[通过含的生物炭与和酸盐从水中去除]
Tian Liu1, Si-Lu Lü1, Xing-Guo Du1
1College of Ecology and Environment, Chengdu University of Technology, Chengdu 610059, China.
Huan jing ke xue= Huanjing kexue
|March 12, 2024
概括
蛋和厨房废弃物生物碳复合物 (ES-BC/P) 有效地从水中去除,达到99%的效率,最小的释放. 这种废弃物衍生材料为整治提供了一个可持续的解决方案.
科学领域:
- 环境化学环境化学
- 材料科学 材料科学 材料科学
- 废物管理 废物管理
背景情况:
- 水中的 (Pb2+) 污染对环境和健康构成重大风险.
- 开发具有成本效益和高效的吸附剂来去除重金属至关重要.
- 通过创建功能性材料来利用废物是一个重要的可持续发展目标.
研究的目的:
- 从蛋和厨房废物中合成和表征一种新的生物炭复合物 (ES-BC/P),用于和的去除.
- 用开发的ES-BC/P材料评估从水溶液中去除的效率和机制.
- 评估在水净化中利用废物资源的潜力.
主要方法:
- 蛋和厨房废物的热解,以产生含的生物炭 (ES-BC).
- 用酸盐 (ES-BC/P) 修改ES-BC,以增强吸附.
- 批量吸附实验以确定除效率,动力学和异热量.
- 材料的表征和去除机制的分析 (离子交换,沉).
主要成果:
- 在各种初始度 (1-100毫克·L-1) 中,ES-BC/P在从水中去除方面表现出高效率 (高达99%).
- 的最大吸附能力被确定为493.12毫克·g-1在318K,表明强烈的吸附.
- 的去除主要是通过Pb2+与Ca2+的离子交换和随后的酸和碳酸沉而发生,释放量微不足道.
- 该材料在弱酸性溶液中表现出自我调节pH的特性.
结论:
- 合成的ES-BC/P复合物是一种高效的吸附剂,用于从污染水中去除.
- 该材料的机制涉及离子交换和化学吸收的组合,导致有效的封存.
- 这项研究强调了废物 (蛋和厨房废物) 的成功利用,使其成为用于环境修复的功能吸附剂.
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