(18.206.177.17) 您好!臺灣時間:2021/04/23 05:37
字體大小: 字級放大   字級縮小   預設字形  
回查詢結果

詳目顯示:::

我願授權國圖
: 
twitterline
研究生:邱金窗
研究生(外文):Chiou, Jin-Chuang
論文名稱:脫硝污泥對高濃度有機氮工業廢水之生物分解特性研究
論文名稱(外文):Characterization of biodegradation industrial wastewater containing high-strength of organic nitrogen compounds using denitrifying bacteria
指導教授:鄭幸雄鄭幸雄引用關係
指導教授(外文):Sheng-Shung Cheng
學位類別:碩士
校院名稱:國立成功大學
系所名稱:環境工程學系
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:1996
畢業學年度:84
語文別:中文
論文頁數:4
中文關鍵詞:流體化床有機氮氨化生物分解特性脫硝
外文關鍵詞:fluidized bedorganic nitrogendeaminationcharacterization of biodegradationdenitrification
相關次數:
  • 被引用被引用:8
  • 點閱點閱:148
  • 評分評分:系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔系統版面圖檔
  • 下載下載:0
  • 收藏至我的研究室書目清單書目收藏:0
石化工業排放廢水量大,廢水中成份複雜且多含抑制性難生
物分解毒性物質,極易造成環境生態保育不平衡。近年來,石化
廢水除原來所重視的有機物去除外,廢水中所含氮系污染物,亦
可能造成環境中營養物質過多,天然水域優養化,二度污染環
境,因此逐漸引起重視與研究。
本研究所選擇的ABS樹脂製程廢水,含有高濃度的化工合成
有機氮化物,一般生物方法及物化方法不易徹底去除,因此分別
以延長式活性污泥法,懸浮性與活性碳固定生物膜兩種硝化脫硝
串連程序等三種不同生物系統進行研究。研究結果除以一般有機
物去除效率作為指標外,亦增加有機氮氨化與氮化物的去除效率
之探討,以達污染物完全去除的目的。
比較三種不同的生物處理程序之研究成果顯示,懸浮性無氧
脫硝及好氧硝化串連程序,比延長式好氧生物處理程序承受較高
的污染物負荷量與穩定的處理效率。於最適化的操作條件下,不
僅對於有機物及氮化物的去除,可得到84%、89%與80%的
COD、總凱氏氮與總氮之高去除率,且可獲得較佳的有機物去
除、有機氮氨化與氮化物去除等多重目的,以達到徹底去除廢水
中污染物的目的。另一方面,不論於水力停留時間與可處理之污
染物負荷量與其去除效率上,固定生物膜系統皆較懸浮生物系統
為佳。脫硝流體化床內之生物菌體於長期馴養下,對於ABS製程
廢水中所含有機氮化物具有良好裂解氨化能力,並有極佳的脫硝
能力,單位脫硝槽體積之最高有機氮氨化量達0.82 kg N/m3/day
,並且可達到 6.27kg COD/m3/day與1.71kg NO3--N/m3/day的污
染物去除量。
此為目前操作上的極限,亦可為後續工程設計參考的依據。
另一方面,ABS製程廢水經脫硝流體化床處理後,既使生物
膜程序延長生物停留時間殘留有機物成分仍以大分子量有機物為
主,如何增進此部份有機物的生物分解能力,為必需加強的研究
重點。
Characterization of Biodegradation Industrial Wastewater
ContainingHigh-strength of Organic Nitrogen Compounds Using
Denitrifying BacteriaJin-Chuang Chiouadvisor : Sheng-Shung
ChengABSTRACTManufacturing processes of petrochemical and fine
chemical industry produceda large quantity of wastewater, which
consisted of various species ofbiologically refractory and
inhibitory organic-nitrogen compounds. In theconventional
wastewater treatment plant, extended aeration and
chemicaltreatment process were designed to remove the organic
carbon in spite ofnitrogenous pollutants. So, high strength of
nitrogenous compounds in theeffluent stream had major
deleterious effects on surface water, aquatic toxicityand
eutrophication. Therefore, simultaneous removal of the organic
carbon andnitrogenous compounds should be enhanced in the
treatment process.Acrylic resin materials of acrylonitrile,
butadiene and styrene (ABS) aremanufactured in a world-graded
company in Taiwan. This manufacturingwastewater contributed to a
high TKN/COD ratio which indicated the refractorycharacteristics
of biodegradation. Thus, two kinds of biological
treatmentprocess were employed to treat ABS manufacturing
wastewater, such asextended activated sludge process and A/O
process combined with anoxicdenitrification and oxic
nitrification. In order to enhance the nitrogenousremoval, two
types of bioreactor, suspended and fluidized bed reactor were
usedin this study.The results indicated that A/O process was
more efficient to remove thenitrogenous compounds in the ABS
resin manufacturing wastewater than theextended aerobic process.
The A/O process promoted the average removalefficiencies of COD,
TKN and total nitrogen from 81%, 79% and 64% to 84%,89% and 80%
respectively, in comparison with the extended activated
sludgeprocess. On the other hand, the GAC fluidized bed reactor
with higherconcentration of biomass and higher organic loading,
achieved higher removalefficiencies of COD and organic nitrogen
and shorted the hydraulic retentiontime than that of the
suspended sludge bioreactor. After a long-term cultivationof
biofilm, the denitrifying bacteria in the anoxic fluidized bed
obtainedhigher volumetric loading and higher efficiency of
deamination. The experimentalresults showed that 6.27 kgCODr/m3-
day of organic loading, 1.71kgNO3--N/m3-day of nitrate loading
and 0.82kgN/m3-day of deamination loading wereperformed
successfully in the anoxic GAC fluidized bed.Meantimes, the
analytic results of GPC chromatography indicated that oforganic
compounds with large molecular weight were found in the effluent
of theanoxic fluidized bed. Such refractory organic compounds
should be degradedwith some enrichment in the further study.
QRCODE
 
 
 
 
 
                                                                                                                                                                                                                                                                                                                                                                                                               
第一頁 上一頁 下一頁 最後一頁 top
無相關期刊
 
系統版面圖檔 系統版面圖檔