A process for removing chromium and {HEAD ~ other heavy metals} including cobalt, nickel, {TAIL ~ zinc}, cadmium, manganese, copper, and lead, from groundwater 1 by separating said heavy metal hydroxide precipitates from said groundwater in a settling tank 
A process for removing chromium and { HEAD ~ other heavy metals } including cobalt , nickel , { TAIL ~ zinc } , cadmium , manganese , copper , and lead , from groundwater 1 by separating said heavy metal hydroxide precipitates from said groundwater in a settling tank
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