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Updated: Dec 12, 2025

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Parameter optimization of environmental technologies using a LCA-based analysis scheme: A bioaugmentation case study.

Xinyue Zhao1, Shunwen Bai2, Yinan Tu3

  • 1College of Resource and Environment, Northeast Agricultural University, Harbin 150030, PR China; State Key Laboratory of Urban Water Resource and Environment, School of Environment, Harbin Institute of Technology, Harbin 150090, PR China; Section of Sanitary Engineering, Department of Water Management, Delft University of Technology, Delft 2628CN, the Netherlands.

The Science of the Total Environment
|August 14, 2020
PubMed
Summary
This summary is machine-generated.

This study introduces a proactive Life Cycle Assessment (LCA) approach using a multimethod eight-step (MMES) scheme for optimizing environmental technologies. The MMES scheme enhances technical efficiency and environmental sustainability, as demonstrated in a constructed wetland case study.

Keywords:
Environmental technologiesLife cycle assessmentMulti-objective optimizationParameter optimizationStatistical analysis

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Area of Science:

  • Environmental Science
  • Chemical Engineering
  • Biotechnology

Background:

  • Life Cycle Assessment (LCA) is typically used retrospectively for environmental technologies.
  • Optimizing environmental technologies requires a proactive approach to identify critical parameters under constraints.
  • Existing methods may not fully capture the interplay between technical efficiency and environmental impact.

Purpose of the Study:

  • To introduce a novel multimethod eight-step (MMES) analysis scheme for proactive environmental technology assessment.
  • To integrate Life Cycle Assessment (LCA) with experimental design and multi-objective optimization.
  • To optimize microbial culture conditions for enhanced pollutant removal in constructed wetlands.

Main Methods:

  • Developed and applied a multimethod eight-step (MMES) analysis scheme.
  • Integrated LCA with Plackett-Burman multifactorial design and central composite design.
  • Employed multi-objective optimization to balance technical efficiency and environmental sustainability.

Main Results:

  • The MMES scheme successfully optimized culture conditions for Arthrobacter sp. ZXY-2, enhancing atrazine removal.
  • Reducing Na2HPO4·12H2O concentration decreased freshwater ecotoxicity while maintaining high atrazine removal.
  • Optimized microbial inocula production reduced total environmental impact by 13%-50% and improved constructed wetland performance.

Conclusions:

  • The MMES scheme is effective for proactive parameter optimization of environmental technologies.
  • The integrated approach successfully balanced technical and environmental objectives.
  • Future work should expand MMES applications and refine uncertainty management.