PRODUCTION OF BIOSORBENTS FROM TEA RESIDUE
Abstract
Tea dregs are a type of biomass used as a biosorbent to remove pollutants from wastewater. Tea dregs have the potential to be a heavy metal adsorbent due to their high cellulose content. Tea dregs contain 37% cellulose, 14% lignin and hemicellulose, and 25% polyphenols. These cellulose compounds can bind metal ions during the adsorption process due to the presence of carboxyl and hydroxyl groups in their compounds. In addition to cellulose, tea dregs also contain lignin and hemicellulose at 14% concentrations. The tea dregs, which will be used as a biosorbent, are sieved and dried, then analyzed. The analysis is divided into two methods: water content analysis and biosorbent performance analysis on wastewater using a visible light spectrophotometer. The results show that tea-derived biosorbents have extraordinary adsorption capacity, especially for heavy metal ions. Tea dregs are also an efficient biosorbent and can be used for more environmentally friendly and economical wastewater treatment.
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DOI: https://doi.org/10.20961/esta.v4i1.109728
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