Batch Electrocoagulation Process for the Removal of High Colloidal Clay from Open-Cast Coal Mine Water Using Al and Fe ElectrodesBatch-Elektrokoagulationsverfahren zur Entfernung von hochkolloidalem Ton aus Abwasser im Kohletagebau unter Verwendung von Al- und Fe-ElektrodenProceso de electrocoagulación por fases para la eliminación de arcilla coloidal del agua de minas de carbón a cielo abierto utilizando electrodos de Al y Fe

被引：0

作者：

Muhammad Sonny Abfertiawan ^{[1
]}

Mindriany Syafila ^{[1
]}

Marisa Handajani ^{[1
]}

Faiz Hasan ^{[1
]}

Hanifah Oktaviani ^{[1
]}

Firman Gunawan ^{[2
]}

dan Febriwiadi Djali ^{[2
]}

机构：

[1] Bandung Institute of Technology,Water and Wastewater Engineering Research Group, Faculty of Civil and Environmental Engineering

[2] PT. Berau Coal,Environmental Department

来源：

Mine Water and the Environment | 2024年 / 43卷 / 3期

关键词：

Active treatment; Coagulant; Electrode; Sedimentation;

D O I：

10.1007/s10230-024-01004-1

中图分类号：

学科分类号：

摘要：

Open-cast coal mining operations can produce water with high amounts of total suspended solids (TSS). We tested the use of electrocoagulation for the removal of colloidal clay from mine water. Monopolar batch electrocoagulation was performed at the laboratory scale using Al and Fe electrodes and varying the DC current (0.5, 1, and 2 A) and contact time (15, 30, and 45 min). Aluminum electrode electrocoagulation with a current of 2 A and a contact time of 15 min had the greatest TSS removal efficiency (99%), with concentrations decreasing from 5,400 to 23 mg/L. The greatest removal (98 and 99%, respectively) was obtained using an Al electrode with an electric current of 0.5 and 1 A, with 30 min of contact time. With an Fe electrode, the greatest efficiency was achieved with a current of 2 A and a contact time of 30 min. The TSS removal efficiency reached 98% while the concentration dropped to 66 mg/L, followed by 89% and 95% for the 0.5 A-45 min and 1 A-15 min variations, respectively.

引用

页码：516 / 528

页数：12