Metal Agents References
As III Bioremediation Bacteria, Sporosarcina, Ginsengisolicrs.Concupto 50mM As [35]
  E. crassipes600mg As/ Ha +lemna minor  
Heavy metals Banana and orange peel [36]
  5-25mg/l  
  Pb> Ni2+  
Complete water purification including microbial decontamination Ultrapurification [27]
As (III) Stenotrophomonas sp. MM-7(8.8mg/kg) [37]
  via arsenite oxidase  
As(III) Arsenic resistant microbe belongs to proteobacterium [38]
  Conc. 100mM  
  Others metals also purified like Ni, Zn,Cu, Pb, Co  
Fe+3 Electrocogulation [39]
  25mg/L  
As(III)+ microbial decontamination Carbon nanotube107 CFU/ml [40]
Table 1: Some Reliable water decontamination methods.