化学除磷方式对城镇污水处理厂生物除磷影响研究
Study on Impact of Chemical Phosphorous Removal Mode on Biological Phosphorous Removal in WWTPs
秦少波 1范波1
作者信息
- 1. 中国市政工程华北设计研究总院有限公司 天津 300074
- 折叠
摘要
基于污水厂生物段活性污泥厌氧释磷模拟试验及全流程PO43--P迁移转化分析,对采用同步化学除磷和后置化学除磷的城镇污水处理厂进行生物除磷功能研究.结果表明:同步化学除磷会在一定程度削弱系统生物除磷功能,且化学药剂投加量越多,影响越大,甚至会使生物除磷功能完全丧失;后置化学除磷对生物除磷功能完全没有影响,可节省药剂使用量;具有生物除磷能力的活性污泥系统更有利于缺氧段反硝化除磷的工程实现和降低建设、运行成本.
Abstract
Based on the simulation experiment of anaerobic phosphorus release from activated sludge in the biological section of sewage treatment plants and the analysis of PO43--P migration and transformation throughout the entire process,the biological phosphorus removal in urban sewage treatment plants using synchronous chemical phosphorus removal and post-chemical phosphorus removal was studied.The results show that simultaneous chemical phosphorous removal process will weaken biological phosphorous removal to a certain extent,and the more the chemical agents are added,the greater the impact,even the biological phosphorus removal function will be completely lost.Post-chemical phosphorous removal process has no impact on the biological phosphorus removal function and can save the amount of chemicals used.The activated sludge system with biological phosphorus removal capacity is more conducive to the realization of denitrifying phosphorus removal in the anoxic section,and reduces the construction and operation costs.
关键词
同步化学除磷/后置化学除磷/生物除磷/厌氧释磷/反硝化除磷Key words
simultaneous chemical phosphorous removal/post-chemical phosphorous removal/biological phosphorous removal/anaerobic phosphorus release/denitrifying phosphorus removal引用本文复制引用
出版年
2024
NETL
NSTL
万方数据