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完整後設資料紀錄
DC 欄位 | 值 | 語言 |
---|---|---|
dc.contributor.advisor | 駱尚廉(Shang-Lien Lo) | |
dc.contributor.author | Fang-Chih Chang | en |
dc.contributor.author | 張芳志 | zh_TW |
dc.date.accessioned | 2021-06-13T01:32:56Z | - |
dc.date.available | 2008-07-20 | |
dc.date.copyright | 2007-07-20 | |
dc.date.issued | 2007 | |
dc.date.submitted | 2007-07-17 | |
dc.identifier.citation | Abumaizar, R.J., Smith, E.H., 1999. Heavy metal contaminants removal by soil washing. J. Hazard. Mater. 70, 71-86.
Agelidis, T., Fytianos, K., Vasilikiotis, G., Jannakoudakis, D., 1988. Lead removal from wastewater by cementation Utilising a fixed bed of iron spheres. Environ. Pollut. 50, 243-251. Alvarez, E.A., Mochon, M.C., Jimenez Sanchez, J.C., Rodriguez, M.T., 2002. Heavy metal extractable in sludge from wastewater treatment planes. Chemosphere. 47, 765-775. Barona, A., Aranguiz, I., Elías, A., 2001. Metal associations in soils before and after EDTA extractive decontamination: implications for the effectiveness of further clean-up procedures. Environ. Pollut. 113, 79-85. Bell, C.F, 1997. Principles and applications of metal chelation, Oxford: Clarendon Press. Bosecker, K., 1997. Bioleaching: metal solubilization by microorganisms. FEMS Microbiol. Rev. 20, 591-604. Bruder-Hubscher, V., Lagarde, F., Leroy, M.J.F., Coughanowr, C., Enguehard, F., 2002. Application of a sequential extraction procedure to study the release of elements from municipal solid waste incineration bottom ash. Anal. Chim. Acta 451, 285-295. Bucheli-Witschel, M., 2001. Environmental fate and microbial degradation of aminopolycarboxylic acids. FEMS Microbiol. Rev. 25, 69-106. Chang, C.J., Liu, J.C., 1998. Feasibility of copper leaching from an industrial sludge using ammonia solutions. J. Hazard. Mater. 58, 121-132. Chang, C.Y., Chiang, H.L., Su, Z.J., Wang, C.F., 2005. A sequential extraction method measures the toxic metal content in fly ash from a municipal solid waste incinerator. J. Chin. Chem. Soc. 52, 921-926. Chen, T.C., Hong, A.P., 1995. Chelating extraction of lead and copper from an authentic contaminated soil using N-(2-acetamido)iminodiacetic acid and S-carboxymethyl-l-cysteine. J. Hazard. Mater. 41, 147-160. Cline, S.R., Reed, B.E., 1995. Lead removal from soils via bench-scale soil washing techniques. J. Envir. Eng., ASCE 121, 700-705. Di Palma, L., Ferrantelli, P., 2005. Copper leaching from a sandy soil: Mechanism and parameters affecting EDTA extraction, J. Hazard. Mater. B122, 85-90. Di Palma, L., Ferrantelli, P., Merli, C., Biancifiori, F., 2003. Recovery of EDTA and metal precipitation from soil flushing solutions, J. Hazard. Mater. B103, 153-168. Di Palma, L., Medici, F., 2002. Recovery of copper from contaminated soil by flushing. Waste Manage. 