Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/5214
DC FieldValueLanguage
dc.contributor.advisor廖文彬zh_TW
dc.contributor.advisorFang Jin-Gouen_US
dc.contributor.advisor謝永旭zh_TW
dc.contributor.advisor洪肇嘉zh_TW
dc.contributor.advisor李達源zh_TW
dc.contributor.author黃文成zh_TW
dc.contributor.authorHuang, Wen-Chengen_US
dc.date1997zh_TW
dc.date.accessioned2014-06-06T06:34:17Z-
dc.date.available2014-06-06T06:34:17Z-
dc.identifier.urihttp://hdl.handle.net/11455/5214-
dc.description.abstract本研究以高嶺土作為主要之土壤材料, 來探討磷酸鹽對土壤中重金屬移動 的影響, 及其 應用於重金屬污染之土壤復育的可能性(改良/增加土攘對 重金屬之吸附能力)。重金屬 選定以鎘為研究對象, 於批次吸附實驗中 改變磷與鎘的添加順序、pH、濃度三項變因。 研究結果顯示, pH的增 加(4到6)有助於鎘的吸附, 且在所研究之土壤中, 不同比例的磷 添加及 前處理對鎘吸附量大小依序為: Na-Kao.(Cd:P=1:1, 同時添加)≒Na- Kao.(Cd:P= X:1, 同時添加)≒Na-Kao.>P-Kao.(pHi=4)≒P-Kao.( pHi=6), 而鎘的吸附亦可減少磷的 脫附。在磷的研究結果方面, 隨pH降 低(6到4)磷的吸附會增加, 且對磷的吸附量依序為 Na-Kao.(Cd:P=1:1, 同時添加)≒Na-Kao.(Cd:P=1:X, 同時添加)≒Cd-Kao.(pHi=4)>Na- Kao., 吸附上去的磷亦可減少鎘的脫附。 磷的添加確實可減少受鎘污染 的高嶺土中鎘的脫附, 雖然其影響沒有pH來的大。但磷酸 鹽的添加除了 減少重金屬的脫附外, 亦可做為植物及微生物的營養源, 可說具備多項功 能。zh_TW
dc.description.abstractFocuses of the study were on influence of phosphate on the removal of heavy metal in soils and the remediation of soil (to improve/increase the adsorption of heavy metals by soils). Kaolinite and cadmium were the main material used in this research. Three factors:(1)adding sequence of phosphate and cadmium, (2)pH, (3)concentration of phosphate and cadmium, were investigated. The results of this research are summarized below: (1)The adsorption of cadmium by soils increased when the increase of the pH (4 tO 6). But converse for phosphate. (2)For the pretreated of Kaolinite in NaClO4, the metal(cadmium) sorption followed the sequence: Na-Kao.(Cd:P=1:1, add together)≒Na-Kao.(Cd:P=X:1, add together)≒Na-Kao.>P-Kao.( pHi=4)≒P-Kao.(pHi=6). And the adsorption of cadmium minimized the desorption of phosphate. (3)The phosphate sorption followed the sequence:Na-Kao.(Cd:P=1:1, add together)≒Na-Kao.(Cd:P=1:X, add together)>Cd-Kao.(pHi=4)>Na- Kao. Although the influence of phosphate is less than pH on th adsorption of cadmium, but the addition of phosphate can really decrease the desorption of cadmium from soils. Besides, added phosphate in soils can be also the nutrition origin of plants and microbes. Therefor, the addition of phosphate into cadmium-contaminated soil is recommended as a favorable approach.en_US
dc.language.isoen_USzh_TW
dc.publisher環境工程學系zh_TW
dc.subjectphosphateen_US
dc.subject磷酸鹽zh_TW
dc.subjectheavy metal(Cd)en_US
dc.subjectadsorptionen_US
dc.subject重金屬(鎘)zh_TW
dc.subject吸附zh_TW
dc.title磷酸鹽對土壤中重金屬移動之影響zh_TW
dc.titleInfluence of Phosphate on the Removal of Heavy Metal in Soilsen_US
dc.typeThesis and Dissertationzh_TW
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.openairetypeThesis and Dissertation-
item.cerifentitytypePublications-
item.fulltextno fulltext-
item.languageiso639-1en_US-
item.grantfulltextnone-
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