INFLUENCE OF ULTRASONIC TREATMENT ON SEDIMENTATION AND WETHEATING PROPERTIES OF SUSPENSIONS OF ACTIVE SLUDGE
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Abstract
The results of investigations of the influence of ultrasonic treatment on the sedimentation and water-release properties of suspensions of active sludge are presented. The object of the study was a slurry of activated sludge, as well as liquid and solid phases (cake and fugate) of an ultrasonically treated suspension with ultrasonic installations with piezoelectric and hydrodynamic radiators. The efficiency of the ultrasonic treatment was evaluated by the change in the disperse composition and the time of capillary absorption of the slurry, as well as the sedimentation characteristics of the clay suspensions.
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References
Wang, Fen Mechanisms and kinetics models for ultrasonic waste activated sludge disintegration / Fen Wang, Yong Wang, Min Ji // Journal of Hazardous Materials. – 2005. – Vol. 123, № 8. – P. 145–150.
Ultrasonic pretreatment of sludge : A review / Sridhar Pilli [et al.] // Ultrasonics Sonochemistry. – 2011. – Vol. 18, № 1. – P. 1–18.
Clark, P.B. Ultrasonic sludge pretreatment for enhanced sludge digestion / P.B. Clark // Water and Environ. Manag. – 2000. – Vol. 14, № 1. – Р. 66–71.
Zielewicz-Madej, E. Zastosowanie dezintegracji ultradźwiekovej do intensigfikowania produkcji lotnych kwasow tluszczowych z osadu wtornego / E. Zielewicz-Madej // Inz. i ochr. srod. – 2001. – Vol. 4, № 2. – S. 231.
Seungmin, Na Physiochemical properties of digested sewage sludge with ultrasonic treatment / Na Seungmin, Young-Uk Kim, Jeehyeong Khim // Ultrasonics Sonochemistry. – 2007. – Vol 14, № 3. – P.281–285.
Xin Feng, Jinchuan Deng, Hengyi Lei, Tao Ba, Qingjuan Fan, Zhaoxu Li. Dewaterability of waste activated sludge with ultrasound conditioning // Bioresource Technology. – 2009. – Vol. 100, № 3. – Р. 1074–1081.
Effect of ultrasound pretreatment in mesophilic and thermophilic anaerobic digestion with emphasis on naphthalene and pyrene removal / T.B. El-Hadj [et al.] // Water Res. – 2007. – Vol. 41, № 1. – P. 87–94.
Chemical and structural (2D) linkage between bacteria withinactivated sludge flocs / F. Jorand [et al.] // Water Res. – 1995. – Vol. 29, № 7. – P. 1639–1647.
Ultrasonic treatment of an aerobic activated sludge in a batch reactor / E. Gonze [et al.] // Chem. Eng. Process. –2003.– Vol. 42, №12. – P. 965–975
Forster, C.F. Flocculating agents of microbial origin / C.F. Forster, N.J.B. Knight, D.A.J. Wase // Adv. Biotechnol. Prog. – 1985. – Vol. 2, № 1.– Р. 211–240.
Vallom, J.K. Lysis as a factor in sludge flocculation / J.K. Vallom, A.J. McLoughlin // Water Res. – 1984. – Vol. 18, № 12. – P. 1523–1528.
Dewil, R. Ultrasonic treatment of waste activated sludge / R. Dewil, J. Baeyens, R. Goutvrind // Environ. Progress. – 2006. – Vol. 25, № 2. – P. 121–128.
Physical and chemical characteristicsof waste activated sludge treated ultrasonically / X. Feng [et al.] // Chem. Eng. Process. – 2009. – Vol. 48, № 1. – P. 187–194.
Ultrasound waste activated sludgedisintegration for improving anaerobic stabilization / A. Tiehm [et al.] // Water Res. – 2001. – Vol. 35, № 8. – Р. 2003–2009.
Способ определения распространения границы смачивания и краевого угла внутри капилляров пористого материала, устройство и автоматизированная система измерения, его реализующие : пат. BY 8807 / И.О. Оробей [и др.]. – Опубл. : 30.03.2005.
Фролов, Ю.Г. Лабораторные работы и задачи по коллоидной химии. – М. : Химия, 1986. – 216 с.