxuan Hao2,*, Zicheng Han3, Shiqi Cheng4, Luoping Shi5
  • 1: Adcote school Shanghai
  • 2: Nanjing Foreign Language School
  • 3: University of Rochester
  • 4: Zhengzhou Foreign Language School
  • 5: Nanjing Jinling High School
*Contact email: hao.jingxuan@outlook.com

Abstract

In the process of wastewater treatment, chemical flocculation is the method we usually choose,and it has developed early and has rich experience.In recent years, electrocoagulation has become an emerging method. They both provide a reliable method for treating water turbidity,the cloudiness or haziness of a fluid typically invisible to the naked eye,and generally,they enable up to 90% reduction in suspended solids and organic loads.Firstly,we will introduce the mechanisms of the two methods and compare the two principles.The main difference between the two methods can be attributed to the way the coagulant is applied to the treated solution.Organic or inorganic substances are directly added and then dissolve in the water to provide counter electric charges in chemical coagulation,whereas electrocoagulation uses ions produced by the metal electrode during electrolysis process for neutralization.Secondly,methods for measuring chemical oxygen demand(the main pollutants in wastewater)will be introduced. Once again,we will compare the differences between chemical coagulation and electrocoagulation methods in terms of economy,efficiency, stability,and other aspects in specific cases from three aspects: inorganic,organic,and heavy metals. Finally,we will summarize the current application fields of the two technologies and put forward possible research directions in the future.