A new strategy for obtaining highly concentrated phosphorus recovery solution in biofilm phosphorus recovery process

作     者：Wanjing Yang Jie Shan Yang Pan Zhen Bi Yong Huang Hao Zhang Min Ni Wanjing Yang;Jie Shan;Yang Pan;Zhen Bi;Yong Huang;Hao Zhang;Min Ni

作者机构：School of Environmental Science and EngineeringSuzhou University of Science and TechnologySuzhou 215009China National&Local Joint Engineering Laboratory for Municipal Sewage Resource Utilization TechnologySuzhou University of Science and TechnologySuzhou 215009China 

出 版 物：《Journal of Environmental Sciences》 (环境科学学报（英文版）)

年 卷 期：2022年第34卷第2期

页      面：366-375页

核心收录：

学科分类：083002[工学-环境工程] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 08[工学] 

基　　金：supported by the National Natural Science Foundation of China(Nos.51778390,51938010) Natural Science Foundation of Jiangsu Province(No.BK20171219) the Graduate Research and Innovation Projects of Jiangsu Province(No.KYCX19_2032) Financial support was also provided by the Collaborative Innovation Center of Water Treatment Technology and Material of Jiangsu Province and the National and Local Joint Engineering Laboratory of Municipal Sewage Resource Utilization Technology 

主　　题：Biofilm sequencing batch reactor Phosphorus storage capacity Phosphorus release Phosphorus recovery 

摘      要：Recovery of phosphorus(P)from wastewater is of great significance for alleviating the shortage of P *** present,the P recovery process is faced with the problem of excessive organic carbon consumption when obtaining a P-concentrated recovery *** study proposed a new strategy to obtain a more highly concentrated P recovery solution with minimal carbon consumption by strengthening the P storage capacity of the biofilm.A biofilm sequencing batch reactor(BSBR)process was modified to treat synthetic *** effect of the dissolved oxygen(DO)concentration on the P storage capacity of the biofilm was investigated at DO concentrations of DO 3.5 mg/L(P_(L))and DO 6.5 mg/L(P_(H)).The results showed a maximum P storage of 101.2 and 149.6 mg-P/g-mixed liquid suspended solids under the two *** the P storage capacity of the biofilm resulted in a net increase in the P recovery rate,which was as high as 66.96%in a harvesting cycle,and total soluble P220 mg/L in the P recovery solution was successfully ***,the carbon cost of P recovery in the BSBR was reduced to 41.57 g-chemical oxygen demand/gP,and the carbon utilization efficiency was *** highlight the new strategy,the P recovery performance of the BSBR was given and the relationship between P content and anaerobic P release was *** addition,the changes in the microbial communities under P_(L) and P_(H) conditions were analyzed.