A method for treating {TAIL ~ heavy metals} which comprises adding {HEAD ~ the heavy metal treating agent} 25 to a waste water containing at least one heavy metal, and stirring the resulting mixture 
A method for treating { TAIL ~ heavy metals } which comprises adding { HEAD ~ the heavy metal treating agent } 25 to a waste water containing at least one heavy metal , and stirring the resulting mixture
OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH