Inhibition Effects of Inorganic and Polymer Coagulants on Acidogenic Fermentation

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Laboratory-scale batch experiments were conducted to investigate the possible inhibition of acidogenic volatile fatty acids (VFAs) fermentation by an inorganic and a polymer coagulant. It was found that the conversion from organic matter to VFAs decreased more than 10% when the dosages of coagulant exceeded 46 (mgAl/L) and 120 (mgFe/L). Inhibition by Al was greater than that Fe. When the dosage of polymer was over 102 (mg/L), VFAs conversion fell to below 2%. The protein content was more affected than the carbohydrate content. Ultrasonic treatment increased the VFAs conversion for synthetic sludge at both treated with either inorganic coagulant or polymer

Info:

Periodical:

Materials Science Forum (Volumes 544-545)

Edited by:

Hyungsun Kim, Junichi Hojo and Soo Wohn Lee

Pages:

79-82

Citation:

J. O. Kim and J. T. Jung, "Inhibition Effects of Inorganic and Polymer Coagulants on Acidogenic Fermentation ", Materials Science Forum, Vols. 544-545, pp. 79-82, 2007

Online since:

May 2007

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Price:

$38.00

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[10] [20] [30] [40] [50] [60] 0 50 100 150 200 250 Dose (mg Conversion ratio (%) Sonication Without sonication Polymer Fe Al Control.

[10] [20] [30] [40] [50] [60] 0 50 100 150 200 250 Dose (mg/L) Conversion ratio (%) Sonication Without sonication Polymer Fe Al Control.

[10] [20] [30] [40] [50] [60] 0 50 100 150 200 250 Dose (mg Conversion ratio (%) Sonication Without sonication Polymer Fe Al Control.

[10] [20] [30] [40] [50] [60] 0 50 100 150 200 250 Dose (mg/L) Conversion ratio (%) Sonication Without sonication Polymer Fe Al Control.

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