The influence of structural topology of additively manufactured PEGDA monolith on adsorption performance for textile wastewater treatment

Nurul Husna Mohd Yusoff, Chien Hwa Chong*, Voon Loong Wong, Kean How Cheah, Yoke Kin Wan

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

With the rapid advancement of three dimensional (3D) printing technology that offers flexibility to achieve desired surface area and permeability for wastewater applications, structural topology design has the potential to significantly improve the adsorption performance. This present work involves fabricating the green water technology with four different complex monolithic structural designs (Kagome, gyroid, Fischer, and body-centered cubic [BCC]) with specific surface areas varied from 19.4 to 39.84 mm2 via digital light processing (DLP) technique. All the monolithic structures with different structural topologies were grafted with chitosan to evaluate their adsorption performance in a batch process. The influence of different structural topology on the adsorption performance and efficiency was evaluated at an optimal temperature of 60°C with optimum pH of 6.3 for a reaction time of 2 h using synthetic methyl orange (MO) dye and textile wastewater. Results indicated that the body-centered cubic (BCC) design exhibited the highest MO adsorption capacity (12.71 mg/g), with the highest permeability (2.57 (Formula presented.) 10−7 m2) and surface area (39.84 mm2). Additionally, a direct relationship was found between the surface area and the permeability of the adsorbent as well as adsorption strength. Fifty percent of color and 2.46% of chemical oxygen demand (COD) removal efficiencies were achieved to verify the adsorbent feasibility in actual application. The present work mainly establishes the feasibility of 3D printing in fabricating different monolithic structures, which enables future topology optimization for improved wastewater management.

Original languageEnglish
Article numbere2952
JournalAsia-Pacific Journal of Chemical Engineering
Volume18
Issue number6
Early online date24 Jul 2023
DOIs
Publication statusPublished - 14 Dec 2023

Keywords

  • additive manufacturing
  • adsorption
  • chitosan
  • monolithic structures
  • permeability
  • wastewater

ASJC Scopus subject areas

  • General Chemical Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Fingerprint

Dive into the research topics of 'The influence of structural topology of additively manufactured PEGDA monolith on adsorption performance for textile wastewater treatment'. Together they form a unique fingerprint.

Cite this