Abstract:The research carried out methanol(for SBR1#) and ethanol (for SBR2#) as the sole carbon source, and investigated the effects of them on the efficiencies of biological phosphorus removal in the single-stage oxic process, respectively. The results showed that the average phosphorus removal contents and its efficiencies respectively reached at 6.56 mg/L, 52.63% in SBR1# and 11.22mg/L, 90.34% in SBR2# during the steady-state operation. For a typical SBR cycle, within aerobic period, the phosphate uptake rates could reach 1.62 and 5.31mgPO43--P/(gVSS×h) in SBR1# and SBR2#, respectively. In addition, the effluent phosphate concentration in SBR2# was below the detection limit. And the internal storage compounds were higher in SBR2# than that in SBR1# during a cycle. The results suggested ethanol as a carbon source seemed to be better for biological phosphorus removal in biological phosphorus removal system. During the idle period, more phosphorus was found to be released in SBR2# than that in SBR1# as more poly-p was degraded, due to the higher activity of PAOs in SBR2#.
邓莹, 王冬波, 李小明, 杨帆, 杨麒, 莫创荣, 曾光明. 甲醇和乙醇对SBR单级好氧生物除磷的影响研究[J]. 中国环境科学, 2011, 31(8): 1268-1273.
DENG Ying, WANG Dong-Bo, LI Xiao-Ming, YANG Fan, YANG Qi, MO Chuang-Rong, ZENG Guang-Ming. Effects of methanol and ethanol on biological phosphorus removal in sequencing batch reactor with single-stage oxic process. CHINA ENVIRONMENTAL SCIENCECE, 2011, 31(8): 1268-1273.