Abstract

Dye removal from industrial wastewaters is a constant concern in industry, like textile or paper, since the consumers demands are in continuous increase and new dye combinations are developed and used. Therefore, efficient, and environmentally friendly dye adsorbents are a continuous necessity. This research aims to characterize the absorbents capacities of grapeseed material (rest material after grapeseed oil extraction). Apart from adsorbent characterization, the influence of contact time, adsorbent quantity and the influence of the solution pH are investigated. Following the principles of sustainability and circular economy, the transformation of by-products during the process of obtaining grapeseed oil into a usable absorbent material could resolve two major issues in two of the largest industries: wine industry waste management and removal of dyes from the textile industry wastewater.

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