| dc.description.abstract | Liquid waste industrial of wheys contain of many complex organic compounds such
as proteins, carbohydrates, fats and oils. Based on the results of field studies on
Industry Hall of liquid waste industrial characteristics of whey in Medan, it is known
that liquid waste industrial of wheys contain average BOD (4583 mg/l), COD (7050
mg/l), TSS (4743 mg/l ) and oil or fat (26 mg/l ) at pH 6.1. Therefore, the whey
waste water must be treated before it is discharged into the environment to reduce the
contaminants that accompany the waste. One alternative that can be used as a
coagulant is moringa seed powder. This study used of moringa seed powder with a
water content of 9 %. Variations of coagulant dosage which are used 2000, 3000,
4000, 5000 mg/200 ml liquid waste industrial of whey, coagulant particle size 50 and
70 mesh with the initial pH about 4. The optimum deposition time is obtained 60
minutes with 81.71 % reduction in turbidity, TSS 77.42 %, and 64.10 % COD in
5000 mg/200 ml dosage of coagulant and coagulant particle size of 70 mesh with the
final pH about 4, the reductions of turbidity, TSS and COD were obtained over 50
%.it can be concluded that moringa seeds can be used as an effective coagulant as an
whey waste alternative treatment. | en_US |
