Ultrasonic pre-treatment of biological sludge: consequences for disintegration, anaerobic biodegradability, and filterability

Erden G., Filibeli A.

JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, cilt.85, sa.1, ss.145-150, 2010 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 85 Sayı: 1
  • Basım Tarihi: 2010
  • Doi Numarası: 10.1002/jctb.2298
  • Dergi Adı: JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED)
  • Sayfa Sayıları: ss.145-150
  • Anahtar Kelimeler: anaerobic biodegradability, biological sludge, filterability, floc disintegration, WASTE-ACTIVATED-SLUDGE, SOLUBILIZATION
  • Dokuz Eylül Üniversitesi Adresli: Evet

Özet

BACKGROUND: Disintegration was developed as a pretreatment process for sludge to accelerate the digestion processes. Ultrasonic treatment may be a good alternative for sludge disintegration. In this study, different specific energy inputs ranged between 0 and 15 880 kJ kg(-1) and very low ultrasonic densities ranged between 0.04 and 0.1 W mL(-1) were applied to biological sludge for disintegration purposes. The potential for improving anaerobic digestion through ultrasonic pre-treatment and the effect of ultrasonic pre-treatment on the filterability characteristics of sludge were also investigated.