3.1.1. Comparison of flocculating ability of extracted bio-flocculant
with literature results
The flocculating ability of the okra bio-flocculant extracted in
this study was compared with other work that studied the application
of okra bio-flocculants on different types of wastewater
treatment. The comparison is displayed in Supplementary Table S3.
In other studies it was noted that the treatment process may
require the addition of coagulant or pH adjustment, and require
long treatment times in order to obtain good flocculating
performance. For treatment of solutions low in SS or TU the
negative colloidal particles are generally well dispersed, and hence
a coagulant is required. In many cases, pH adjustment is needed to
achieve the isoelectric point for formation of flocs (Chong, 2012).