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Distribution of heavy metals contents in treated drinking water in southern Taiwan

Concentrations of As, Al, and other heavy metals (Cr¡BMn¡BFe¡BNi¡BCu¡BZn¡BGa¡BSe¡BSr¡BAg¡BCd¡BIn¡BSb¡BBa¡BHg¡BTl¡BPb¡BU) were measured in drinking waters in southern Taiwan. The analysis, using high resolution inductively coupled plasma mass spectrometry, indicated that concentrations of all elements were generally far below the maximum allowed concentration. The species of distribution of concentration were showed as follows (1) lower than 1£gg/L are Pb¡BTl¡BHg and Cd , (2) lower than 10£gg/L are Ni¡BGa¡BAs¡BSe¡BAg¡BIn¡BSb and U, (3) lower than 100£gg/L are Cr¡BCu¡BZn and Mn, (4) lower than 1000£gg/L are Al¡BFe¡BSr and Ba. Above results indicated that the concentrations of heavy meatals mostly are lower than Drinking Water Standard, except that Fe.
The average removal index of advanced treatment process is 0.94 which is lower than 4.3 of conventional treatment process. It shows that the removal ability of advanced treatment process for heavy metals is higher than that of conventional treatment process.
In addition Al¡BMn¡BFe¡BSr and Ba are the major heavy metals both in surface water and groundwater.

Identiferoai:union.ndltd.org:NSYSU/oai:NSYSU:etd-0113110-184033
Date13 January 2010
CreatorsChen, Shu-chin
ContributorsChung-Bang Chen, Chin-Huang Weng, Jie-Chung Lou, Shui-Jen Chen
PublisherNSYSU
Source SetsNSYSU Electronic Thesis and Dissertation Archive
LanguageCholon
Detected LanguageEnglish
Typetext
Formatapplication/pdf
Sourcehttp://etd.lib.nsysu.edu.tw/ETD-db/ETD-search/view_etd?URN=etd-0113110-184033
Rightswithheld, Copyright information available at source archive

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