**Author details**

From **Table 5** and **Figure 3(a)**, it is clear that the values of Rct and Rads significantly declined with a rise in the rotation speed of the Al anode from 0 attaining the lowest value at 150 rpm. Therefore, the fouling rate of the anode was lessened, and the rate of adsorption of color to the interface of the anode increased at 150 rpm. Conversely, the highest values of the adsorption capacitance and double-layer capacitance were observed at 150 rpm. This elucidates the improvement in the rate of removal upon rotating the anode at 150 rpm as the EC experiment proceeds. It also confirms that the designed model can be a panacea to the limitation of the previous model.

**Figure 3.** (a) Nyquist plots of the Al anode in an aqueous textile wastewater solution at 25°C temperature and varying

 63.30 96.98 0.128 1774 7.18 56.90 88.89 0.129 1531 7.36 59. 08 90.00 0.145 1369 7.13 40.54 41.65 0.412 1151 8.31

electrode speed of rotation. (b) Equivalent circuits utilized to fit the Nyquist plots.

**Table 5.** Electrochemical impedance data extracted from the Nyquist plots at varying speed of rotation (rpm).

**(Ω) Rct(Ω) Cdl(μF) Rads (Ω) Cads(μF)**

The use of novel EC reactor in textile wastewater treatment exhibits a higher removal efficiency than the erstwhile models. The efficiency of the textile effluence pollutant removal with high

1 cm interelectrode distance (IED) and 150 rpm anode rotation speed. A rise in the value of CD enhanced the efficiency of EC process in the treatment of textile wastewater. The setting of the

, at initial reaction period (10 min) at

values was achieved using a lower CD, precisely 4 mA/cm<sup>2</sup>

**4. Conclusions**

**Rotation speed (rpm) Rs**

122 Wastewater and Water Quality

Ahmed Samir Naje<sup>1</sup> \*, Mohammed A. Ajeel<sup>2</sup> , Peter Adeniyi Alaba3 and Shreeshivadasan Chelliapan<sup>4</sup>

\*Address all correspondence to: ahmednamesamir@yahoo.com

1 Department of Architect Engineering, College of Engineering, Almuthana University, Almuthana Governorate, Iraq

2 Al-Karkh University of Science, Baghdad, Iraq

3 Department of Chemical Engineering, Covenant University, Sango-Ota, Ogun-State, Nigeria

4 Department of Engineering, Razak Faculty of Technology and Informatics, Universiti Teknologi Malaysia, Malaysia
