东南大学学报（自然科学版）2013，Vol.43Issue(4)：819-823,5.DOI:10.3969/j.issn.1001-0505.2013.04.027
诱导结晶对反硝化除磷的强化作用
Enhancing effect of induced crystallization process on denitrifying phosphorus removal
摘要
Abstract
To investigate the enhancing effect of induced crystallization on the denitrifying phosphorus removal,experiments were carried out by combining the two-sludge system and the induced crystallization process.The results show that the phosphorus recovery rate of induced crystallizer is not greatly improved when the mole ratio of n(Ca2+)/n(PO43--P) reaches 5∶1.The optimum value of n (Ca2 +)/n (PO43--P) is 3∶1 which achieves a phosphorus recovery rate of 62.05 ％.Appropriately increasing the amount of phosphorus recovery does not have a significant effect on the amount of anaerobic phosphorus release.When the amount of phosphorus release maintains at (13.44 ± 0.55)mg/L,the amount of phosphorus uptake decreases from 21.11 to 16.42 mg/L.The ratio of phosphorus uptake amount to release amount falls from 1.51 to 1.24 along with a high recovery rate,which means that the burden of bio-P removal is lightened.During the prior period of denitrifying phosphorus removal,the rate of phosphorus uptake goes down while the amount of phosphorus recovery increases,but the reaction of denitrifying phosphorus removal all ends after 30 min.Chemical phosphorus recovery do not cause negative effect on biological phosphorus removal.Moreover,the process which combines biological phosphorus removal with chemical phosphorus recovery can ensure that the effluent quality meets the related requirements under the condition of low influent CODto-phosphorus mass ratio.关键词
双污泥/反硝化除磷/诱导结晶/磷回收/厌氧释磷/缺氧聚磷Key words
two-sludge/denitrifying phosphorus removal/induced crystallization/phosphorus recovery/anaerobic phosphorus release/aerobic phosphorus uptake分类
资源环境引用本文复制引用
顾倩,吕锡武,史静,李洁..诱导结晶对反硝化除磷的强化作用[J].东南大学学报（自然科学版）,2013,43(4):819-823,5.基金项目
国家自然科学基金资助项目(51078074)、教育部科学技术研究重大资助项目(308010)、江苏省科技支撑计划资助项目(BS2008667). （51078074）
