Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/5534
DC FieldValueLanguage
dc.contributor.advisor謝永旭zh_TW
dc.contributor.advisorYung-Hsu Hsiehen_US
dc.contributor.author葉信言zh_TW
dc.contributor.authorYeh, Hsin-Yenen_US
dc.date2004zh_TW
dc.date.accessioned2014-06-06T06:35:00Z-
dc.date.available2014-06-06T06:35:00Z-
dc.identifier.urihttp://hdl.handle.net/11455/5534-
dc.description.abstract本研究以濁水溪沖積扇平原為主之大彰化地區淨水場之實場錳砂為填充濾料,除了分析其特性外,並以模擬濾床之管柱試驗,探討不同操作條件與物種濃度條件之影響,以期能找出最佳操作條件,提供日後實場之操作與設計參考。 在實場錳砂表面特性分析方面,從顯微結構分析中,可觀察到實場錳砂表面粗糙不平,且有許多錳氧化物叢集於表面,導致其表面佈滿孔隙;而從X光繞射分析結果上發現,覆膜在石英砂表面的錳氧化物並非由單一物種組成,其物種包括氧化錳(MnO2)、三氧化二錳(Mn2O3)及氫氧化錳(Mn(OH)4)等三種。 在背景實驗方面,以石英砂為填充濾料之實驗中顯示,錳砂去除錳離子的主要機制並不是物理性的濾除,而是吸附;在鹼性條件下,約有50%左右的Mn2+因氧化產生沉澱物而去除,並有助於石英砂加速形成錳砂。以攪拌時間為控制變因的連續流實驗中,發現攪拌時間愈久有助於錳氧化物的形成,但整體去除率方面差異不大;在pH為控制變因的實驗中,pH的上升有利於Mn2+的去除,當pH調至9以上,去除率可達100%;在濾層深度為控制變因的實驗中,當濾層深度加倍時,其貫穿時間也跟著加倍,彼此呈現一線性關係;而當進流濃度減少時,其去除率也隨之上升,推測原因為錳砂表面的吸附位址有限,導致高濃度的Mn2+無法被完全去除;在流量為控制變因的實驗中,流量越低其處理效果就越好,當流速高於0.174cm/s,則所造成的影響趨於一定。zh_TW
dc.description.abstractThis investigation used manganese-coated sand as filter material. This sand was taken from Zhang-Hua water treatment plant on the alluvial plain of the Zhuo-Shui river. The effect of various operation conditions was discussed by analyzing the characteristics of sand and simulating the filter bed. Scanning Electron Microscope (SEM) and X-Ray Diffractionmetter (XRD) were used to investigate the surface properties of the coated layer.The results indicated that manganese-coated sand has more pores because of the attachment of manganese oxide. Three primary forms of minerals: Mn2O3, MnO2, Mn(OH)4. Using quartz sand as the filter material indicated that the primary removal mechanism is sorption and there is 50% of Mn2+ removed from the water at pH=9 by oxidation and precipitation. There were five parameters discussed in the column tests. The results of column tests indicated when pH and depth of filter bed increased, the removal efficiencies increased. The removal efficiencies decreased when stirring time, initial concentration and flow rate decreased.en_US
dc.description.tableofcontents第一章 前言.............................................1 1-1 研究緣起...........................................1 1-2 研究目的與內容.....................................2 1-2-1 研究目的.......................................2 1-2-2 研究內容.......................................2 第二章 文獻回顧.........................................3 2-1 錳之來源...........................................3 2-2 錳之物化特性.......................................4 2-3 錳之水化特性.......................................5 2-4 錳氧化物之種類及結構..............................10 2-5 錳對人體的影響與飲用水及工業用水水質之規定........10 2-6 金屬氧化物表面特性................................13 2-6-1表面酸鹼性質...................................13 2-6-2 金屬氧化物與陰、陽離子之表面錯合反應..........17 2-7 水化金屬氧化物對重金屬吸附........................20 2-8 溶解性重金屬去除之方法............................21 2-9 過濾理論..........................................24 2-9-1 慢濾法........................................25 2-9-2 快濾法........................................26 第三章 實驗設備與方法..................................29 3-1實驗架構與流程.....................................29 3-2 實驗材料..........................................30 3-3 實驗設備..........................................31 3-4 背景試驗..........................................32 3-4-1 採樣程序的確定................................32 3-4-2 空床試驗......................................35 3-4-3 去除機制的釐清................................35 3-5 管柱實驗..........................................36 3-5-1 攪拌時間的影響................................36 3-5-2 pH值的影響....................................36 3-5-3 濾層深度的影響................................36 3-5-4 初始濃度的影響................................37 3-5-5 流速的影響....................................37 3-6 錳砂之來源........................................37 3-7 人造錳砂表面分析..................................37 3-7-1 界達電位分析..................................37 3-7-2 X光繞射分析(XRD)..............................38 3-7-3 表面型態分析..................................41 3-7-4 比表面積及孔隙大小測定........................41 3-7-5 濾砂之表面元素分析............................42 3-8 錳離子之測定......................................43 3-8-1 總錳的測定....................................43 3-8-2 二價錳離子的測定..............................44 第四章 結果與討論......................................45 4-1 實場濾砂表面分析及形態鑑定........................45 4-1-1 石英砂之型態..................................45 4-1-2 實場錳砂之形態................................48 4-2 實場濾砂表面顯微結構之觀察........................48 4-2-1 石英砂表面結構之觀察..........................48 4-2-2 實場錳砂表面結構之觀察........................50 4-3 實場濾砂之界達電位................................55 4-4 實場濾砂表面之元素分析............................55 4-5 比表面積與孔隙直徑大小............................57 4-6 背景實驗..........................................58 4-6-1 採樣程序的確定................................58 4-6-2 空床實驗......................................58 4-6-3 去除機制的釐清................................61 4-7 攪拌時間對錳砂濾床去除錳離子之影響................63 4-8 pH值對錳砂濾床去除錳離子之影響....................65 4-9 濾層深度對錳砂濾床去除錳離子之影響................67 4-10 錳離子初始濃度對錳砂濾床去除錳離子之影響.........69 4-11 流速對錳砂濾床去除錳離子之影響...................71 第五章 結論與建議.......................................74 5-1 結論..............................................74 5-2 建議..............................................75 參考文獻................................................77 附錄一..................................................82 附錄二..................................................83 附錄三..................................................84 附錄四..................................................85zh_TW
dc.language.isoen_USzh_TW
dc.publisher環境工程學系zh_TW
dc.subjectmanganese-coated sanden_US
dc.subject實場錳砂zh_TW
dc.subjectMn2+en_US
dc.subjectcolumn testen_US
dc.subjectdepth of filter beden_US
dc.subjectinitial concentrationen_US
dc.subjectstirring timeen_US
dc.subjectflow rateen_US
dc.subject錳離子zh_TW
dc.subject管柱試驗zh_TW
dc.subject濾層深度zh_TW
dc.subject進流濃度zh_TW
dc.subject攪拌時間zh_TW
dc.subject流速zh_TW
dc.title以錳砂濾床去除地下水中錳離子之探討zh_TW
dc.titleThe study of removal for manganese ion in groundwater by using filter bed packed with manganese-coated sanden_US
dc.typeThesis and Dissertationzh_TW
item.openairetypeThesis and Dissertation-
item.fulltextno fulltext-
item.cerifentitytypePublications-
item.grantfulltextnone-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.languageiso639-1en_US-
Appears in Collections:環境工程學系所
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