使用铝电极和铁电极的间歇式电凝系统处理受污染的河水：工艺性能和统计分析

IF 4.3 3区材料科学 Q1 ENGINEERING, ELECTRICAL & ELECTRONIC ACS Applied Electronic Materials Pub Date : 2024-09-12 DOI:10.1007/s11270-024-07495-6

Nouara Boudjema, Dhirar Ben Salem, Elleuch Lobna, Ouakouak Abdelkader, Nabil Mameri

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摘要

本研究探讨了使用铝（Al）和铁（Fe）电极的电凝（EC）工艺减少淡水化学污染的效率。研究采用批处理方式，对影响电凝效率的几个参数进行了调查。结果表明，铝电极和铁电极都能令人满意地消除水中的化学污染物。在 3.0 A 的强度下，铁/铝对电极在 30 分钟内降低浊度的效率极高（≈ 99%）。电流强度从 0.3 到 1.0 时，COD 值从 62% 增加到 65%；使用铝电极，电流强度从 2.0A 增加到 3.0A 时，COD 值从 70% 增加到 98%。使用铁电极（10 分钟）对 COD 的去除率达到 86%，而使用铝电极（2.5 电流强度）（45 分钟后）对 COD 的去除率达到 99%。研究还发现，两种电极（铝电极和铁电极）对 COD 的 P 值均大于 0.05，对 TSS 的 P 值均小于 0.05。研究结果还证实，在降低 TSS 方面存在显著差异，而在 COD 方面不存在显著差异。总之，该研究强调了使用铝电极和铁电极电凝去除淡水中化学污染物的性能，突出了其作为一种可持续和适应性强的解决方案在水处理装置中应用的潜力。

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Treatment of contaminated river water by batch electrocoagulation system using aluminium and iron electrodes: Performance of process and statistical analysis

This study examines the reduction efficiency of chemical pollution of freshwater by electrocoagulation (EC) process using aluminium (Al) and iron (Fe) electrodes. Several parameters affecting the EC efficiency were investigated in batch manner. Results indicate that both Al and Fe electrodes can eliminate satisfactorily the chemical pollutants of water. The Fe/Fe pair electrode showed an excellent efficiency in reducing turbidity (≈ 99%) within 30 min of time and at 3.0 A intensity. The COD value increased from 62 to 65% with current intensity from 0.3 to 1.0, and from 70 to 98% following the increase in intensity from 2.0 to 3.0A by using the Al electrode. The removal of COD reached 86% with Fe electrode (for 10 min) while it was 99% with Al electrode (after 45 min) using Al electrode (at 2.5 intensity). It was also found that the P value is greater than 0.05 for COD and less than 0.05 for TSS with both electrodes (Al, Fe). The finding also confirmed that the significant difference exists in the case of TSS reduction and it does not exist in the case of COD. Overall, the study underscores the performance of electrocoagulation using both Al and Fe electrodes for removing chemical pollutants in freshwater, highlighting its potential as a sustainable and adaptable solution for their application in water treatment units.