MBBR载体填充率对水体修复效果的影响及底物降解动力学研究
Effect of MBBR carrier packing ratio on water remediation efficiency and substrate degradation kinetics
邹帆 1于清江 2董喜贵 3赵秋实 3李可 1向江山1
作者信息
- 1. 东北石油大学土木建筑工程学院,黑龙江 大庆 163318
- 2. 大庆水务集团有限公司,黑龙江 大庆 163318
- 3. 大庆油田设计院有限公司,黑龙江 大庆 163712
- 折叠
摘要
为了探讨MBBR中载体填充率对水体修复效果的影响,以城市黑臭水体为研究对象,考察载体填充率与有机物、氨氮、浊度、透明度修复效果响应关系,并建立MBBR系统底物降解动力学模型.结果表明:系统最佳填充率为15％,此时反应器对COD、NH3-N、浊度的最大去除率分别为78.51％、87.80％、96.54％,透明度从4.10 cm提高到33.00 cm,能保持载体流化状态下实现高效稳定的污染物去除效果,并得出在最佳填充率15％时的有机物、氨氮降解动力学常数.
Abstract
In order to discuss the effect of carrier packing ratio on water restoration efficiency,taking urban black and odorous water body as the research object,the relationship between carrier packing ratio and restora-tion efficiency of organic matters,ammonia nitrogen,turbidity and transparency was investigated,and a substrate degradation kinetic model was established in MBBR system.The results showed that,the optimal packing ratio of the system was 15％,at this time,the maximum removal rates of COD,NH3-N and turbidity were 78.51％,87.80％,96.54％respectively,the transparency of the reactor was increased from 4.10 cm to 33.00 cm,which could achieve efficient and stable pollutants removal effect under carrier fluidization state.The kinetic constants of organic matters and ammonia nitrogen degradation at the optimal packing ratio of 15％were obtained.
关键词
移动床生物膜反应器/填充率/生物载体/城市黑臭水体/挂膜启动/修复效能/降解动力学Key words
MBBR/packing ratio/biological carrier/urban black and odorous water/start-up of biofilm for-mation/remediation efficiency/degradation kinetics引用本文复制引用
基金项目
黑龙江省自然科学基金项目(B2015012)
中国石油科技创新基金项目(2016D-5007-0604)
出版年
2024
NETL
NSTL
万方数据