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The batik industry produce chromium (Cr) waste. The chromium can cause acute dan chronic poisoning in humans and environmental pollution. Pistia stratiotes L is a phytoremediator plant that can bind heavy metals to the root tissue. Analyze the differences of chromium levels wih Pistia stratiotes L as phytoremediation is the purpose of this study. This research is a true experiment with only post control group design and uses a completely randomized design method with six repetitions. The sample were control group 0 gr/6L (K) and a treatment group of 300 gr/6L (P1), 350 gr/6L (P2) and 400 gr/6L (P3). Batik liquid waste was diluted using aquades in 1:5 ratio, then contacted with Pistia stratiotes L. for 10 days. The pH and temperature were measured. Data were analyzed using data normality, data homogenity and continued with one way Anova statistical test. The results between K with P1, P2, P3 show there is significant differences (P1=0.007; P2= 0.000 dan P3= 0.000).

Phythoremediasi Chromium Total (Cr-T) menggunakan kayu apu (Pistia stratiotes L.) pada limbah cair batik