College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China.
College of Environmental Science and Engineering, Ocean University of China, Qingdao 266100, China; The Key Lab of Marine Environmental Science and Ecology, Ministry of Education, Ocean University of China, Qingdao 266100, China; School of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China.
J Environ Manage. 2019 Jan 15;230:128-150. doi: 10.1016/j.jenvman.2018.09.073. Epub 2018 Oct 1.
Treatment of toxic and emerging pollutants (T&EPs) is increasing the threats to the survival of conventional wastewater treatment (WWTs) technologies. The high installation and operational costs of advanced treatment technologies have shifted the research interest to the development of economical and reliable technology for management of T&EPs. Thus, recently biogenic nanoparticles (BNPs) fabricated using microbes/microorganisms are getting tremendous research interest due to their unique properties (i.e. high specific surface area, desired morphology, catalytic reactivity) for the biodegradation and biosorption of T&EPs. In addition, BNPs can be manufactured using metal contaminated water which indicates a hidden potential for resource recovery and utilization. Therefore, the present study discusses the adsorptive and catalytic performance of BNPs in the removal of T&EPs from water (W) and wastewater (WW). In addition, inspired by the superior performance of BNPs in advance WWT, a model of BNPs based WWT resource recovery and utilization process is also proposed. Finally, main issues i.e. mass production, leaching, poisoning/toxicity, regeneration, reusability and fabrication costs and process optimization are discussed which are main hinders in the transfer of BNPs based WWT technologies from laboratory to commercial scale.
处理有毒和新兴污染物（T&EPs）正在增加对传统废水处理（WWTs）技术生存的威胁。先进处理技术的高安装和运营成本已经将研究重点转移到开发经济且可靠的技术，以管理 T&EPs。因此，最近使用微生物/生物体制造的生物成因纳米颗粒（BNPs）由于其独特的性质（即高比表面积、所需的形态、催化反应性），用于 T&EPs 的生物降解和生物吸附，引起了巨大的研究兴趣。此外，BNPs 可以使用金属污染的水制造，这表明在资源回收和利用方面具有潜在的用途。因此，本研究讨论了 BNPs 在去除水中（W）和废水中（WW）的 T&EPs 方面的吸附和催化性能。此外，受 BNPs 在先进 WWT 中卓越性能的启发，还提出了一种基于 BNPs 的 WWT 资源回收和利用过程的模型。最后，讨论了主要问题，即大规模生产、浸出、中毒/毒性、再生、重复使用和制造成本以及工艺优化，这些问题是将基于 BNPs 的 WWT 技术从实验室转移到商业规模的主要障碍。
