| 无排泥条件下的膜-生物反应器系统处理焦化废水可行性研究 | |
| 赵文涛 ; 黄霞 ; 李笃中 ; 何苗 ; 袁媛 ; ZHAO Wen-tao ; HUANG Xia ; LEE Duu-jong ; HE Miao ; YUAN Yuan | |
| 2010-06-10 ; 2010-06-10 | |
| 关键词 | 焦化废水 膜-生物反应器 无污泥排放 疏水酸性组分 三维荧光光谱 腐殖质类物质 coke wastewater membrane bioreactor complete sludge retention hydrophobic acids fluorescence excitation-emission matrix humic substances-like matters X703 |
| 其他题名 | Feasibility Study on Coke Wastewater Treatment Using Membrane Bioreactor(MBR) System with Complete Sludge Retention |
| 中文摘要 | 小试规模浸没式厌氧/缺氧/好氧-膜-生物反应器(A1/A2/O-MBR)系统用于处理实际焦化废水,在无排泥条件下连续运行160 d.考察了长期运行条件下系统对不同污染物的去除性能,并通过亲疏水组分分离和三维荧光光谱法,对进出水焦化废水中溶解性有机物(DOMs)特征进行分析.结果表明,A1/A2/O-MBR系统能稳定去除88.0%±1.6%的COD,>99.9%的挥发酚,99.4%±0.2%的浊度和98.3%±1.9%的NH4+-N,相应的平均出水浓度分别为249 mg/L±44 mg/L、0.18 mg/L±0.05 mg/L、1.0NTU±0.2 NTU和4.1 mg/L±4.3 mg/L;最大TN去除率可达到74.9%.在系统160 d运行过程中,MLVSS/MLSS维持在90.2%±1.0%,没有出现无机物的积累;污泥的表观产率(MLVSS/COD)逐渐降低并最终稳定在0.035 kg/kg.在焦化废水DOMs的疏水酸性、疏水中性、疏水碱性和亲水物4种组分中,疏水酸性物是进出水中最主要的溶解性有机碳(DOC)和色度组分,分别占进出水总DOC的70%和67%,总色度的75%和76%.三维荧光光谱分析表明腐殖质类物质是系统出水中残留的主要难降解有机物和致色物质.; A laboratory-scale submerged anaerobic-anoxic-oxic membrane bioreactor(A_1/A_2/O-MBR) system was used to treat real coke wastewater and operated continuously for 160 d with complete sludge retention.Pollutants removal performance of the system was investigated through long-term operation.The characteristics of dissolved organic matters(DOMs) in influent and effluent coke wastewater were analyzed using hydrophilic/hydrophobic fractionation,and further discussed based on fluorescence excitation-emission-matrix(EEM).The results showed that A_1/A_2/O-MBR system could stably remove 88.0%�6% of COD,>99.9% of volatile phenol,99.4%�2% of turbidity,and 98.3%�9% of(NH~+_4-N),with individual average effluent concentrations of 249(mg/L)�(mg/L),0.18(mg/L)�05 (mg/L),1.0 NTU�2 NTU and 4.1(mg/L)�3(mg/L),respectively;moreover,the maximum TN removal rate also reached 74.9%.During the whole operation period,the MLVSS/MLSS appeared to be constant as 90.2%�0% and no inorganic matters accumulation occurred.The observed sludge production(MLVSS/COD) decreased with time and stabilized at 0.035 kg/kg.DOMs in coke wastewater were fractionated as hydrophobic acids(HOA), hydrophobic neutrals(HON),hydrophobic bases(HOB) and hydrophilic substances (HIS);HOA was found to be the most abundant constituent in terms of DOC and color intensity both in influent and effluent,which accounted for 70% and 67% of total DOC,and 75% and 76% of total color intensity,respectively.Humic-like substances were suggested to be the major refractory organic and color-causing compounds coke wastewater effluent according to EEM analysis.; 国家杰出青年科学基金项目(50725827) |
| 语种 | 中文 ; 中文 |
| 内容类型 | 期刊论文 |
| 源URL | [http://hdl.handle.net/123456789/64772]  |
| 专题 | 清华大学 |
| 推荐引用方式 GB/T 7714 | 赵文涛,黄霞,李笃中,等. 无排泥条件下的膜-生物反应器系统处理焦化废水可行性研究[J],2010, 2010. |
| APA | 赵文涛.,黄霞.,李笃中.,何苗.,袁媛.,...&YUAN Yuan.(2010).无排泥条件下的膜-生物反应器系统处理焦化废水可行性研究.. |
| MLA | 赵文涛,et al."无排泥条件下的膜-生物反应器系统处理焦化废水可行性研究".(2010). |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论