Nurlan Nurbek, Akmanova Ainash, Lee Woojin
Pharmacology and Toxicology, School of Medicine, Nazarbayev University, Nur-Sultan 010000, Kazakhstan.
Green Energy and Environmental Research Group, National Laboratory Astana, Nazarbayev University, Nur-Sultan 010000, Kazakhstan.
Nanomaterials (Basel). 2022 Apr 4;12(7):1212. doi: 10.3390/nano12071212.
The formation of bromate (BrO)in groundwater treatment is still a severe environmental problem. Catalytic hydrogenation by nanoscale heterogeneous catalysts with gaseous H or solid-state H has emerged as a promising approach, which relies on reducing BrO to innocuous Br via the process of direct electron transfer or reduction with atomic hydrogen. Several nanocatalysts have demonstrated high efficiency with a 100% effective BrO reduction with greater than 95% of Br generation in the batch and continuous reactors. However, this technology has not been widely adopted in water treatment systems. Indeed, this research article summarizes the advantages and disadvantages of these technologies by highlighting the factors of nanomaterials reduction efficiency, long-term durability, and stability, as well as addressing the essential challenges limiting the implementation of the use of H for BrO reduction. In this work, we provide an economic evaluation of catalytic BrO removal, safe hydrogen supply, storage, and transportation.
地下水处理中溴酸盐（BrO）的形成仍然是一个严峻的环境问题。利用气态氢或固态氢通过纳米级多相催化剂进行催化氢化已成为一种有前景的方法，该方法依靠通过直接电子转移过程或用原子氢还原将BrO还原为无害的Br。几种纳米催化剂已证明具有高效率，在间歇式和连续式反应器中能100%有效地还原BrO，Br生成率大于95%。然而，这项技术尚未在水处理系统中广泛应用。实际上，这篇研究文章通过突出纳米材料还原效率、长期耐久性和稳定性等因素，总结了这些技术的优缺点，并解决了限制使用H还原BrO实施的关键挑战。在这项工作中，我们对催化去除BrO、安全的氢气供应、储存和运输进行了经济评估。
