PEMANFAATAN EKSTRAK BIJI KELOR (Moringa oleifera Lamk) DENGAN KULIT ARI SEBAGAI KOAGULAN ZAT WARNA REAKTIF DALAM LARUTAN MODEL LIMBAH CAIR INDUSTRI KAIN BESUREK

The aim of this research was to determine the ability of merunggai seed powder extract with shelled and non-shelled as a natural coagulant to reducing reactive colours concentration in liquid waste model of industrial besurek. In this research, for the first time merunggai seed powder with shelled and non-shelled was extracted with powder percentage variation of 3%, 5% and 7%, while period process of extraction variation were 30 minutes, 45 minutes and 60 minutes at the temperature of extraction 60 oC. Then merunggai seed extract with shelled and non-shelled was used as coagulant to reducing  reactive  colours  concentration  in  model  liquid.  The  result  showed  that optimum  condition  for merunggai  seed  powder  extract  with  shelled  is 5% powder percentage with period process of extraction during 45 minutes for reactive colours blue, red and yellow. The decrease of reactive colour content were 491,63 mg/mL, 490,02 mg/mL and 466,60 mg/mL respectively.  Keywords: Moringa oleifera Lamk, coagulation, extraction, reactive colours