22, 883-886. Djokic, S.S., 1996. Cementation of copper on aluminum in alkaline solutions. J. Electrochem. Soc. 143, 1300-1305. Donmez, B., Sevim, F., Sarac, H., 1999. A kinetic study of the cementation of copper from sulphate solutions onto a rotating aluminum disc. Hydrometallurgy 53, 145-154. Elliott, H.A., Brown, G.A., 1989. Comparative evaluation of NTA and EDTA for extractive decontamination of Pb-polluted soils. Water Air Soil Poll. 45, 361-369. Ghestem, J.P., Bermond, A., 1998. EDTA extractability of trace metals in polluted soils: A chemical physical study. Environ. Technol. 19, 409-416. Glasser, F.P., 1997. Fundamental aspects of cement solidification and stabilization. J. Hazard. Mater. 52, 57-73. Gomez Ariza, J.L., Giraldez, I., Sanchez-Rodas, D., Morales, E., 2000. Metal sequential extraction procedure optimized for heavily polluted and iron oxide rich sediments. Anal. Chim. Acta 414, 151-164. Hansen, H.K., Pedersen, A.J., Ottosen, L.M., Villumsen, A., 2001. Speciation and mobility of cadmium in straw and wood combustion fly ash. Chemosphere 45, 123-128. Herck, P. V., Bruggen, B. V. D., Vogels, G., Vandecasteele, C., 2000. Application of computer modelling to predict the leaching behaviour of heavy metals from MSWI fly ash and comparision with a sequential extraction method. Waste Manage. 20, 203-210. Herck, P. V., Vandecasteele, C., 2001. Evaluation of the use of a sequential extraction procedure for the characterization and treatment of metal containing solid waste. Waste Manage. 21, 685-694. Hong, K.J., Tokunaga, S., Kajiuchi, T., 2000. Extraction of heavy metals from MSW incinerator fly ashes by chelating agents. J. Hazard. Mater. 75, 57-73. Hong, P.K.A., Li, C., Banerji, S.K., Regmi, T.J., 1999. Extraction, recovery and biostability of EDTA for remediation of heavy metal-contaminted soil. J. Soil Contam. 8, 81-103. Hong, P.K.A., Li, C., Banerji, S.K., Wang, Y., 2002. Feasibility of metal recovery from soil using DTPA and its biostability. J. Hazard. Mater. B94, 253-272. Huang, C. P., Hsu, M.C., Miller, P., 2000. Recovery of EDTA from power plant boiler chemical cleaning wastewater. J. Environ. Eng.-ASCE 126, 919-924. Kandpal, G., Ram, B., Srivastava, P. C., Singh, S. K., 2004. Effect of metal spiking on different chemical pools and chemically extractable fractions of heavy metals in sewage sludge. J. Hazard. Mater. 106, 133-137. Kedziorek, M.A.M., Bourg, A.C.M., 1996. Acidification and solubilisation of heavy metals from single and dual-component modelsolids. Applied Geochemistry 11, 299-304. Kedziorek, M.A.M., Bourg, A.C.M., 2000. Solubilization of lead and cadmium during the percolation of EDTA through a soil polluted by smelting activities. J. Contam. Hydrol. 