循環設計應用於實廠廢水研究 : 以薄膜生物處理化製廢水為例

Application of Circular Design on the Research of Real-plant Wastewater: Membrane Bio-Reactor for the Treatment of Rendering Wastewater as An Example

李俊憲(Li Chun-Hsien)

指導教授 ： 黃武章

國立屏東科技大學/工學院/環境工程與科學系所/碩士(2021年)

https://doi.org/10.6346/NPUST202100122

摘要

屏東某化製廠的廢水處理系統，其廢水處理系統中，原有生物處理之活性污泥池於107~109年間時常發生異常，污泥呈灰黑色，活性污泥上層液混濁。導致廢水進入MBR後，中空纖維膜過濾不佳經常堵塞，長久以來中空纖維膜不斷更換，並且每年更換頻率逐漸上升。
影響活性汙泥池與中空纖維膜更換頻率因素眾多，本研究收集化製廢水處理107~109年間之歷史操作資料，藉由異常因子魚骨圖，與實際維修紀錄之時間序列，和現場實際操作經驗，找到關鍵因子。
MBR中空纖維膜透模壓力(TMP)過高與生物汙泥池異常點之關聯性，利用環境庫茲涅茨曲線，導入循環設計概念，跳脫常態思維，尋找出薄膜生物處理系統內外之影響因子，找到關鍵點，並加以改良現場系統。

關鍵字

循環經濟 ； MBR ； 廢水處理系統 ； 中空纖維膜

並列摘要

In the wastewater treatment system of a plant in Pingtung, the original biological treatment activated sludge tank often has abnormalities since the new built facility at 2018. The sludge was gray-black, and the upper layer of activated sludge was turbid. After the wastewater enters the insert full name of MBR here, the hollow fiber membranes are often blocked due to poor filtration. The hollow fiber membranes have been replaced for a short period, and the replacement frequency has gradually increased every year.
There are many factors can affect the filtration of activated sludge tank and high replacement frequency of hollow fiber membranes. To find the key factor, our study collects historical operation data of biological wastewater treatment from 2018 to 2020, using the fish-bone diagram with abnormal factors listed, such as time series of actual maintenance records, and actual operations on site.
The environmental Kuznets curve was applied to introduce the concept of circular design and tried to reveal the relationship between the high transmembrane pressure (TMP) of MBR hollow fiber and the abnormal condition of the biological sludge tank. Finally, the biological treatment system by improving the key factor in and out of the MBR system.

並列關鍵字

Circular economy ； MBR ； Wastewater treatment system ； Hollow fiber

參考文獻

1. António M.P. Martins; Joseph J. Heijnen; Mark C.M. van Loosdrecht (2003). Effect of feeding pattern and storage on the sludge settleability under aerobic conditions. Science Direct. pp.2555-2570.

2. B.Q Liao; D.G Allen; I.G Droppo; G.G Leppard; S.N Liss (2001). Surface properties of sludge and their role in bioflocculation and settleability. Science Direct. pp.339-350.

3. D.P. Mesquita; A.L. Amaral; E.C. Ferreira (2011). Characterization of activated sludge abnormalities by image analysis and chemometric techniques. Science Direct. pp.235-242.

4. J. Arévalo; B. Moreno; J. Pérez; M.A. Gómez (2009). Applicability of the Sludge Biotic Index (SBI) for MBR activated sludge control. Science Direct. pp.748-789

5. K. Katsoufidou; S.G. Yiantsios; A.J. Karabelas (2005). A study of ultrafiltration membrane fouling by humic acids and flux recovery by backwashing: Experiments and modeling. Science Direct. pp.40-50