The aim of this research is to build up the model of trace metal phase speciation in Erh-Jen estuarine. Colloidal species were separated from the dissolved fraction by using cross-flow filtration technique. This allowed us to study the distribution of trace metal¡¦s phase speciation and the relationships between: (1) seasonal variation and phase speciation of trace metal; (2) stational variation and phase speciation of trace metal; (3) the concentration of total and and speciations; (4) the prodution and removel of speciation in different salinity; (5) the flocculants and phase speciation of trace metal. The results will supply abundant information about colloidal metals that should be great benefit to the study of metal speciation of Taiwan waters in the future.
It is seriously polluted by trace metals in Erh-Jen estuarine. Iron has the highest concentration in river water, followed by nickel¡A manganese¡A zinc and copper. Station 3 which is located on San-Yen-Kung river is the most polluted.
Zinc, copper and iron exist in particulate phase predominately. Particle and truly dissolve phase are the major species of TOC¡Bmanganese and nickel. Contents of all the metals and TOC have significant linear correlation with their major species.
Zinc, copper and iron are found predominantly in colloidal fraction(1 kD~0.45£gm), averaging 54.9 ¡Ó19.3 %, 75.6 ¡Ó12.3 % and 72.5 ¡Ó28.0 %, respectively, of the filter-passing pool. TOC, manganese and nickel, resides primarily in the truly dissolved phase , averaging 63.2 ¡Ó11.5 %, 95.1 ¡Ó3.3 % and 72.0 ¡Ó23.9 %, respectively, of the filter-passing pool.
The linear correlation between salinity and TOC, zinc, copper, manganese, nickel and iron are not significant in this study.
| Identifer | oai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0808100-151610 |
| Date | 08 August 2000 |
| Creators | Yeh, Hsiao-chien |
| Contributors | none, none, none |
| Publisher | NSYSU |
| Source Sets | NSYSU Electronic Thesis and Dissertation Archive |
| Language | Cholon |
| Detected Language | English |
| Type | text |
| Format | application/pdf |
| Source | http://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0808100-151610 |
| Rights | not_available, Copyright information available at source archive |
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