Trials and Tribulations of Testing an Organic Flocculant for Colour Removal

摘要

1.The additional tests performed were not able to reproduce the initial good results, and the reasons for this are still not known. 2.The evaluation of colour removal in a factory is highly complex and conclusions cannot be based on a single set of tests, as there are many factors to consider. 3.The scale of laboratory trials is usually too small (too much scatter) while factory trial conditions cannot be sufficiently controlled. rn4.The issue of whether to assess results in terms of percentage colour removal or number of colour units removed is very pertinent when dealing with juices of widely differing colours.