Modeling of solubilization dynamics of manure organic matter and phosphorus as a function of pH control and enzyme supplementation

• Autorzy: Gungor K. , Alkan-Ozkaynak A. , Karthikeyan K. G. , Evrendilek F. , Gunasekaran S.

Identyfikatory

DOI

10.5277/epe160211

• Języki publikacji: EN

Abstrakty

EN

The potential use of commercial enzyme and pH control has been investigated for enhancing dairy manure fermentation and modeling dissolved organic matter and orthophosphate (PO₄-P) dynamics of fermenters. Anaerobic lab-scale batch fermenters (initial total solids concentration (TS_o) = 3.8 wt. %) were fed with separated dairy manure solids and operated under pH controls (5 and 9.5). The enzyme-supplemented alkaline fermenters clearly outperformed the acidic fermenters in terms of chemical oxygen demand (COD) solubilization: ca. 50% vs. 20%, respectively. Soluble PO₄-P in the acidic fermenters was comparably higher but constituted less than 20% of total phosphorus. Better soluble COD (>80%) and soluble PO₄-P (>70%) yields were noted for the dilute fermenters (TS_o = 0.6–0.8 wt. %). An existing model was retrofitted, calibrated and validated for simulating dynamics of soluble COD, volatile fatty acids, and soluble orthophosphate under various pH and enzyme conditions.

Słowa kluczowe

EN

biogeochemistry; biological materials; pH; phosphorus

PL

biogeochemia; materiały biologiczne; pH; fosfor

• Wydawca: Oficyna Wydawnicza Politechniki Wrocławskiej
• Czasopismo: Environment Protection Engineering
• Rocznik: 2016
• Tom: Vol. 42, nr 2
• Strony: 155--170
• Opis fizyczny: Bibliogr. 26 poz., tab., rys.

Twórcy

autor

Gungor K.

• Department of Environmental Engineering, Abant Izzet Baysal University, Bolu 14280, Turkey

autor

Alkan-Ozkaynak A.

• Department of Biological Systems Engineering, 460 Henry Mall, University of Wisconsin–Madison, Madison, WI 53706, USA.

autor

Karthikeyan K. G.

• Department of Biological Systems Engineering, 460 Henry Mall, University of Wisconsin–Madison, Madison, WI 53706, USA

autor

Evrendilek F.

• Department of Environmental Engineering, Abant Izzet Baysal University, Bolu 14280, Turkey

autor

Gunasekaran S.

• Department of Biological Systems Engineering, 460 Henry Mall, University of Wisconsin–Madison, Madison, WI 53706, USA.

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