柳广飞

个人信息Personal Information

副教授

博士生导师

硕士生导师

性别:男

毕业院校:大连理工大学

学位:博士

所在单位:环境学院

学科:环境工程. 环境科学

办公地点:环境学院711室

联系方式:0411-84706252

电子邮箱:guangfeiliu@dlut.edu.cn

扫描关注

论文成果

当前位置: 中文主页 >> 科学研究 >> 论文成果

Effects of carbon-nitrogen ratio on nitrogen removal in a sequencing batch reactor enhanced with low-intensity ultrasound

点击次数:

论文类型:期刊论文

发表时间:2013-11-01

发表刊物:BIORESOURCE TECHNOLOGY

收录刊物:SCIE、EI、PubMed、Scopus

卷号:148

页面范围:128-134

ISSN号:0960-8524

关键字:C/N ratio; Nitrogen removal; Low-intensity ultrasound; SBR; DGGE

摘要:A sequencing batch reactor (SBR) enhanced with low-intensity ultrasound was designed to study the removal of nitrogen under different carbon-nitrogen (C/N) ratios. The results showed that the removal efficiencies of CODCr and nitrogen were inversely proportional to C/N ratios. The CODCr of the effluent in the control reactor (CR) and the low-intensity ultrasound-enhanced reactor (UER) were lower than 40 mg L-1. With a decrease in C/N ratio, the NH4+-N removal load of the CR showed little change, while the NH4+-N removal load of UER increased from 21.2 to 56.1 mg NH4+-N/g mixed liquid suspended solids per day. To further understand effects of low-intensity ultrasound, the denaturing gel gradient electrophoresis (DGGE) analysis showed that the similar coefficients of the community structures in the UER and CR were 86%, 52% and 29% when the C/N ratios were 15:1, 10:1, 5:1, respectively. (C) 2013 Elsevier Ltd. All rights reserved.