Correction to: Modified fractional-order model for biomass degradation in an up-flow anaerobic sludge blanket reactor at Zenein Wastewater Treatment Plant

Affiliations

• ¹ Sanitary and Environmental Engineering, Civil Engineering Department, Institute of Aviation Engineering & Technology, PhD, Giza, 12815, Egypt. mostafaelseddek@yahoo.com.
• ² Sanitary and Environmental Engineering, Public Works Department, Faculty of Engineering, Cairo University, PhD, Cairo, 12613, Egypt.
• ³ Engineering Mathematics Department, Faculty of Engineering, Cairo University, PhD, Cairo, 12613, Egypt.
• ⁴ NISC Research Center, Nile University, Giza, 12588, Egypt.