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題名 | 不同水化特性的離子吸附後對Fe[feaf]O [feb0]污泥脫水性之影響 |
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作者姓名(中文) | 謝永旭; 馬啟隆; | 書刊名 | 興大工程學報 |
卷期 | 2 1991.02[民80.02] |
頁次 | 頁105-115 |
分類號 | 445.463 |
關鍵詞 | 水化; 污泥; 吸附; 脫水性; 離子; |
語文 | 中文(Chinese) |
中文摘要 | 水處理過程中,由於鐵鹽的混凝劑或污泥調理劑的添加,經由水化作用會產生表面帶有電性之作用基的鐵污泥膠體顆粒,因此造成其水分的不易脫除。 當不同水化特性的離子存在鐵污泥溶液中,由於不同離子的親、疏水性會改變鐵污泥膠體顆粒表面水分子的排列結構及帶電性,使得鐵污泥的脫水性亦會受到影響。 本研究主要以界達電位及比阻抗的測定來探討水化特性對Fe�烙�隻礙d膠體顆粒表面電性及脫水性之影響。經實驗結果發現,當不同水化特性的同族元素離子存在鐵污泥溶液時,陰離子的存在使得鐵污泥脫水能力由大至小之排列順序為C1�牷^Br��> I�狺呰O�婀�> BrO�婀�> ClO�婀牷A陽離子則為Li��> Na��> K��> Rb��> Cs�楔呲g�滋�> Ca�滋�> Sr��=Ba�滋楚F存在不同離子濃度下,IO�婀狺咾i�溯幭K污泥顆粒界達電位的改變量及脫水性改善之大小皆依序為10�笐尋 >10�笐譴浢 > 10�笐鐸,而I�狺咮s�溯麍伄F電位的改變量雖亦隨濃度兩增大,但對鐵污泥脫水性的影響則濃度愈高,其脫水性愈差。 |
英文摘要 | Due to the addition of iron-salt coagulant or sludge conditioner durning watertreatment processes, the charged functional groups can be produced on the surface ofiron sludge through hydrolysis reactions, therefore, a poor dewatering situation is observed. In the presence of ions with various hydrolysis characteristics, the watermolecule structure and surface charge on the iron sludge colloids can be changed andthe dewaterability of iron sludge will also be affected. The objective of this research is to study the effect of hydrolysis characteristics onthe surface charge and dewaterability of Fe�烙�� sludge particles through the determinations of zeta potential and specific resistance. It is found by experimental resultsthat in the presence of ions with various hydrolysis characteristics in the iron sludgesolutions, the dewaterability of iron sludge shows the order of Cl�� > Br�� > I�� and IOo�錚� >BrO�婀� >ClO�婀� for anions, and Li�� > Na�� > K�� > Rb�� > C�� and Mg�滋�> Ca�滋� > Sr�滋�=Ba�滋� for cations: in the presence of ions with different concentrtions. the changes of zeta potential and the improvements of dewaterability of ironsludge particles follow the order of 10�笐尋 > 10�笐鵡 > 10�笐鐸 for both IO�婀�- andLi�� . although the change of zeta potential increases with the ion concentration for I-and Cs��. the dewaterability of iron sludge is depressed with increasing ion concentration. |
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