Ultrasonic sludge disintegration in the presence of iron (II) as catalyst
by Chockalingam Lajapathi Rai; Arumugam Sivasamy; Subramani Rekha
International Journal of Environment and Waste Management (IJEWM), Vol. 12, No. 1, 2013

Abstract: Increasing environmental awareness worldwide and subsequent regulations have led to the application of improved and novel technologies in excess sludge treatment. Sludge is the by-product of wastewater treatment plants rich in organic carbons, pathogens and metals. To enhance the ultrasonic sludge disintegration, a new method by introducing (Fe (II)) as a catalyst in the process has been explored. Studies were conducted to elucidate the parameters governing the disintegration process. The disintegration profiles show two phases, disruption of micro-organisms resulting release of organic-substances and mineralisation of dissolved organic substances. The optimal level of process parameters results in better solubilisation and mineralisation.

Online publication date: Sat, 20-Sep-2014

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