40, 381-392. Kim, C., Lee, Y., Ong, S.K., 2003. Factors affecting EDTA extraction of lead from lead-contaminated soils. Chemosphere 51, 845-853. Kim, C., Ong, S.K., 1999. Recycling of lead-contaminated EDTA wastewater. J. Hazard. Mater. 69, 273-286. Ku, Y., Chen C.H., 1992. Removal of chelated copper from wastewaters by iron cementation. Ind. Eng. Chem. Res. 31, 1111- 1115. Lacal, J., da Silva, M.P., García, R., Sevilla, M. T.; Procopio, J.R., Hernández, L., 2003. Study of fractionation and potential mobility of metal in sludge from pyrite mining and affected river sediments: changes in mobility over time and use of artificial ageing as a tool in environmental impact assessment. Environ. Pollut. 124, 291-305. Li, Z., Shuman, L.M., 1996. Redistribution of forms of zinc, cadmium and nickel in soils treated with EDTA. Sci. Total Environ. 191, 95-107. Linn, J.H., Elliott, H.A., 1988. Mobilization of Cu and Zn in contaminated soil by NTA. Water Air Soil Poll. 37, 449-458. Lu, Y., Gong, Z., Zhang, G., Burghardt, W., 2003. Concentrations and chemical speciations of Cu, Zn, Pb and Cr of urban soils in Nanjing, China. Geoderma 115, 101-111. Maiz, I., Arambarri, I., Garcia, R., Millan, E., 2000. Evaluation of heavy metal availability in polluted soils by two sequential extraction procedures using factor analysis. Environ. Pollut. 110, 3-9. Makhloufi, L., Saidani, B., Hammache, H., 2000. Removal of lead ions from acidic aqueous solutions by cementation on iron. Water Res. 34, 2517-2524. Martell, A.E., Smith, R.M., 1989. Critical stability constants, Amino Acids Vol. 1 Plenum, New York, USA. Mulligan, C.N., Yong, R.N. Gibbs, B.F., 2001. An evaluation of technologies for the heavy metal remediation of dredged sediments. J. Hazard. Mater. 85, 145-163. Mulligan, C.N., Yong, R.N., Gibbs, B.F., James, S., and Bennett, H.P.J., 1999. Metal Removal from Contaminated Soil and Sediments by the Biosurfactant Surfactin. Environ. Sci. Technol., 33, 3812-3820. Neale, C.N., Bricka R.M., Chao A.C., 1997. Evaluating acids and chelating agents for removing heavy metals from contaminated soils. Environ. Prog. 16, 274-280. Nguyen, H. H., Tran, T., Wong, P. L. M., 1997. A kinetic study of the cementation of gold from cyanide solutions onto copper. Hydrometallurgy 46, 55-69. Nosier, S.A., Sallam, S.A.,2000. Removal of lead ions from wastewater by cementation on a gas-sparged zinc cylinder. Sep. Purif. Technol. 18, 93-101. Nowack, B., 2002. Environmental chemistry of aminopolycarboxylate chelating agents. Environ. Sci. Technol. 36, 4009-4016. Panda, B., Das, S. C., 2001. Electrowinning of copper from sulfate electrolyte in presence of sulfurous acid. Hydrometallurgy 59, 55-67. Peters, R.W., 1999. Chelant extraction of heavy metals from contaminated soils. J. Hazard. Mater. 