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Hydrogen Fermentation of Organic Wastewater With High Ammonium Concentration via Electrodialysis System

Hydrogen Fermentation of Organic Wastewater With High Ammonium Concentration via Electrodialysis System

Ao Xia, Pengfei Wei, Chihe Sun, Pau-Loke Show, Yun Huang, Qian Fu

Bioresour Technol. 2019 Sep;288:121560.

PMID: 31170688

Abstract:

An advanced electrodialysis fermentation system was set up to remove ammonium during hydrogen fermentation. When the voltage was increased from 0 to 6 V, the average ammonium removal rate was improved from 8.7 to 31.1 mg/L/h at an initial ammonium concentration of 3000 mg/L. A model based on the Nernst-Plank equation and porous media properties of ion exchange membranes was successfully implemented to predict the ammonium removal performance. When such a system was fed with synthetic wastewater at an ammonium concentration of 3000 mg/L for hydrogen fermentation, a significant increase in specific hydrogen yield was observed in the experiment group at 4 V. Specific hydrogen yield was 225.0 mL/g glucose, this value is 47.9% higher than the control. Moreover, ammonium concentration in experiment group was reduced to 701.6 mg/L at 72 h when voltage was set at 4 V, which is 63.7% lower than that in 0 V experiment group.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12022025	Ammonium heptafluorotantalate(V)		12022-02-5	Price

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