Moghadam, M. A., Soheili, M., & Esfahani, M. M. (2005). Effect of Ionic Strength on Settling of Activated Sludge. Iranian Journal of Environmental Health Science & Engineering, 2, 1-5. - References

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Moghadam, M. A., Soheili, M., & Esfahani, M. M. (2005). Effect of Ionic Strength on Settling of Activated Sludge. Iranian Journal of Environmental Health Science & Engineering, 2, 1-5.

has been cited by the following article:

TITLE: Effect of Deionization on Activated Sludge Characteristics: A Case Study of Activated Sludge Culture with Tap Water and Distilled Water

AUTHORS: Pascaline Sanga, Xiuqing Kong, Kai Zhang

KEYWORDS: Activated Sludge, Sequential Batch Reactor, Sludge Volume Index, Sludge Bulking, Filamentous Bacteria

JOURNAL NAME: Journal of Geoscience and Environment Protection, Vol.7 No.12, December 19, 2019

ABSTRACT: Activated sludge dewaterability and settleability properties are of prime importance in sludge treatment and disposal. Herein, we have experimentally examined the effect of deionization on activated sludge characteristics taking a case study of activated sludge inoculated in tap water and distilled water. The quality of the effluent, both distilled water and tap water were analyzed to determine the characteristics of activated sludge. Results indicated the increasing of the sludge volume index from 51.67 ml/g to 146.9 ml/g leading to the sludge bulking for sludge inoculated in distilled water. The Capillary Suction Time (CST) of sludge cultivated in distilled water varied from 23.1 to 38.4 s, which suggests poor dewaterability. These are due to the growth of some filamentous bacteria in distilled water system. These have further confirmed by light microscope images that showed a significant difference between the sludge systems cultivated in tap water and those grown in distilled water. The present work indeed advances our understanding of activated sludge treatment and would serve as a handy reference for researchers or scholars who want to deal with sewage water treatment.