[1]顾倩,吕锡武,史静,等.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.[doi:10.3969/j.issn.1001-0505.2013.04.027]
 Gu Qian,Lü Xiwu,Shi Jing,et al.Enhancing effect of induced crystallization process on denitrifying phosphorus removal[J].Journal of Southeast University (Natural Science Edition),2013,43(4):819-823.[doi:10.3969/j.issn.1001-0505.2013.04.027]
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诱导结晶对反硝化除磷的强化作用()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
43
期数:
2013年第4期
页码:
819-823
栏目:
环境科学与工程
出版日期:
2013-07-20

文章信息/Info

Title:
Enhancing effect of induced crystallization process on denitrifying phosphorus removal
作者:
顾倩12吕锡武1史静1李洁12
1东南大学能源与环境学院, 南京 210096; 2无锡太湖水环境工程研究中心, 无锡 214000
Author(s):
Gu Qian12 Lü Xiwu1 Shi Jing1 Li Jie12
1School of Energy and Environment, Southeast University, Nanjing 210096, China
2Engineering Research Center of Taihu Lake Water Environment, Wuxi 214000, China
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
Keywords:
two-sludge denitrifying phosphorus removal induced crystallization phosphorus recovery anaerobic phosphorus release aerobic phosphorus uptake
分类号:
X703
DOI:
10.3969/j.issn.1001-0505.2013.04.027
摘要:
以双污泥-诱导结晶工艺为研究对象,考察诱导结晶工艺回收磷对反硝化除磷的强化作用.结果表明,当摩尔比n(Ca2+)/n(PO3-4-P)提高到5∶1时,反应器内回收率没有明显的提高,最佳n(Ca2+)/n(PO3-4-P)为3∶1,回收率可达62.05%;提高磷回收量对厌氧释磷影响并不大,当释磷量保持在(13.44±0.55)mg/L时,聚磷量由21.11 mg/L降至16.42 mg/L,聚磷量与释磷量之比从1.51降至1.24,化学回收磷减轻了生物除磷负担;提高结晶磷回收量会降低聚磷速率,但反硝化聚磷反应均在30min之后停止,化学回收磷不会对生物除磷造成负面影响,并且生物除磷与化学回收磷相结合的工艺可以在较低进水碳磷质量比的情况下保证出水达到国家排放标准.
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(PO3-4-P)reaches 5∶1. The optimum value of n(Ca2+)/n(PO3-4-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 16.42mg/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 30min. 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 COD-to-phosphorus mass ratio.

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备注/Memo

备注/Memo:
作者简介: 顾倩(1987—),女,硕士生;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).
引文格式: 顾倩,吕锡武,史静,等.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. [doi:10.3969/j.issn.1001-0505.2013.04.027]
更新日期/Last Update: 2013-07-20