The Effectiveness of Using Hyacinth Plant As Phytoremediation Agent On Paper Industry Liquid Waste

Increasing number of industry in Indonesia lead to produce large amount of waste. If the waste is not treated by phytoremediation, it will pollute the environment. One method to overcome this problem is phytoremediation process. Phytoremediation is the use of plant to reduce pollutants in both organic and inorganic compounds as well as to remove the contaminants. This study aims to evaluate the effectiveness of water hyacinth plant in absorbing paper industry liquid waste. Observations were made with phytoremediation of time 0, 7, 14, and 21 days with 2 treatment ie treatment covered by plastic and treatment not covered by plastic and by 4 concentration dilution ie 100% liquid waste, 75% liquid waste, 50% , and 25%. The result should that after 21 days of water hyacinth can reduce the COD level with the highest efficiency level of 1.63%, then BOD of 4.29%.