The second remediation method is phytoremediation, where living A. pinnata is suspended on the surface of the wastewater. A. pinnata was primarily studied due to its high tolerance to environmental pollutants, and ability to hyperaccumulate heavy metals. Phytoremediation of industrial wastewater containing heavy metals (such as zinc, lead, chromium, mercury, cadmium, copper, arsenic) as well as organic dyes such as methyl violet 2B and malachite green are reported in literature. A.pinnata is also reported to be useful for treating the wastewater (remove nitrogenous waste and phosphorus) of poultry farms.
