11. Uluslararası İstanbul Bilimsel Araştırma Kongresi, İstanbul, Türkiye, 15 Ekim 2022, ss.109-116
Applicability of environmentally
friendly coagulants in wastewater treatment has become a new research topic in
recent years. Chitosan, a non-toxic, biodegradable natural polymer, is widely
used for this purpose. In this study, color removal with chitosan coagulation
was studied in wastewater of two different industries. Experimental studies
were designed according to the Box-Wilson experimental design method. This
method was used to produce statistically reliable results for color removal by
chitosan coagulation and also to determine optimum conditions that optimize
color removal efficiencies.
First, experiments were made with
dyeing wastewater. Different dye concentrations (50-300 mg/l) and different
chitosan concentrations (50-200 mg/l) were selected. Jar test was performed to
determine the conditions giving the highest color removal efficiency. The
second industry examined within the scope of the study is the dairy industry.
The jar test was applied by adding chitosan at different concentrations (30-300
mg/l) to the cheese whey obtained from the dairy industry. The chitosan
concentration and the precipitation time, at which the maximum color removal
efficiency was obtained, were determined and presented within the scope of the
study.