东南大学学报（自然科学版）2012，Vol.42Issue(1)：94-98,5.DOI:10.3969/j.issn.1001-0505.2012.01.018
进水碳磷比对连续流反硝化除磷工艺脱氮除磷效果的影响
Effect of COD-to-phosphorus ratio on performance of continuous-flow two-sludge process
摘要
Abstract
The effect of COD (chemical oxygen demand)-to-phosphorus ratio (m(C)/m(P)) was investigated in a continuous-flow two-sludge process. The influent concentrations of COD and ammonia were maintained at about 250 and 45 mg/L respectively. The ratio was adjusted by the TP (total phosphorus) concentration. The results show that when the m(C)/m(P) are 64. 1, 42. 0, 33. 0 and 17. 8, the TP removal efficiencies are 93. 2% , 92. 0% , 78. 3% and 65. 8% respectively. Decreasing of ratio results in low removal efficiency obviously. When the ratio is more than 42. 0, the effluent TP concentration is less than 0. 5 mg/L. However, as the ratio decrease the phosphorus release amount and net phosphorus uptake amount would increase. The net phosphorus uptake a-mounts may get 3. 63, 5. 33, 6. 26 and 10. 3 mg/L when the m(C)/m(P) are 64.1,42.0,33.0 and 17. 8. The decrease of m(C)/m(P)benefits the stability of the biological system but the effluent TP concentration may increase. This could be reduced by extending hydraulic retention time in the posted anaerobic tank. There is no remarkable effect of m(C)/m(P)on COD and TN( total nitrogen) removal efficiencies. The COD removal efficiency keeps at 85. 6% to 93. 1% and ammonia removal efficiency is more than 93%.关键词
碳磷比/反硝化除磷/脱氮除磷/连续流双污泥工艺Key words
COD-to-phosphorus ratio/ denitrifying phosphorus removal/ nitrogen and phosphorus removal/ continuous-flow two-sludge process分类
资源环境引用本文复制引用
史静,吕锡武,朱光灿,朱文韬..进水碳磷比对连续流反硝化除磷工艺脱氮除磷效果的影响[J].东南大学学报（自然科学版）,2012,42(1):94-98,5.基金项目
国家自然科学基金资助项目(51078074)、教育部科学研究重大资助项目(308010)、江苏省科技支撑计划资助项目(BE2008667). （51078074）
