Removal of methylene blue dye from aqueous solutions by a new wood/plastic composite based on HDPE and wood particles

Publish Year: 1402
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:

JR_POJ-10-1_004

تاریخ نمایه سازی: 27 دی 1401

Abstract:

In the present work, the ability of wood-plastic composite containing high density polyethylene and wood powder as a recycled material to remove methylene blue cation pigment was studied. The effect of some important parameters such as pH, adsorbent amount and contact time was investigated. Adsorption efficiencies for methylene blue were maximized at alkaline pH. Adsorption capacity increased with increasing adsorbent amount and contact time. The value of R۲ in Langmuir model was equal to ۱ and the separation factor for ۰.۵ and ۱ g of adsorbent was ۰.۰۹ and ۰.۱, respectively. Given that the methylene blue adsorption data were more consistent with the Langmuir isotherm model, it can be stated that the wood-plastic composite probably has uniform adsorption surfaces and the adsorption process occurred in a homogeneous system on the adsorbent surface. Based on the results of this study, it was observed that this composite is a suitable adsorbent for removing methylene blue from aqueous solutions and used as a purifying agent in the decolorization of effluents containing pigments. This adsorbent is recyclable and cost-effective for dye removal from textile industry wastewater.

Authors

Zahra Ranjbarha

Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran

Javad Mokhtari-Aliabad

Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran

Parviz Aberoomand-Azar

Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran

Seyed Amin Mirmohammadi

Department of Chemical Engineering, Central Tehran Branch, Islamic Azad University, Tehran, Iran

Mohammad Saber-Tehrani

Department of Chemistry, Science and Research Branch, Islamic Azad University, Tehran, Iran