Batik waste can increase water characteristics, such as turbidity, color
and total suspended solids (TSS). Thus, an efficient technique for separating
Batik from the liquid to decrease these characteristics is needed. The aim of
the current study was to understand the results of flotation using electrolysis
and to investigate the bubble characteristics that influence the results of the
flotation of Batik waste. Flotation studies have been conducted using
electrolysis to produce bubbles to separate batik synthetic dye from the
liquid. Research conducted with 316L stainless steel electrodes, inside a 100
cm tall acrylic pipe with an inner diameter of 8.4 cm and a voltage variation
of 10, 15 and 20 V. Batik waste was mixed with distilled water. Commercial alum
powder [aluminum sulfate, Al2(SO4)3.14H2O,
that is 17% Al2O3] as the reagent was added to coagulate
Batik waste in a ratio of 1 gram per 10 ml of Batik waste. The results showed
that flotation of Batik waste can be used to separate Batik waste with the
addition of alum. Alum was shown to be capable of acting as a collector in this
type of waste separation. The results showed that flotation using electrolysis
could be an effective method for reducing turbidity, color and TSS.
