Complexing Capacity of River Water
1982 Volume 43 Issue 4 Pages 272-274
Details
1982 Volume 43 Issue 4 Pages 272-274
Complexing capacity of waters of Iwaki River, Aomori Pref. was determined Using SASAKI'S method (1978).This method consists of the dissolution of equivalent copper (II) oxide with chelating agents to be determined and the subsequent spectrophotometry of dissolved copper (II) with sodium diethyl-dithiocarbarnate (Na·DDTC).
Complexing capacity of river waters increased from the upper to the lower reaches of Iwaki River, and concentrations from 0.3×10-7 to 7.1×10-7M for non-filtered samples were observed. But the concentrations for filtered samples by nuclepore filter (pare size : 0.4μm) were comparatively constant. These findings suggested that complexing capacity of river waters resulted from the wastewater pollutants, especially the suspended or particulate matters larger than 0.4μm. However, whether these matters are the origin must be studied in detail in the future.
