A kinetic evaluation of anaerobic treatment of swine wastewater at two temperatures in a temperate climate zone

作者：Lim Seung Joo^*; Fox Peter

来源：Bioresource Technology, 2011, 102(4): 3724-3729.

DOI：10.1016/j.biortech.2010.11.113

• Swine wastewater
• Bioreactor
• Biofilter
• Granule
• Static granular bed reactor

A static granular bed reactor (SGBR) was used to treat swine wastewater at 24 and 16 degrees C. At 24 degrees C, the organic loading rate (OLR) was 0.7-5.4 kg COD/m(3) day and the average chemical oxygen demand (COD) removal efficiency was 88.5%, respectively. Meanwhile, at 16 C, the OLR was 1.6-4.0 kg COD/m(3) day and the average COD removal efficiency was 68.0%, respectively. The SGBR acted as a bioreactor as well as a biofilter. After backwashing, the recovery of COD removal was not a function of an OLR but recovery time, while that of TSS removal was not a function of either recovery time or the OLR. The maximum substrate utilization rate (k(max)) ratio was 1.89 between 24 and 16 degrees C, and the half velocity constant (K-s) ratio was 1.22, and the maximum specific growth rate (mu(max)) ratio was 4.71. In addition, the temperature-activity coefficient in this study was determined to be 1.09.

• 出版日期2011-2