66, 151-210. Pichtel, J., Pichtel, T.M., 1997. Comparison of solvents for ex situ removal of chromium and lead from contaminated soil. Environ. Eng. Sci. 14, 97-104. Rampley, C.G., Ogden, K.L., 1998. Preliminary studies for removal of lead from surrogate and real soils using a water soluble chelator: adsorption and batch extraction. Environ. Sci. Technol. 32, 987-993. Reed, B.E., Carriere, P.C., Moore, R., 1996. Flushing of a Pb(II) contaminated soil using HCl, EDTA, and CaCl2. J. Environ. Eng.-ASCE 122, 48-50. Riley, C. M., 1951. Relation of chemical process the bloating clay. J. Am. Ceram. Soc. 34(4), 121-128. Rohwerder, T., Gehrke, T., Kinzler, K., Sand, W., 2003. Bioleaching review part A: Progress in bioleaching: fundamentals and mechanisms of bacterial metal sulfide oxidation. Appl. Microbiol. Biotechnol. 63, 239-248. Samanidou, V., Fytianos, K., 1990. Mobilization of heavy metals from river sediments of Northern Greece by complexing agents. Water Air Soil Poll. 52, 217-225. Scancar, J., Milacic, R., Strazar, M., Burica, O., 2000. Total metal concentrations and partitioning of Cd, Cr, Cu, Fe, Ni and Zn in sewage sludge. Sci. Total Environ. 250, 9-19. Schecher, W.D. and Mcavoy D.C., 2003. MINEQL+: A chemical equilibrium modeling system, version 4.5 for Windows, User’s Manual. Environmental Research Software, Hallowell, Maine. Schmidt, C.K., Fleig, M., Sacher, F., Brauch, H.J., 2004. Occurrence of aminopolycarboxylates in the aquatic environment of Germany. Environ. Pollut. 131, 107-124. Skoog, D.A., West, D.M., Holler, F.J., Crouch, S.R., 1999. Analytical chemistry: an introduction, 7th ed. Thomson Learning, London, pp. 186-189. Steele, M.C., Pichtel, J., 1998. Ex-situ remediation of a metal- contaminated superfund soil using selective extractants. J. Environ. Eng. 124, 639-645. Stefanowicz, T., Osinska, M., Napieralska-zagozda, S., 1997. Copper recovery by cementation method. Hydrometallurgy 47, 69-90. Sun, B., Zhao, F.J., Lombi, E., McGrath, S.P., 2001. Leaching of heavy metals from contaminated soils using EDTA. Environ. Pollut. 113, 111-120. Tandy S., Bossart K., Mueller R., Ritschel J., Hauser L., Schulin R., Nowack B., 2004. Extraction of Heavy Metals from Soils Using Biodegradable Chelating Agents. Environ. Sci. Technol. 38, 937-944. Tejowulan, R.S., Hendershot, W.H., 1998. Removal of trace metals from contaminated soils using EDTA incorporating resin trapping techniques. Environ. Pollut. 103, 135-142. Tessier, A., Campbell, P.G.C., Bisson, M., 1979. Sequential extraction procedure for the speciation of particulate trace metals. Analytical Chemistry, 51, 844-851. Theodoratus, P., Papassiopi, N., Georgoudis, T., Kontopoulos, A., 2000. Selective removal of lead from calcareous polluted soils using the Ca-EDTA salt. Water, Air, Soil Pollut. 