Advantages over biological treatment

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 Biological Systems ZVI Blue™ Media
 Can handle start-stop operations  ×
 Unaffected by water temperature changes    ×
 Consistent year-round functionality    ×
 Microbes can die and require months for re-seeding  ×  
 Creates Selenium pellets requiring further treatment  ×  
 Can create organo-selenium harmful to aquatic life  ×  
 Traditionally used for nitrate removal  ×  
 Media can be replaced & disposed in regular landfill    ×
 Requires removal of dissolved iron in the effluent    ×
 Installations can be modular and transportable    ×