改性生物质炭与聚磷菌联合去除废水中的磷  

Removal of phosphorus from wastewater by combination of modified biochar and phosphate-accumulating organisms

作　　者：朱雯[1] 王鑫[1] 杨柳燕[1] ZHU Wen WANG Xin YANG Liuyan(School of the Environment, Nanjing University,State Key Laboratory of Pollution Control and Resource Reuse, Nanjing 210023, China)

机构地区：[1]南京大学环境学院污染控制与资源化研究国家重点实验室,南京210023

出　　处：《环境工程学报》2016年第11期6241-6248,共8页Chinese Journal of Environmental Engineering

基　　金：江苏省科技厅课题(BE2012736);国家水体污染控制与治理科技重大专项(2012ZX07101006)

摘　　要：为了探索改性生物质炭与聚磷菌联合去除废水中磷的效果,将铁改性生物质炭以及聚磷菌投加入序批式废水处理装置中,间隙进水,间隔一定时间测定水中磷浓度随时间变化,并探讨不同水力停留时间、进水COD浓度以及初始磷浓度对联合除磷的影响。研究结果表明,铁改性生物质炭和聚磷菌联用能高效去除废水中磷,在30℃、水力停留时间6h、COD浓度280 mg·L^(-1)、初始磷浓度5 mg·L^(-1)并且持续曝气条件下,联合除磷效果最优,其磷去除率可达97.94%。铁改性生物质炭和聚磷菌联合能有效去除废水中磷,为废水除磷提供了新技术。To investigate the ability of the combination of modified biochar and phosphate-accumulating organisms（ PAOs） to remove phosphorus from wastewater,the iron-modified biochar and PAOs were added to the sequencing batch equipment with intermittent inflow,and phosphorus concentrations in the effluent water were determined by the ascorbic acid method. In addition,the effects of hydraulic retention time,organics concentration,and initial phosphorus concentration on the phosphorus removal rates were assessed. The results showed that the combination of iron-modified biochar and PAOs showed good performance on the removal of phosphorus from wastewater. Under the condition of 30 ℃,HRT = 6 h,COD = 280 mg·L-1,initial phosphorus concentration = 5 mg·L-1,and continuous aeration,the phosphorus removal rate reached 97. 94%. Therefore,the combination of modified biochar and PAOs can effectively remove phosphorus from wastewater,and provides a new technology for phosphorus removal in wastewater treatment.

关 键 词：改性生物质炭 聚磷菌 联合除磷 

分 类 号：X703[环境科学与工程—环境工程]