122, 351-368. Tichy, R., Nydl, J., 1997. Quantifying and growth of sulphur-oxidizing bacteria during bioleaching of a thick suspension. Biotechnol. Tech. 11, 679-682. Ure, A. M., 1996. Single extraction schemes for soil analysis and related applications. Sci. Total Environ., 178, 3-10. Van Benschoten, J.E., Matsumoto, M.R., Young, W.H., 1997. Evaluation and analysis of soil washing for seven lead-contaminated soils. J. Envir. Eng., ASCE, 123, 217-224. Vandevivere, P., Hammes, F., Verstraete, W., Feijtel, T., Schowanek, D., 2001. Metal decontamination of soil, sediment, and sewage sludge by means of transition chelant [S,S]-EDDS. J. Envir. Eng., ASCE, 127, 802-811. Wainwright, P.J., Robery, P., 1991. Production and Properties of Sintered Incinerator Residues as Aggregate for Concrete. Waste Materials in Construction. 425-432. Wainwriht, P. J. and Cresswell, D. J. F., 2001. Synthetic aggregates from combustion ashs using an innovative rotary kiln. Waste Manage. 21(3), 241-246. Wasay, S.A., Barrington, S.F., Tokunaga, S., 1998. Using Aspergillus niger to bioremediate soils contaminated be heavy metals. Bioremed. J. 2, 183-190. Wong, J.S.H., Hicks, R.E., Probstein, R.F., 1997. EDTA-enhanced electroremediation of metal-contaminated soils. J. Hazard. Mater. 55, 61-79. Xie, T., Marshall, W.D., 2001. Approaches to soil remediation by complexometric extraction of metal contaminants with regeneration of reagents. J. Environ. Monitor. 3, 411-416. Yashima, S., Kanda, Y., Sano, S., (1987). Relationship between particle size and fracture energy or impact velocity required to fracture as estimated from single particle crushing. Powder Technol. 51(3), 277-282. Yu, J., Klarup, D., 1994. Extraction kinetics of copper, zinc, iron, and manganese from contaminated sediments using disodium ethylenediaminetetraacetate. Water Air Soil Poll. 75, 205-225. Zorpas, A. A., Constantinides, T., Vlyssides, A. G., Haralambous, I., Loizidou, M., 2000. Heavy metal uptake by natural zeolite and metals partitioning in sewage sludge compost. Bioresour. Technol. 72, 113-119. Zorpas, A. A., Vlyssides, A. G., Zorpas, G. A., Karlis, P. K., Arapoglou, D., 2001. Impact of thermal treatment on metal in sewage sludge from the Psittalias wastewater treatment plant, Athens, Greece. J. Hazard. Mater. 82, 291-298. 王鯤生、李俊福、江康鈺、林芳玲、儲雯娣、葉宗智、林仕敏,「一般廢棄物焚化灰渣之有害物質特性研究」,行政院環保署委託研究報告,EPA-85-E3H1-09-02,1996。 行政院環保署,「有害事業廢棄物清理管制計畫-管制中心第三年」,1999。 呂慶慧、許益源、羅彗瑋、陳誼彰,「從含有EDTA與多種金屬之錯合物的廢水中回收EDTA的方法」,中華民國專利,發明第125830號,2000。 黃錦明、楊萬發,「焚化灰渣管理對策」,環境工程會刊,第五卷,第二期,pp.21-28,1994。 經濟部工業局,「印刷電路板業資源化應用技術手冊」,2002a。 經濟部工業局,「電鍍業資源化應用技術手冊」,2002b。 廖錦聰,徐文慶,張蕙蘭,黃契儒,「焚化灰渣資源化報告」,工業技術研究院化學工業研究所,1996。 蔡敏行、李伯興、胡紹華,「含重金屬污泥之資源化關鍵技術」,泥渣廢棄物資源化技術研討會,國科會工程科技推展中心,2002。 | |
dc.identifier.uri | http://tdr.lib.ntu.edu.tw/jspui/handle/123456789/30050 | - |
