磷酸盐
废水
砖
磷
氢氧化物
材料科学
化学工程
废物管理
化学
无机化学
环境科学
环境工程
冶金
有机化学
复合材料
工程类
作者
Jieyi Wu,Qiong Tian,Hao Chen,Meiyu He,Fengxian Qiu,Tao Zhang
标识
DOI:10.1016/j.jwpe.2022.103344
摘要
Efficient phosphorus removal from wastewater is of paramount importance, however, the design of low-cost, high-performance materials for phosphorus removal is faced with a huge challenge. Herein, a waste brick slag loaded with iron oxide and lanthanum hydroxide ([email protected]2O3-La(OH)3) has been prepared by sequential deposition of Fe2O3 and La(OH)3 nanoparticles on the surface of brick slag particles and applied to removal of phosphate from wastewater via column separation, and the maximum phosphate separation efficiency can reach 99 %. More importantly, it shows a high phosphate removal efficiency (≥90 %) over the wide range of pH 3.0–8.0, in addition to a high separation selectivity toward phosphate and high throughput during separation process. The low cost and high removal efficiency benefit from the use of building waste bricks and column separation which due to its full contact with the target. The ligand exchange and the chemical precipitation are mainly responsible for the phosphate removal by [email protected]2O3-La(OH)3. Therefore, the prepared [email protected]2O3-La(OH)3 particles with the high phosphate separation efficiency and column separation for phosphate removal developed has the potential to become an excellent candidate for practical application in phosphate separation and provides a reference path for building waste brick recycling.
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