The Effects of Alkaline Treatment on Excess Sludge Supernatant Characteristics

Ting Ting Li; Zhi Min Fu

doi:10.4028/www.scientific.net/AMM.361-363.1046

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 361-363The Effects of Alkaline Treatment on Excess Sludge...

The Effects of Alkaline Treatment on Excess Sludge Supernatant Characteristics

Abstract:

The effect of alkali treatment on excess sludge supernatant characteristics was studied in this experiment. 4 mol/L sodium hydroxide solution was utilized to adjust the initial pH value of excess sludge to 9.0, 11.0 and 13.0. Batch experiments were operated in 35 °C shaking bath for 12 h. The soluble chemical oxygen demand (SCOD), protein and polysaccharide concentration in excess sludge supernatant was measured every 3 h. The experimental results showed that maximum amount of protein, polysaccharide and SCOD were obtained when the initial pH value was 13.0.

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Periodical:

Applied Mechanics and Materials (Volumes 361-363)

Pages:

1046-1049

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.361-363.1046

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Online since:

August 2013

Authors:

Ting Ting Li*, Zhi Min Fu

Keywords:

Alkali Treatment, Excess Sludge, Polysaccharide, Protein, SCOD

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* - Corresponding Author

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