在计算可持续性和绿色可持续发展目标框架内,通过HA-nCaO进行甘葡萄修复
Mahmoud F Mubarak1, Ahmed M Saleh2
1Petroleum Applications Department, Egyptian Petroleum Research Institute (EPRI), Ahmed El-Zomer, Nasr City, Cairo, Egypt.
Scientific reports
|November 27, 2025
概括
一种由纳米氧化和酸制成的新型复合吸附剂有效地处理甘葡萄糖,中和酸性并去除污染物. 这种可持续的方法为工业废水管理提供了高效率和可重复使用性.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废水处理 废水处理
背景情况:
- 甘葡萄酒,一种高度酸性蒸厂的废水,给环境带来了重大挑战.
- 传统的处理方法往往不足以有效地管理葡萄酒污染.
研究的目的:
- 开发一种新型复合吸收剂,用于有效处理甘葡萄汁.
- 研究吸附剂在消除化学氧气需求 (COD),总有机碳 (TOC) 和色素方面的性能.
- 评估开发的吸附剂的可持续性和可重复使用性.
主要方法:
- 绿色合成纳米氧化物 (nCaO) 与酸 (HA) 结合,通过共同沉和超声波稳定.
- 使用XRD,FTIR,SEM和BET进行表征,以确认半孔混合结构和表面特性.
- 批量吸附实验以确定最佳剂量,动力学和去除效率.
- 整合了凝阶段,以增加降水量.
- 在多个循环中进行可重复使用性测试.
主要成果:
- 复合吸附剂的表面积为112.6 m2 g-1,表面基本性得到了增强.
- 最佳剂量 (5 g L-1) 在90分钟内实现了82.4%的COD去除,76.1%的TOC减少和89.5%的色彩去除.
- 有效中和酸性维纳斯 (pH < 4) 到 7.6 ± 0.2 没有外部.
- 伪二次动力学 (R2 = 0.991) 表示化学吸收的主导地位.
- 在四个循环后,吸附剂保持了≥68%的效率.
- 有利的可持续性评估与联合国可持续发展目标6和12相一致.
结论:
- 新的nCaO-HA复合吸附剂为甘葡萄汁处理提供了高效和可持续的解决方案.
- 综合方法有效中和酸性,并消除关键有机污染物.
- 吸附剂的可重复使用性和积极的可持续性指标支持其在工业废水管理中的实际应用.
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