摘要
人工快速渗滤(CRI)系统是一种较有应用前景的污水处理工艺,但一直存在运行管理难的问题。以重庆某CRI系统为研究对象,通过工艺进出水水质分析、24 h模拟过滤研究、现场活性污泥及生物强化小试研究,考察了其冬季期间的生活污水处理效果。结果表明,该CRI系统出水COD不能稳定达标;出水NH3-N和TP均不达标。基于此,提出了提高调节沉淀池HRT、强化前端混凝处理、优化快渗池处理单元等措施以升级改造现有工艺。
The constructed rapid infiltration （CRI） system is a promising process for wastewater treatment; however, it is often associated with operational and management problems. In this study, the removal efficiency of COD, NH3-N, and TP during the winter in a CRI system in Chongqing was investigated. The influent and ef- fluent data of the CRI, 24 h continuous filtering data, laboratory-scale SBR for sewage treatment, and nitrifying bacteria bioaugmentation data were considered. The results indicated that the removal efficiency for COD was poor, and the NH3-N and TP in the effluent did not meet the emission standards. Based on the above results, a technological upgrading scheme is presented briefly in this paper. The upgrade scheme includes increasing the HRT in the regulating reservoir, enhancing the front-end coagulation process, and optimizing the fast infiltration tank unit of the existing CRI system.
出处
《环境工程学报》
CAS
CSCD
北大核心
2016年第9期4927-4932,共6页
Chinese Journal of Environmental Engineering
基金
中国科学院"西部之光"人才培养计划重点项目
中国科学院科技服务网络计划项目子课题(KFJ-SW-STS-175)
关键词
CRI系统
人工快渗池
生活污水
过滤截留
吸附
生物降解
CRI system
fast filtering tank
sewage
filtration interception
adsorption
biodegradation
