heavy metal ion
6.OPTIMIZATION CF SEPARATION CONDITIONS FOR HIGH PERFORMANCE ION EXCHANGE CHROMATOGRAPHY AND FAST CONTINUOUS DETERMINATION OF TRACE HEAVY METAL IMPURITIES IN NOBLE METALS
7.The progress onstudy results andinfluence factors of adsorption process toremoval heavy metal ions using activated carbonwere summarized. The heavy metal ions are as follows : Cr(Ⅵ),Cu2 +,Zn2 +,Cd2 +,Pb2 +,Mn2 +,Hg2 +and the mixture of several kinds of ions mentioned above. The adsorption mechanisms were also discussed,to accelerate the develop of absorbing metallic ion of activated carbon.
8.Rainwater is not clean water, because adulterated air pollution content, still have the pollution of the ground and roofing, nitrogen of ion of yin and yang, heavy metal, ammonia often is contained to wait in collection rainwater, a lot of people fear such water passes simple processing, whether humanness is drinkable.