dc.description.abstract | 含重金屬廢水污泥之具有產生源業別多、分布廣、種類複雜且數量龐大等特性,其TCLP測試往往無法符合有害事業廢棄物認定標準的規定,因此,如何將有害重金屬污泥資源化及回收有價重金屬,並作為環境融合之綠色資材,已是刻不容緩之研究課題。為解決國內長久存在之重金屬污泥污染的問題,本研究利用螯合劑(生物易分解、生物不易分解兩類)萃取印刷電路板及電鍍污泥中之重金屬,並探討化學置換反應對生物不易分解螯合劑回收再利用之可行性;同時評估添加螯合劑處理後有害重金屬污泥之資源化研究。研究內容包括:(1)螯合萃取污泥中有害重金屬;(2)有害重金屬回收及螯合劑之再利用;(3)添加螯合劑處理後有害重金屬污泥資源化研究;(4)螯合後重金屬污泥之綠色資材的環境溶出效應。
研究顯示,A、 C及D污泥偏鹼性,B污泥為中性偏酸性。各廠污泥中均含有極高之Cu(約7.2-28.2%),其次為Ni與Zn。各廠污泥中Cu的溶出遠高於有害事業廢棄物的認定標準,故需妥善處理,以避免造成環境之危害與衝擊。A與C污泥中重金屬結合型態多存在於鐵錳氧化態與有機態,具有較強的鍵結而不易被萃出,即具有較高之生物不可利用性;B污泥中重金屬結合型態多存在於可交換態與碳酸鹽態,最易溶出或萃出,即具有較高之生物可利用性。 在螯合萃取方面,以0.1 M EDTA、DTPA或EDDS即可有效萃取B與C污泥中之重金屬,對A污泥則需提高EDTA、DTPA或EDDS之濃度至0.25 M才能達到較佳之萃取率;這與MINEQL+之模擬結果相似;且不論螯合劑的種類,萃取效率隨著液固比的增加而上升。A污泥連續萃取實驗,以使用EDTA連續萃取效果較佳;B與C污泥,則不論連續萃取的組合,均可獲得不錯的效果。0.1 M EDTA、DTPA或EDDS萃取後,污泥中重金屬結合型態均偏向生物不可利用,即萃取後會趨於穩定,這與萃取後污泥之TCLP試驗結果相符。比較EDTA、DTPA或EDDS對A、B與C污泥中Cu之萃取效率,發現EDDS對Cu的萃取效率與EDTA或DTPA相當且大於NTA,因此,EDDS的生物易分解性將使螯合萃取技術更具環境競爭力。 在化學置換反應方面,Fe置換螯合後溶液之銅隨Fe:Cu莫爾比增加而上升,但逐漸趨於平緩;較佳pH為3、Fe:Cu莫爾比為6,此時對Cu的置換率可達80%左右。在Fe置換螯合銅的過程中,亦有少量的Zn及Ni沈澱,這是因為Fe置換螯合銅會產生共沉澱效應,使得Zn及Ni亦有部分的沉澱。另外,Fe的濃度在Fe:Cu莫爾比大於4時,即趨近穩定狀態。從固體物之XRD及SEM分析可知,置換後固體物為Cu及Fe之結晶。 在螯合劑再利用方面,置換後懸浮液中螯合劑濃度隨Fe用量增加而上升,且置換後懸浮液之螯合劑濃度均無法達到原始的濃度。Fe置換螯合銅後之DTPA懸浮液可再利用於萃取A、B或C污泥中之重金屬,而Fe置換螯合銅後之EDTA懸浮液則僅可再利用於萃取B污泥中之重金屬,這是B污泥中重金屬結合型態多為易萃出之可交換態與碳酸鹽態所致。另外,有經Fe沈澱處理之萃取溶液其萃取效率明顯高於未經Fe沈澱處理之萃取溶液,這是Fe會與Cu競爭自由的EDTA或DTPA所致。而回收的萃取溶液經三次的再萃取並不會降低其萃取效果,因此,有助於螯合萃取劑的再生利用。 硫沈澱對螯合後萃取溶液中之Cu、Zn與Ni均有良好的沈澱效果,與A、B或C污泥或螯合劑的種類無關,這是因為硫離子跟重金屬間具有較高錯和能力(高pK值)。而硫沈澱後之懸浮溶液則可再利用於萃取新鮮之重金屬污泥,但在三次重複利用後,以EDTA懸浮液萃取效率降低較多,對A污泥之萃取率會降低36~54%、B污泥則為6~10%、C污泥則為16~24%。 螯合後重金屬污泥資源化研究方面,混合40%之螯合後重金屬污泥與60%之石材污泥,在燒結時間15 min、溫度1150oC時,可資源化成密度0.74 g/cm3、抗壓強度4.41 MPa之輕質骨材。序列萃取分析重金屬污泥為基礎的輕質骨材則發現,污泥中重金屬多鍵結在鐵錳氧化態、有機態與矽酸鹽態;隨燒結溫度愈高,燒結輕質骨材之溶出濃度愈低,在燒結溫度達1150oC時,序列萃取之溶出總量即可符合TCLP之標準。 | zh_TW |
dc.description.abstract | Sludge containing heavy metals is a widespread and complicated headache for many related industries. The TCLP leaching concentration of sludge is higher than the standards for defining hazardous waste. Thus, the resource recovery of heavy metal from sludge is an emergent environmental issue. In this study, we evaluate the performances of novel copper removal processes for printed circuit board and electroplating wastewater sludge applying chelant extraction (Biodegradable chelate and Persistent chelate) and powdered iron cementation, followed with the reuse of chelating agents to chelate supplementary fresh copper-containing sludge. The contents of this study are: (1) to extract the heavy metals from sludge; (2) to recover the heavy metal and to recycle the chelating solution; (3) to recycle the hazardous heavy metal sludge that is pretreated by chelating extraction; (4) to evaluate the leaching behavior of heavy metals from green materials that is produced from the heavy metal sludge after chelating extraction.
