本論文探討富磷污泥與不同超音波預處理時間之鋁鹽污泥的共調理研究。本實驗利用陽離子性聚電解質對富磷污泥進行單一調理及共調理，以毛細虹吸時間(CST)及過濾比阻(SRF)作為污泥脫水性的評估，並量測界達電位、沉降速率、濁度等性質，了解超音波預處理時間及聚電解質對污泥調理之影響，同時也量測溶解性化學需氧量及溶解性磷之濃度，分別討論鋁鹽污泥之超音波預處理時間對其有機物釋放以及對磷去除效率的影響。隨後利用恆溫吸附實驗，討論各種因素對鋁鹽污泥吸附溶解性磷之影響。

由富磷污泥單一調理可知，陽離子性聚電解質的添加可改善脫水性及沉降性，但對於溶解性磷的移除並無幫助。從共調理結果得知，利用超音波對鋁鹽污泥進行預處理，可提升溶解性磷的去除率，但會釋放出溶解性化學需氧量，因此同時顯示出鋁鹽污泥除磷反應，可用磷酸根與有機物質之交換來描述。另外，超音波預處理時間愈長，愈不利於脫水性及沉降性，添加適量的聚電解質即可有效改善之，其所需最適劑量亦相同。

恆溫吸附實驗中，溶液酸鹼值在偏酸性的情況下，有利於吸附的進行。鋁鹽污泥中所含氫氧化鋁的量也會影響其吸附能力。而Langmuir恆溫吸附模式最適用於本恆溫吸附試驗。

The co-conditioning and dewatering behaviors of phosphorus-rich biological sludge with pre-ultrasonicated alum sludge were investigated in this study. Capillary suction time (CST) and specific resistance to filtration (SRF) were utilized to assess sludge dewaterability. Zeta potential, settling velocity and turbidity were also measured. The soluble chemical oxygen demand (SCOD) and removal efficiency of soluble phosphorus from the sludge were examined to determined effect of ultrasound pretreatment. To evaluate role of alum sludge in phosphorus removal, the adsorption of phosphorus on alum sludge was studied.

In single conditioning, the dewaterability was improved by addition of cationic polyelectrolyte. In co-conditioning, pre-ultrasonicated alum sludge could increase removal efficiency of soluble phosphorus, but caused release of SCOD. Results also showed that phosphorus replaced the organic matters from the surface of alum sludge. However, polyelectrolyte at identical dose could achieve satisfactory dewaterability.

In adsorption experiments, it was found that the adsorptive capacity decreased with increasing pH. The amount of aluminum hydroxide in sludge affected adsorptive capacity. Langmuir adsorption isotherm fit experimental data in this study.

黃昭貴，「含磷污泥與鋁鹽污泥之共調理脫水」，碩士論文，國立台灣科技大學化學工程系，台北 (2005)。

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