“…The plant has fast growth, large biomass, and tolerance for many metals/metalloids such as arsenic (Alvarado et al, 2008), silver (Pinto et al, 1987), cadmium (Agunbiade et al, 2009), chromium (Mishra and Tripathi, 2009), copper (So et al, 2003), iron (Jayaweera et al, 2008), nickel (Hadad et al, 2011), lead (Smolyakov, 2012), and zinc (Lu et al, 2004) as well as organics such as naphthalene (NesterenkoMalkovskaya et al, 2012), ethion (Xia and Ma, 2006), and phenol (Nora and Jesus, 1997). Water hyacinth has also been used to improve the water quality of pulp and paper mill effluent (Yedla et al, 2002), wastewater treatment systems (Delgado et al, 1995), and dairy waste water (Trivedy and Pattanshetty, 2002). It can also reduce the level of heavy metals from acid mine drainage water (Falbo and Weaks, 1990) and petroleum refinery effluents (Ismail and Beddri, 2009), which makes it a good candidate for phytoremediation.…”