EFFECTIVENESS OF LAUNDRY WASTE TREATMENT WITH CHRYSOPOGON ZIZANIOIDES LASTRI ROSALIN, SYAFRUDIN RAHARJO AND RIMA HERLINA S. SIBURIANAbstract The increase in the laundry industry has an impact on the environment if the laundry liquid waste is not managed properly. Laundry waste generally contains high concentrations of sodium, boron, ammonia, nitrogen, surfactants and phosphates. Therefore, it is necessary to consider the right method in reducing the dangers posed by the waste from the laundry. Plants are agents that can reduce harmful pollutants in nature, one of which is Chrysopogon zizanioides L grass. The aim of the study was to determine the effectiveness of phosphate absorption using C. zizanioides grass with four different concentration treatments. The results of this study indicate that the use of C. zizanioides grass has an effect on the efficiency of reducing phosphate levels in laundry waste. Besides, the concentration of laundry waste also affects the growth of C. zizanioides grass, where the higher the concentration given, the smaller the growth of root and leaf length. The rate of removal of phosphate levels in waste is the largest or best in the K 100 treatment. |