Removal of Copper(Cu) from Wastewater Using Modified Recycle Carbon Black (RCB) Waste Tyre

Key Engineering Materials Pub Date : 2024-02-16 DOI:10.4028/p-hkx3rb

Mohamad Amirul Izat Nordin, Nur Azrie Hizad Ab Aziz, U. M. Md. Ali, Anis Atikah Ahmad, M. I. Dzahir

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Abstract

In this century, sustainability has become an essential element in any project to ensure a safe environment. The conversion of waste materials is an important step towards achieving sustainability. Moreover, converting these materials into adsorbents to treat wastewater shows great potential, especially due to its cost-effectiveness and the reduction of solid waste disposal. This research study aims to investigate the removal of Copper (Cu) from wastewater using waste tyre-recycled carbon black (WT-rCB) and modified waste tyre-recycled carbon black (WT-dAC) to determine their adsorption capability. The removal of Copper using WT-rCB and WT-dAC were investigated with various parameters: pH value, adsorbent dosage, and contact time. The chemical-physical activation process was employed to produce the WT-dAC. First, WT-rCB was impregnated with 1:5 wt% of 1 M KOH solution, then physically activated at 650 °C for 1 hr with flowing Nitrogen gas at 1 L/min. The adsorption study observed a removal efficiency of up to 65% using WT-dAC, while WT-rCB showed a removal efficiency of 22% under the optimum conditions. Eventually, the study demonstrates the employability of WT-dAC in the removal of Copper (Cu) from wastewater.

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利用改性回收炭黑 (RCB) 废轮胎去除废水中的铜 (Cu)

在本世纪，可持续性已成为任何项目确保安全环境的基本要素。废料转化是实现可持续发展的重要一步。此外，将这些材料转化为吸附剂来处理废水显示出巨大的潜力，特别是由于其成本效益和减少固体废物的处置。本研究旨在调查使用废轮胎再生炭黑（WT-rCB）和改性废轮胎再生炭黑（WT-dAC）去除废水中铜（Cu）的情况，以确定它们的吸附能力。研究了使用 WT-rCB 和 WT-dAC 去除铜的不同参数：pH 值、吸附剂用量和接触时间。生产 WT-dAC 采用了化学物理活化过程。首先，用 1:5 wt% 的 1 M KOH 溶液浸渍 WT-rCB，然后在 650 °C 下以 1 L/min 的氮气流速物理活化 1 小时。吸附研究发现，在最佳条件下，WT-dAC 的去除率高达 65%，而 WT-rCB 的去除率为 22%。这项研究最终证明了 WT-dAC 在去除废水中的铜（Cu）方面的适用性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Key Engineering Materials

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