Abstract

Adsorption of heavy metals from degraded of Polyethylene terephthalate (PET) products by strong cation exchange resin AmberliteIR-120 under optimized conditions toward the selectivity removal of metals are in the following order: Al3+ > Zn2+ > Mg2+ > Fe2+ > Ni2+. Therefore, kinetic and adsorption isotherm models were applied for fitting experimental data. Comparatively, adsorption isotherm study revealed that Langmuir isotherm model better fits adsorption on surface of resin over than the Freundlich model. In summary, AmberliteIR-120 strong acid cation exchange resin can be used as an efficient adsorbent for heavy metals removal from depolymerized products bis(2-hydroxyethyl) terephthalate.

Highlights

  • Plastics are becoming popular as an industrial candidate and fundamental objects in daily consumer’s life; plastic material possess some unique properties which can make them useable and can be recycled by any route, and most importantly is the process is economically inexpensive [1].Considering the production rate, plastics waste is continuously on the increased, and the conversion of these materials into a useable chemical product by recycling approach help to mitigate the accumulation in the environment

  • As plastics waste remain in the environment, they deteriorate and leached out heavy metal ions into the landfill, which derived from different polymerization catalysts, additives, and recycling processes

  • In di-acid (HNO3 and H2SO4) (1:4) mixture showed different metals are present in BHET

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Summary

Introduction

Considering the production rate, plastics waste is continuously on the increased, and the conversion of these materials into a useable chemical product by recycling approach help to mitigate the accumulation in the environment. Petcore recently released that European collected post-sorting polyethylene terephthalate (PET) reached 1.13 million tons in 2007, and up about 20% from 2006. Of PET bottles were collected and consumed for recycling purposes [2]. Environmental Protection Agency) reported in 2017, plastics generation was 35.4 million tons in the US, while 26.8 million tons of landfills were generated; littered our environment in a large quantity [3]. As plastics waste remain in the environment, they deteriorate and leached out heavy metal ions into the landfill, which derived from different polymerization catalysts, additives, and recycling processes. Heavy metals persistence led to an adverse effect on population because of toxicity at lower-level caused many health problems [4,5] their non-degradability and drainage from

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