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研究生:楊進國
研究生(外文):Jinn-Gwo Yang
論文名稱:生物硝化對消毒副產物生成之影響
論文名稱(外文):Effect of Biological Nitrification on the Formation of Disinfection By-products
指導教授:葉宣顯
指導教授(外文):Shiuan-Shean Yeh
學位類別:碩士
校院名稱:國立成功大學
系所名稱:環境工程研究所
學門:工程學門
學類:環境工程學類
論文種類:學術論文
論文出版年:1994
畢業學年度:82
語文別:中文
論文頁數:118
中文關鍵詞:溴鹽生物硝化臭氧溴酸根
外文關鍵詞:BromideBiological NitrificationOzoneBromate
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鳳山淨水廠主要供應大高雄地區飲用水,其原水主要抽自東港溪表面水及
高屏溪伏流水。其中東港溪表面水因中上游養豬、養鴨、社區污水及工業
廢水之污染,氨氮及有機物含量較高,而高屏溪伏流水則因受海水入侵之
影響,有水質鹽化之問題,致所含溴鹽濃度較高。因此鳳山淨水廠原水之
水質受這兩股水所佔比列之影響。  本研究取鳳山淨水廠之原水及設於
淨水廠內模型生物硝化槽之處理水,利用需臭氧瓶進行臭氧化試驗,比較
在不同臭氧加量、溴鹽濃度、pH值及接觸時間下,處理水中殘餘臭氧、溴
酸根及有機參數值等之變化關係。  研究結果顯示,生物硝化槽可去除
還原性物質,故生物硝化槽出流水較之原水於臭氧化時易有臭氧殘餘且較
易使A254值降低,但亦較易生成溴酸根。另外在高溴鹽濃度、高殘餘臭氧
、高pH值及長接觸時間下均有利於溴酸根之生成。同時硝化處理水在經臭
氧化及後氯程序所生成之三鹵甲煩 (THM)、鹵化醋酸(HAA)及其生成潛能
均較原水者低,且原水及硝化處理水除了THMFP隨臭氧加量先增後降外,
THM、HAA、HAAFP皆呈下降趨勢。當溴鹽濃度增加時鹵化有機物中含溴物
種量增加總量亦增加,及pH增加時THM、THMFP亦隨之增加。
Feng-San Water Treatment Plant (FSWTP) is the major public
water supplier for Greater Kaohsiung area. Its raw water mainly
come from surface water of Tung-Kang River and is supplemented
by ground water pumped from under the bed of Kao-Ping River. In
this research,the source waters came from both the raw water of
the FSWTP and the effluent from a pilot-scale pack-bed
biological nitrification column set up inside the FSWTP. Both
waters were sujected to batch ozone oxidation using ozone
demand flask. The effect of ozone dosage,bromide concentration,
pH value and cotact time on the concentrations of residual
ozone,bromate, and other organic surrogate parameters of the
ozonated water were studied. The results indicate that: compare
to raw water,nitrified water usually has higher residual ozone,
lower A254,and also higher bromate concentrations at same ozone
dosage,as reducing materials could be removed during the
biological nitrification process. High bromide,residual ozone,
pH value,and long contact time could facilitate the production
of bromate. When both raw water and the nitrified water were
subjected to ozonation and subsequent chlorination,the
trihalomethanes (THM),haloacetic acids (HAA), and their
formation potentials of the treated water of the latter were
lower than those of the former. And all the data indicated that
THM,HAA,and HAAFP reduced with increasing ozone dosages, except
THMFP which could increase at low ozone dosage,and subsequently
reduce at higher ozone dosage. Furthermore,higher bromide could
not only increase the total amount of halogenated organics,but
also the proportion occupied by the brominated species. And THM
and THMFP concentrations were found to be increased with
increasing pH value.
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