土木与环境工程学报（中英文）2024，Vol.46Issue(4)：211-219,9.DOI:10.11835/j.issn.2096-6717.2023.041
增强型生态浮床填料筛选及工况优化
The filler selection and working condition optimization of enhanced ecological floating bed
摘要
Abstract
Ecological floating beds are widely used as an economical and environmentally friendly technology for the treatment of black smelly water bodies,while their treatment capacity is limited by the plant root area and the depth of plants reaching the water body.In this study,the enhancement effects and microbial mechanism of different fillers on the treatment capacity of ecological floating beds were investigated by constructing ecological floating beds with interspecies of Myriophyllum aquaticum and Iris sibirica plants through suspension balls,biological ropes,elastic and combined fillers respectively.Furthermore,the optimal addition of selected filter and its kinetic model of pollutant removal from the floating bed was investigated.The results showed that the best removal rates of COD,ammonia nitrogen and total phosphorus were>99%,43.85% and 14.03%,respectively.The highest microbial abundance,the most uniform species composition distribution and the highest microbial diversity on the surface of the bio-rope filler have been observed,and the bio-rope filler can enrich nitrogen and phosphorus removal functional bacteria such as Flavobacterium,Exiguobacterium,Chryseobacterium,Microbacterium and Caulobacter.12.5 m/m3 is the best amount of bio-rope filler for the remediation of mild black smelly water bodies,and the corresponding removal rates of COD,ammonia nitrogen,and total phosphorus are respectively 96.4%,38.5% and 56.6% .The kinetic model fitting revealed that the primary kinetic model could better fit the ammonia nitrogen and COD degradation patterns of bio-rope-enhanced ecological floating bed.关键词
生态浮床/强化填料/微生物群落结构/反应动力学/生物绳Key words
ecological floating bed/strengthen fillers/microbial community structure/reaction dynamics/bio-rope filler分类
资源环境引用本文复制引用
何强,程鸿,吕存浩,王辛戈,陈治池,胡美珩,蔡然,张功良,宋忱馨,李德祥..增强型生态浮床填料筛选及工况优化[J].土木与环境工程学报（中英文）,2024,46(4):211-219,9.基金项目
重庆市自然科学基金(CSTB2022NSCQ-BHX0038) （CSTB2022NSCQ-BHX0038）
住房和城乡建设部科学技术计划项目(2020-R-027) Chongqing Natural Science Foundation(No.CSTB2022NSCQ-BHX0038) （2020-R-027）
Science and Technology Plan Project of the Ministry of Housing and Urban-Rural Development(No.2020-R-027) （No.2020-R-027）
