... time of more than one hour. The reduction rates of TOC and TN ranged from 20 % to 40 %. The reduction rate of TP ranged from 20 % to 90 %. The reduction rates of metals (Cr, Fe, Pb) ranged from ... that the behavior of TP differs from that of TOC and TN in the equipment. The CVs in heavy metals were larger than those of TOC, TN and TP. Especially, the CV of Fe changed from 0.73 at IN ... adsorption and filtration because of the structure of this equipment. TOC and TN were analyzed by using a TOC analyzer (TOC-V, Shimadzu, Japan), DOM was less often analyzed by using a spectrophotometer...