The electrocoagulation with zeolite addition was used to treat compost leachate. The effects of
different current densities and zeolite particle sizes on electrode dissolution, electrode surface
condition, and removal efficiency were investigated. The surface of the electrodes was analysed
by optical microscope, while the consumption of the aluminium electrodes was investigated by
weighing. The results confirmed that the removal efficiency could be improved by conducting the
experiment at higher current densities, but the electrodes used were significantly more damaged.
Significant damage was also observed on the electrode used in the experiment with larger zeolite
particles, which can be related to the stronger abrasion effect.
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