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Journals / Uludağ Üniversitesi Mühendislik Fakültesi Dergisi / 2026 / Cilt: 22 Sayı: 1

Disintegration of Waste Activated Sludge: Mechanical, Thermal and Chemical Methods

ATIK AKTİF ÇAMUR DEZENTEGRASYONU: MEKANİK, TERMAL VE KİMYASAL YÖNTEMLER

Canan Çırakoğlu
Efsun Dindar
F. Olcay Topaç Şağban
Pages
29–38
Publication Date
2017-04-10
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AI Summary & Key Takeaways

AI Insight
⚡ TL;DR(Too Long; Didn't Read)

According to the results, the applied methods increased SCOD of sludge by 34% to 75%.

📌 3 Key Takeaways

🎯
Objective & Hypothesis:Sludge disintegration methods are the pretreatment methods applied for eliminating rate-limiting hydrolysis step of anaerobic digestion process and increasing stabilization level and the amount of produced biogas.
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Key Findings & Data:According to the results, the applied methods increased SCOD of sludge by 34% to 75%.
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Conclusion & Impact:While it is a more economical alternative and higher solubilization was achieved, hydrodynamic cavitation can be an appropriate method for increasing the performance of anaerobic digestion process.
🔬Design:Araştırma Makalesi
📍Scope:Comprehensive Sample
⚙️Variables:Aktif Çamur · Dezentegrasyon Yöntemleri · Çözünebilir KOİ

Abstract

Sludge disintegration methods are the pretreatment methods applied for eliminating rate-limiting hydrolysis step of anaerobic digestion process and increasing stabilization level and the amount of produced biogas. In this study, the effect of several disintegration methods (thermal, mechanical and chemical) on the solubility of sludge components was evaluated and compared with respect to the variation of soluble chemical oxygen demand (SCOD) parameter. According to the results, the applied methods increased SCOD of sludge by 34% to 75%. The thermal method carried out at 150 o C and hydrodynamic cavitation operated under the condition of cavitation number (Cv) of 0.2 achieved the most efficient sludge disintegration. When the chemical methods were compared, alkali methods were found to be generally more efficient than acidic ones. While it is a more economical alternative and higher solubilization was achieved, hydrodynamic cavitation can be an appropriate method for increasing the performance of anaerobic digestion process.

Özet

Çamur dezentegrasyon yöntemleri, atıksu çamurlarının çürüme işleminde hız sınırlayıcı adım olan hidroliz aşamasını elimine etmek, stabilizasyon derecesini ve oluşan biyogaz miktarını arttırmak amacıyla uygulanan ön arıtma yöntemleridir. Bu çalışmada çamura uygulanan farklı dezentegrasyon yöntemlerinin (mekanik, termal ve kimyasal) çamurun çözünebilirliğine olan etkisi, çözünmüş kimyasal oksijen ihtiyacı (ÇKOİ) parametresindeki değişimler üzerinden irdelenerek kıyaslanmıştır. Elde edilen sonuçlara göre uygulanan prosesler çamurun ÇKOİ içeriğini %34 ila %75 arasında değişen oranlarda arttırmıştır. 150 o C de uygulanan termal yöntem ile kavitasyon sayısının (KS) 0,2 olarak ayarlandığı şartlarda işletilen hidrodinamik kavitasyon en etkin dezentegrasyonu gerçekleştirmiştir. Kimyasal yöntemler kıyaslandığında ise alkali ilaveli yöntemlerin asidik yöntemlerden daha etkin olduğu tespit edilmiştir. Yüksek çözünebilirlik değerlerine ulaşılması ve diğer yöntemlere göre daha ekonomik bir alternatif olmasından dolayı hidrodinamik kavitasyon yönteminin anaerobik çamur çürütme performansının arttırılması için uygun bir yöntem olabileceği sonucuna varılmıştır.

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Cite This Article

Çırakoğlu, C., Dindar, E., Şağban, F. O. T. (2017). Disintegration of Waste Activated Sludge: Mechanical, Thermal and Chemical Methods. Uludağ Üniversitesi Mühendislik Fakültesi Dergisi, Cilt: 22 Sayı: 1, 29–38. https://doi.org/10.17482/uumfd.305184

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