竹屑载体生物膜-活性污泥一体化SBR集成工艺的脱氮性能  

Performance of Integrated SBR Process with Bamboo Carrier Biofilm-Activated Sludge for Nitrogen Removal

作　　者：陈园 蔡丽丽 刘壮壮 邵磊 陈姝婷 黄高鑫 刘俊 CHEN Yuan;CAI Lili;LIU Zhuangzhuang;SHAO Lei;CHEN Shuting;HUANG Gaoxin;LIU Jun(Key Laboratory of Environmental Pollution Control and Waste Utilization of Anhui Province,Anhui Jianzhu University,Hefei 230601,China;Anhui Zhonghuan Environmental Protection Technology Co.,Ltd.,Hefei 230051,China)

机构地区：[1]安徽建筑大学环境污染控制与废弃物资源化利用安徽省重点实验室,安徽合肥230601 [2]安徽中环环保科技股份有限公司,安徽合肥230051

出　　处：《净水技术》2022年第1期83-89,共7页Water Purification Technology

基　　金：国家自然科学基金项目(51978003,51578002)。

摘　　要：采用竹屑作为微生物载体构建生物膜-活性污泥一体化系统,系统置于两段进水脉冲式SBR内运行,对低C/N生活污水的脱氮特性进行研究。研究了不同温度、C/N、水力停留时间(HRT)等参数对系统的脱氮性能影响。结果表明,温度为25℃、C/N=4.0、HRT=12 h时,COD_(Cr)、总氮、氨氮质量浓度分别从155.35、35.79、32.55 mg/L降至32.03、8.05、3.59 mg/L,平均去除率分别为79.38%、77.50%、88.97%,满足国家污水处理一级A标准(GB 18918—2002)。竹屑载体生物膜-活性污泥一体化污水处理技术通过调节运行参数能高效去除低C/N污水中的各项污染物,为市政污水脱氮提供理论基础。A biofilm-activated sludge integrated system was constructed by using bamboo debris as microbial carrier.System was operated in a two-stage influent pulsed SBR,the denitrification characteristics of low C/N domestic sewage were studied.The effects of temperature,C/N and hydraulic retention time(HRT)on the denitrification performance of system were studied.Results showed that when the temperature was 25℃,C/N=4.0,HRT=12 h,COD_(Cr),TN,ammonia nitrogen mass concentration decreased from 155.35,35.79,32.55 mg/L to 32.03,8.05,3.59 mg/L,average removal rate reached 79.38%,77.50%,88.97%,respectively,which reached the national sewage treatment first grade A criteria(GB 18918—2002).Integrated wastewater treatment technology of bamboo debris carrier biofilm-activated sludge could effectively remove various pollutants in low C/N wastewater by adjusting operating parameters,which provided a theoretical basis for the denitrification of municipal wastewater.

关 键 词：竹屑载体生物膜 低碳氮比 高效脱氮 脉冲式SBR工艺 固体碳源 

分 类 号：X703[环境科学与工程—环境工程]