Table 4.3 illustrated the result of hydrogen peroxide of Day 0 and Day 7 in Cattail, Vetiver grass, Reed grass and Bird of paradise between 2 conditions of Acetaminophen concentration in synthetic wastewater. At 106 ng/L and 103 ng/L of Day 0 and Day 7 found that the highest hydrogen peroxide was found in Bird of paradise as follows: 49.6321and 72.3429 mmol/L, 67.0627 and 110.2153 mmol/L which was followed by reed, vetiver and cattail.