The results of this study indicated that sludges A, C, and D were slightly alkaline, but sludge B was very slightly acidic. The study showed that the sludges contained copper of high total concentrations (about 7.2-28.2 wt. %), with small total concentrations of nickel and zinc. The leaching concentrations of copper in all sludges were extremely high, especially in sludge B. Based on this data, the recovery of copper from sludges appears to be of practical, as well as environmental, value. The results of sequential extraction indicated that heavy metals in sludge A and C existed as the forms of Fe/Mn-oxide bound and organically bound mostly, but the forms of exchangeable bound and carbonate bound mostly for sludge B. Thus, the metal mobility and potential bioavailability was lower for sludge A and C, but contrary to sludge B. For the extraction experiments, the results indicated that the best extraction efficiency of heavy metals was 0.25 M EDTA or DTPA or EDDS for sludge A, 0.1 M chelating agents for sludge B and sludge C. The experimental results were similar to the simulated results using MINEQL+. The extraction efficiency of heavy metals increased when the ratio of liquid to solid increased, irrespective of the kind of chelating agent. The successive extraction using EDTA would achieve the better extraction efficiency for sludge A. The distribution of the metal fractions in the sludge would become stable after chelating extraction. For Cu, the order of extraction efficiency was EDDS ≥ EDTA ≥ DTPA > NTA. The easily biodegradable chelating agent EDDS has been proposed as a safe and environmentally benign replacement for EDTA in sludge extraction. Results of the cementation experiments showed that precipitation efficiencies of Cu of were higher than 80% when the Fe:Cu molar ratio was as high as 6:1 at pH 3 for each sludge sample. The deposit of zinc and nickel results from the coprecipitation on copper precipitated by cementation processes. The XRD analysis results of recovered copper from the chelated cupric wastewater indicated that copper deposits on the iron surface almost entirely in the form of the copper molecules. The more powdered iron used, the higher the recovered efficiency of EDTA and DTPA. The efficiency of re-extraction using reused EDTA reached the original level of chelating extraction only for sludge B. However, the copper extraction efficiency for each sludge is quite approximate when using DTPA recovered at various iron concentrations. This is because the leachability of sludge B was superior to that of sludge A or C. The removal of Cu, Zn, and Ni from clelated wastewater by sulfide precipitation was well, irrespective of the kind of chelating agent or sludge. This may be related to the fact that CuS has a higher pKa value than CuEDTA or CuDTPA. The supernatant could be recovered and reused again as chelants for sludge extracting solutions. However, the extraction efficiency of the supernatant after being recycled over three cycles was lower than that of fresh chelating agents. Reduction ratios of copper from supplementary sludge using the extract from the metal-sulfide precipitation were 36-54% for sludge A, 6-10% for sludge B, and 16-24% for sludge C in comparison with previous extraction. The heavy metal sludge after chelating extraction and mining residues were evenly mixed at a weight ratio of 40% : 60% into raw aggregate pellets of 3-5 mm diameter. The lowest density of 0.74 g/cm3 and low compressive strength of 4.41 MPa could be obtained at sintering temperature of 1150°C for 15 min. The concentrations of heavy metals leached tend to decrease with increasing sintering temperature. Results obtained by sequential extraction show that concentrations of Cd, Cr, Cu, and Pb in LWA sintered at 1150°C for 15 min dropped significantly to the regulatory threshold. | en |
