Comparison of Methods for Removing Petroleum Products from Locomotive Depot Wastewater

Authors

  • Islom Sattorov Qudrat ugli Termez State University of Engineering and Agrotechnologies, 2nd-year Master's student
  • Rassoli Ologhbek Termez State University of Engineering and Agrotechnologies, 2nd-year Master's student

DOI:

https://doi.org/10.5281/zenodo.24117962

Keywords:

wastewater, petroleum products, locomotive depot, multi-criteria decision making, AHP, TOPSIS, treatment efficiency

Abstract

Six methods of removing petroleum products from locomotive depot wastewater (gravity separation, coagulation-flocculation, flotation, adsorption, membrane filtration and biological treatment) were compared by treatment efficiency, cost, energy use, waste generation and operational complexity. Criteria weights were derived by AHP (consistency ratio CR = 0.007), and the methods were ranked by TOPSIS and the weighted sum model. The Termez locomotive depot test report was used as the baseline (petroleum products 0.7 mg/l, 70% of the limit). The ranking depends on the weights: membrane filtration leads when efficiency is prioritised, gravity separation when cost and simplicity are; adsorption ranks last in all scenarios. The method scores are expert judgements based on published data, not experimental measurements.

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Published

2026-11-07

Issue

Vol. 6 No. 11 (2026)

Section

Articles

License

Copyright (c) 2026 Islom Sattorov Qudrat ugli, Rassoli Ologhbek

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This work is licensed under a Creative Commons Attribution 4.0 International License.

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How to Cite

Sattorov Qudrat ugli, I., & Ologhbek, R. (2026). Comparison of Methods for Removing Petroleum Products from Locomotive Depot Wastewater. International Bulletin of Applied Science and Technology, 6(11), 92-95. https://doi.org/10.5281/zenodo.24117962