It is evident fromsurvey that new adsorbents andmembrane filtration are themost frequently stud-
ied and widely applied for the treatment of metal-contaminated wastewater. However, in the near
future, the most promising methods to treat such complex systems will be the photocatalytic ones
which consume cheap photons from the UV-near visible region. They induce both degradation of
organic pollutants and recovery of metals in one-pot systems.