dc.description.provenance | Made available in DSpace on 2021-06-13T01:32:56Z (GMT). No. of bitstreams: 1 ntu-96-D90541003-1.pdf: 1941601 bytes, checksum: 33a7ea3f92c25682a3ebaa8d2d11a86e (MD5) Previous issue date: 2007 | en |
dc.description.tableofcontents | 目 錄
謝誌 中文摘要…………………………………………………………………………I 英文摘要………………………………………………………………III 目錄……………………………………………………………………V 圖目錄…………………………………………………………………IX 表目錄………………………………………………………………XIII 第一章 緒論……………………………………………………………1 1.1 前言…………………………………………………………………1 1.2 研究目的及內容……………………………………………………2 第二章 文獻回顧………………………………………………………5 2.1 污泥中之重金屬……………………………………………………5 2.1.1 印刷電路板污泥……………………………………………5 2.1.2 電鍍污泥……………………………………………………9 2.2 污泥無害化與資源化……………………………………………11 2.2.1 固化處理技術……………………………………………12 2.2.2 燒結處理技術……………………………………………14 2.2.3 熔融資源化處理技術……………………………………16 2.2.4 重金屬污泥生物溶出技術………………………………18 2.2.5 重金屬萃取技術…………………………………………20 2.2.6 污泥無害化與資源化處理技術評估……………………24 2.3 重金屬螯合萃取技術……………………………………………26 2.3.1 序列萃取應用……………………………………………26 2.3.2 重金屬螯合萃取…………………………………………29 2.3.3 影響重金屬污泥螯合萃取之因子………………………36 2.4 重金屬回收與萃取液再利用……………………………………40 2.4.1 化學置換反應機制………………………………………40 2.4.2 重金屬回收與萃取液再利用……………………………42 第三章 實驗流程與研究方法…………………………………………47 3.1 重金屬污泥來源…………………………………………………47 3.2 研究架構…………………………………………………………47 3.3 實驗設計與操作流程……………………………………………50 3.3.1 污泥中重金屬結合型態…………………………………50 3.3.2 螯合萃取試驗……………………………………………53 3.3.3 萃取液中重金屬回收與螯合劑再利用…………………55 3.3.4 螯合後重金屬污泥資源化………………………………60 3.4 實驗設備與分析項目……………………………………………62 3.4.1實驗儀器及藥品……………………………………………62 3.4.2 分析項目…………………………………………………63 第四章 實驗結果與討論………………………………………………69 4.1 重金屬污泥特性…………………………………………………69 4.2 污泥中重金屬結合型態…………………………………………71 4.2.1 Tessier序列萃取………………………………………71 4.2.2 歐盟BCR萃取……………………………………………73 4.3 MINEQL+軟體計算萃取物種平衡濃度…………………………77 4.3.1 螯合萃取物種模擬………………………………………77 4.3.2 化學置換反應物種模擬………………………………80 4.4 螯合萃取試驗……………………………………………………82 4.4.1 生物不易分解螯合劑…………………………………82 4.4.2 生物易分解螯合劑………………………………………97 4.4.3 小結………………………………………………………103 4.5 萃取液中重金屬回收與螯合劑再利用…………………………105 4.5.1 萃取液中重金屬回收…………………………………105 4.5.2 螯合劑再利用…………………………………………110 4.6 萃取液中重金屬硫沈澱與螯合劑再利用………………………115 4.6.1 萃取液中重金屬硫沈澱…………………………………115 4.6.2 硫沈澱後萃取液再利用…………………………………118 4.7 萃取後重金屬污泥資源化………………………………………120 4.7.1 萃取後重金屬污泥特性…………………………………120 4.7.2 萃取後重金屬污泥燒結輕質骨材………………………121 第五章 結論與建議…………………………………………………127 5.1 結論………………………………………………………………127 5.2 建議………………………………………………………………129 參考文獻………………………………………………………………131 附錄……………………………………………………………………139 一、廢水處理流程……………………………………………………140 A廠廢水處理流程……………………………………………………140 B廠廢水處理流程……………………………………………………141 C廠廢水處理流程……………………………………………………142 二、原始實驗資料……………………………………………………143 | |
dc.language.iso | zh-TW | |
dc.title | 含銅重金屬污泥螯合萃取及資源化研究 | zh_TW |
dc.title | Chelating extraction and recovery of copper from hazardous heavy metals sludge | en |
dc.type | Thesis | |
dc.date.schoolyear | 95-2 | |
dc.description.degree | 博士 | |
dc.contributor.oralexamcommittee | 楊萬發(Wan-Fa Yang),李公哲(Kung-Cheh Li),謝永旭(Yung-Hsu Hsieh),林志棟(Jyh-Dong Lin),蔡敏行(Min-Shing Tsai) | |
dc.subject.keyword | 含銅重金屬污泥,螯合萃取,化學置換反應,螯合再萃取,輕質骨材,序列萃取, | zh_TW |
dc.subject.keyword | Copper contained sludge,Chelant extraction,Cementation,Re-extraction,Lightweight aggregate,Sequential extraction, | en |
dc.relation.page | 148 | |
dc.rights.note | 有償授權 | |
dc.date.accepted | 2007-07-17 | |
dc.contributor.author-college | 工學院 | zh_TW |
dc.contributor.author-dept | 環境工程學研究所 | zh_TW |
顯示於系所單位: | 環境工程學研究所 |
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