Journal Pre-proofs Optimization and genetic programming modeling of humic acid adsorption onto prepared activated carbon and modified by multi-wall carbon nanotubes Zahra Noorimotlagh, Maryam Ravanbakhsh, Mohammad Reza Valizadeh, Behrouz Bayati, George Z. Kyzas, Mehdi Ahmadi, Nadereh Rahbar, Neemat Jaafarzadeh PII: S0277-5387(20)30011-5 DOI: https://doi.org/10.1016/j.poly.2020.114354 Reference: POLY 114354 To appear in: Polyhedron Received Date: 2 September 2019 Revised Date: 2 January 2020 Accepted Date: 4 January 2020 Please cite this article as: Z. Noorimotlagh, M. Ravanbakhsh, M. Reza Valizadeh, B. Bayati, G.Z. Kyzas, M. Ahmadi, N. Rahbar, N. Jaafarzadeh, Optimization and genetic programming modeling of humic acid adsorption onto prepared activated carbon and modified by multi-wall carbon nanotubes, Polyhedron (2020), doi: https://doi.org/10.1016/ j.poly.2020.114354 This is a PDF file of an article that has undergone enhancements after acceptance, such as the addition of a cover page and metadata, and formatting for readability, but it is not yet the definitive version of record. This version will undergo additional copyediting, typesetting and review before it is published in its final form, but we are providing this version to give early visibility of the article. Please note that, during the production process, errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. © 2020 Published by Elsevier Ltd.