化学
离子交换
膜蒸馏
废水
钴
蒸馏
资源回收
镍
膜
化学工程
色谱法
无机化学
环境工程
离子
环境科学
海水淡化
有机化学
工程类
生物化学
作者
Yuri Abner Rocha Lebron,Ana Flávia Rezende Silva,Victor Rezende Moreira,Lucilaine Valéria de Souza Santos,Míriam Cristina Santos Amaral
出处
期刊:Desalination
[Elsevier]
日期:2023-12-07
卷期号:573: 117224-117224
被引量:5
标识
DOI:10.1016/j.desal.2023.117224
摘要
This work aims to achieve a process intensification through the hybridization of direct contact membrane distillation (DCMD) and ion exchange (IX) to increase resource recovery (water, H2SO4, Copper (Cu), Nickel (Ni), and Cobalt (Co)) from a gold mining wastewater. An increase in maximum recovery rate was achieved by the DCMD in the hybrid configurations – from 34 to 52 %. Recovery of Cu, Ni and Co is best achieved by NH4OH (4 mol/L), however with considerable carryover. Conversely, selective recovery can be achieved by different eluting agents H2SO4 0.1 mol/L to recover Co (~80 %), H2SO4 1 mol/L to recover Ni (~47 %), and NH4OH 4 mol/L to recover Cu (~26 %), with a lower carryover of other ions (<14 %). Scale-up calculations showed that the Amberlyst A26 mass required for the hybrid IX (batch) is 2.4× lower than the Dowex M4195, which resulted from the exchange capacity and selectivity. Conversely, the estimated Amberlyst A26 mass required for the hybrid IX (fixed-bed) was higher due to the higher initial concentration of H₂SO₄. Lastly, CapEX ranged from 0.2 to 5.6 M US$, and OpEX from 2.61 to 11.42 US$/m3. Considering earnings with the recovered resources the hybrid fixed-bed configurations are a clear choice due to the lowest payback times (<4 years).
科研通智能强力驱动
Strongly Powered by AbleSci AI