洞察铁(III) - 酸盐生物吸收剂用于吸附淡化和水资源的三级处理
Kelvin Adrah1, Gayani Pathiraja1, Hemali Rathnayake1
1Department of Nanoscience, Joint School of Nanoscience & Nanoengineering, University of North Carolina at Greensboro, 1907 East Gate City Blvd, Greensboro, North Carolina 27401, United States.
ACS omega
|January 20, 2025
概括
一种新的铁酸盐生物吸收剂有效地从水源中去除盐度,重金属 (银,,) 和病原体. 这种可持续的技术为水资源整治和海水淡化提供了具有成本效益的解决方案,节约了淡水资源.
科学领域:
- 环境科学与工程环境科学与工程
- 材料科学 材料科学 材料科学
- 水处理技术水处理技术
背景情况:
- 越来越多的淡水需求需要替代水源,如盐水.
- 传统的淡化和污染物清除水处理方法可能是能源密集型和昂贵的.
- 需要可持续和高效的技术来解决各种水资源中的盐度,重金属和病原体问题.
研究的目的:
- 引入一种新的,成本效益高,可持续的铁酸 (FeIII) -TA) 生物吸收剂,用于水资源整治.
- 评估Fe(III) -TA生物吸收剂在去除盐度,重金属 (Ag+,Cd2+,Pb2+) 和病原体方面的有效性.
- 为了证明这项技术的潜力,作为一个独立的固定床波器系统,用于各种水源.
主要方法:
- 开发一种简单,快速,经济高效的铁酸生物吸收剂.
- 实施固定床过系统用于水处理.
- 使用吸附平衡,动力异热和质量转移扩散模型进行分析,以评估重金属的去除.
- 使用合成水,盐水和现场收集的海水进行测试,以测试海水淡化和消毒的有效性.
主要成果:
- 重金属的高吸附能力:Ag+ (96.25-116.57毫克/克),Cd2+ (66.54-104.04毫克/克) 和Pb2+ (133.83-165.66毫克/克) 在不同的pH下.
- 异常的吸附淡化功效 (>70%) 从盐水和海水中去除盐度.
- 在短时间 (∼15分钟) 的接触时间内,海水中的病原体具有显著的消毒效率 (67%).
结论:
- (III) -TA生物吸收剂为传统水处理方法提供了一个可持续的,节能和成本高效的替代方案.
- 这项技术有效地解决了多个水质问题:盐度,重金属和病原体,有助于保护水资源.
- 新的多重生物基吸附剂方法显示了通过利用盐水资源改善地表和地下水质量的巨大潜力.
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