Relationship between flocculant dosage and efficiency: a case study on HAB mitigation using aluminum sulfate-modified clay

Wenbin JIANG; Zhiming YU; Xiaomiao ZANG; Xihua CAO; Kaiqin JIANG; Xiuxian SONG

doi:10.1007/s00343-026-5303-5

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Relationship between flocculant dosage and efficiency: a case study on HAB mitigation using aluminum sulfate-modified clay

Updated：2026-09-17

- Relationship between flocculant dosage and efficiency: a case study on HAB mitigation using aluminum sulfate-modified clay
- Journal of Oceanology and Limnology Pages: 1-13(2026)
- Affiliations：
  
  1.CAS Key Laboratory of Marine Ecology and Environmental Sciences, Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China
  2.Functional Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
  3.University of Chinese Academy of Sciences, Beijing 100049, China
  4.Center for Ocean Mega-Science, Chinese Academy of Sciences, Qingdao 266071, China
- Author bio：
  
  zyu@qdio.ac.cn
- Funds：
- DOI：10.1007/s00343-026-5303-5
  CLC：
- Received：05 September 2025，
  
  Online First：17 September 2026，
- Accepted：
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JIANG Wenbin,YU Zhiming,ZANG Xiaomiao,et al.Relationship between flocculant dosage and efficiency: a case study on HAB mitigation using aluminum sulfate-modified clay[J].Journal of Oceanology and Limnology,
DOI：

JIANG Wenbin,YU Zhiming,ZANG Xiaomiao,et al.Relationship between flocculant dosage and efficiency: a case study on HAB mitigation using aluminum sulfate-modified clay[J].Journal of Oceanology and Limnology, DOI：.

摘要

Abstract

Flocculation is a common method for pollution treatment

and widely applied in various types of water pollution treatment due to its convenience and effectiveness. The dosage of flocculants is the key factor determining flocculation efficiency. There is a need to establish the relationship between the dosage of flocculant and the removal efficiency of pollutants (dosage-efficiency relationship)

and the empirical method was deemed the most feasible way to address this problem. We successfully constructed the dosage-efficiency relationship among the dosage of modified clay

the cell density of red tide organisms

and algal removal efficiency

and assessed the empirical calculation equation of algal removal efficiency. The difference between the measured value and the theoretical value of the algal removal efficiency calculated by the equation was below 15%

the standard deviation was below 20%

and the empirical equation derivation method was proved suitable for various red tide organisms and various modified clays. By exploring the dosage-efficiency relationship between the dosage of aluminum sulfate-modified clay

the cell density of algae and algal removal efficiency

we provided data and theoretical support for the construction of a quantitative evaluation method for flocculation efficiency.

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Keywords

references

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Related Author

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Xin FAN

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Related Institution

Laboratory of Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology

University of Chinese Academy of Sciences

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Institute of Oceanology

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