Comment on "Bioflocculation management through high-rate contact stabilization: A promising technology to recover organic carbon from low-strength wastewater by Rahman, A., Meerburg, FA, Ravadagundhi, S., Wett, B., Jimenez, J., Bott, C., Al-Omari, A., Riffat, R., Murthy, S. and De Clippeleir, H. [Water Research 104 (2016) 485-496]"