A pilot-plant study was conducted to evaluate the performance of a moving-bed biofilm reactor process using PVA-gel beads as a biocarrier. Real primary-settled wastewater was fed to the pre-denitrification system and removals of nitrogenous and organic contaminants were evaluated over a 1-year period. The results demonstrated that at a total nitrogen (TN) loading of 18 mg/L.h, a TN removal efficiency in keeping with and even exceeding the theoretical maximum efficiency based on the level of internal recycle, was possible and a nitrification rate of 15 mg/L.h was sustained with a HRT of only 2.5 h at 15 °C. Furthermore, soluble COD and BOD5 in the effluent of the pilot plant were reduced to levels well below most regulatory discharge limits. In addition, the possibility of using this biocarrier in a system, including the elimination of waste organic sludge, was discussed.
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Research Article|
April 01 2007
A pilot-plant study of a moving-bed biofilm reactor system using PVA gel as a biocarrier for removals of organic carbon and nitrogen Available to Purchase
J.D. Rouse;
*Kuraray Co., Ltd., Membrane Dept., Sakazu 1621, Kurashiki, Okayama, 710-8622, Japan (E-mail: [email protected])
E-mail: [email protected]
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O. Burica;
O. Burica
**Domžale-Kamnik Wastewater Treatment Plant, Študljanska 91, 1230 Domžale, Slovenija (E-mail: [email protected]; [email protected]; [email protected])
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M. Stražar;
M. Stražar
**Domžale-Kamnik Wastewater Treatment Plant, Študljanska 91, 1230 Domžale, Slovenija (E-mail: [email protected]; [email protected]; [email protected])
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M. Levstek
M. Levstek
**Domžale-Kamnik Wastewater Treatment Plant, Študljanska 91, 1230 Domžale, Slovenija (E-mail: [email protected]; [email protected]; [email protected])
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Water Sci Technol (2007) 55 (8-9): 135–141.
Citation
J.D. Rouse, O. Burica, M. Stražar, M. Levstek; A pilot-plant study of a moving-bed biofilm reactor system using PVA gel as a biocarrier for removals of organic carbon and nitrogen. Water Sci Technol 1 April 2007; 55 (8-9): 135–141. doi: https://doi.org/10.2166/wst.2007.251
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