[1]史静,吕锡武,朱光灿,等.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.[doi:10.3969/j.issn.1001-0505.2012.01.018]
 Shi Jing,Lü Xiwu,Zhu Guangcan,et al.Effect of COD-to-phosphorus ratio on performance of continuous-flow two-sludge process[J].Journal of Southeast University (Natural Science Edition),2012,42(1):94-98.[doi:10.3969/j.issn.1001-0505.2012.01.018]
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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()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
42
期数:
2012年第1期
页码:
94-98
栏目:
环境科学与工程
出版日期:
2012-01-18

文章信息/Info

Title:
Effect of COD-to-phosphorus ratio on performance of continuous-flow two-sludge process
作者:
史静吕锡武朱光灿朱文韬
(东南大学能源与环境学院,南京 210096)
Author(s):
Shi JingLü XiwuZhu GuangcanZhu Wentao
(School of Energy and Environment, Southeast University, Nanjing 210096, China)
关键词:
碳磷比反硝化除磷脱氮除磷连续流双污泥工艺
Keywords:
COD-to-phosphorus ratio denitrifying phosphorus removal nitrogen and phosphorus removal continuous-flow two-sludge process
分类号:
X703
DOI:
10.3969/j.issn.1001-0505.2012.01.018
摘要:
针对连续流双污泥反硝化除磷工艺, 考察进水碳磷质量比(m(C)/m(P))对化学需氧量(COD)、氨氮和总磷(TP)去除效果的影响. 系统进水COD和氨氮分别保持在250和45 mg/L左右, 通过改变进水TP浓度来调整m(C)/m(P). 实验结果表明:在m(C)/m(P)比分别为64.1, 42.0, 33.0和17.8的情况下, TP去除率分别为93.2%, 92.0%, 78.3%和65.8%, 除磷效率明显降低. 在m(C)/m(P)> 42.0的情况下, 出水TP低于0.5 mg/L.随着m(C)/m(P)的降低, 反硝化聚磷污泥释磷量和净聚磷量增加, 净聚磷量分别为3.63, 5.33, 6.26和10.3 mg/L. m(C)/m(P)减小有利于提高生物除磷系统的稳定性, 但出水磷浓度会有所增加, 可通过适当延长后置曝气池停留时间来降低出水磷浓度. m(C)/m(P)对COD的去除和脱氮的效果影响不大, COD去除率保持在85.6%~93.1%, 氨氮的去除率大于93%.
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 amounts 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%.

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备注/Memo

备注/Memo:
作者简介:史静(1984—),女,博士生;吕锡武(联系人),男,博士,教授,博士生导师,xiwulu@seu.edu.cn.
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).
引文格式: 史静,吕锡武,朱光灿,等.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.[doi:10.3969/j.issn.1001-0505.2012.01.018]
更新日期/Last Update: 2012-01-20