德基水庫水質受天災事件及消毒副產物生成潛能變化之探討

The Investigation of the Significant Events Occurred and Disinfection by-product Formation Potential Profile in Te-Chi Reservoir

江彥霈(Yen-Pei Chiang) ； 洪詩涵(Shih-Han Hung) ； 王俊傑(Jun-Jie Wang) ； 沈佳俞(Chia-Yu Shen) ； 張鎮南(Cheng-Nan Chang)

《東海科學》 7期 (2005/07) Pp. 31-49

https://doi.org/10.29723/TS.200507.0003

摘要

本研究主要目的在於藉由調查德基水庫水體中天然有機物成分變化，探討歷年重大事件發生所造成的主要汙染與消毒副產物生成潛能間之關係。採集德基水庫原水，以三種不同樹脂XAD-8，AG-MP-50，IRA-93由水樣中分離萃取出七類不同有機物，其中疏水性有機物質為水體中消毒副產物的主要前驅物質。若親水性有機物質較多，則代表受生活污水污染嚴重，得知德基水庫優養化主要受民生污染較多，並以國外的例子和德基水庫做比較。
分析的項目包括：pH、溫度、DO、TDS、COD、DOC、導電度、硬度、鹼度、NH3-N、TTHMFP、HAAFP及AOXFP。希望藉由副產物生成情形，了解有機物反應特性變化及尋求適當的改善之道。
消毒副產物的生成潛能部份，腐植酸、黃酸有最高之三鹵甲烷生成潛能(TTHMFP)及鹵化乙酸生成潛能(HAAFP)之生成量。在吸附性鹵化有機物(AOXFP)方面以親水性物質其生成AOXFP的能力比部分疏水性物質還高。

關鍵字

天然有機物 ； 消毒副產物 ； 生產潛能 ； 三鹵甲烷 ； 鹵化乙酸

並列摘要

The objective of this study was to investigate the relationship among distribution of natural organic matter, significant happenings during recent years and disinfection by-products formation potential. We used three resins: XAD-8, AG-MP-50 and IRA-93 to extract seven species of NOM from eutrophic water sampled from Te-Chi reservoir. The results show hydrophobic fractions is the major precursor of trihalomethanes (THMs) in the water. When hydrophilic fractions increased, it implied the polluted by domestic wastewater. The eutrophication of Te-Chi reservoir was caused mainly by domestic wastewater, the results also compared with foreign cases.
The analysis items include pH, temperature, Dissolved oxygen (DO), Total dissolved solid (TDS), Chemical oxygen demand (COD), Dissolved organic carbon (DOC), conductivity, hardness, alkalinity, ammonia (NH3-N), Total trihalomethane formation potential (TTHMFP), haloacetic acid formation potential (HAAFP), and adsorbed organic halide formation potential (AOXFP). By observing the Disinfection by-products (DBPs) formation, we can realize the characteristic of NOM and find a proper way to remove them.
In disinfection by-products formation potential study, fulvic acids and humic acids have the highest quantity of TTHMFP and HAAFP. On the other hand, hydrophilic fractions have more quantity of AOXFP than hydrophobic fractions.

並列關鍵字

natural organic matter NOM ； disinfection by-products DBPs ； formation potential FP ； trihalomethane THM ； haloacetic acids HAAs