Akademik Veri Yönetim Sistemi
BULGARIAN CHEMICAL COMMUNICATIONS, cilt.56, sa.3, ss.1-7, 2024 (Scopus)
This study involved the use of
ozonation to decrease the content of a commercial basic dye, Basic Blue 41
(BB41), in synthetically produced wastewater. The optimization of this process
was examined by assessing the chemical oxygen demand (COD) outcomes.
Experiments were conducted in a 7-L reactor utilizing a batch bubble column of
laboratory size. This study focused on investigating the optimal operating
conditions by examining experimental factors such as pH, ozone dose, and
reaction time. At pH 10, the COD of the basic dye wastewater decreased by
79.82%. Additionally, a significant reduction in color took place within a
period of 9 min. The process of ozone depletion in the reaction medium
continued for 16 min, and most of the degradation processes (94.56%) were
successfully completed during this time. The ozonation kinetics were
investigated and found to fit pseudo-first-order. The research showed that the
rate constant exhibited a positive correlation with the applied ozone dosage
and basic pH conditions and showed a logarithmic decrease with the initial dye
concentration. These findings indicate that ozonation is more efficient for
basic dyes when conducted under alkaline pH conditions than under acidic or
neutral pH conditions.