酚类化合物在焦化废水处理过程中的降解与转移
The degradation and transfer of phenolic compounds during the treatment processes of coking wastewater
查看参考文献24篇
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文摘
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研究了4种烷基酚、7种氯酚和2种硝基酚物质在广东韶关钢铁集团焦化废水处理站的浓度演变与转移.针对设计处理量为2000 m.~3d~(-1),生物处理采用A/O1/O2工艺,已经稳定运行5年的实际废水处理工程,同一时间分别采集水样、气样与综合排泥样若干批次,采用GC/MS方法分析酚类物质的浓度.研究结果表明,焦化废水中酚类物质在原水与各个处理工段中均存在成分与浓度的特征分布,烷基酚类物质浓度高但容易通过生物降解去除,氯酚和硝基酚的去除率略低,经生物处理的出水酚类物质浓度均低于5μg.L~(-1),达到了有关排放标准的要求;所有酚类物质在废水处理过程中存在气相转移的现象,转移污染物浓度分布差异显著,取决于废水本底浓度与该物质的化学性质;污泥样品能够高倍数富集氯酚类物质,在处理与处置工艺的选择方面需要防止扩散.酚类化合物在焦化废水处理过程中的浓度削减主要是生物阶段,气相转移与固相转移可能构成环境风险,未来的水处理工程需要考虑二次污染的消除问题. |
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其他语种文摘
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Phenolic compounds(PCs) are the major pollutants in coking wastewater and it is meaningful to understand in treatment process.In order to evaluate the efficiency of coking wastewater treatment plant and the environmental risk,the variations of alkylphenols,chlorophenols and nitrophenols were studied.Samples of five kinds wastewater,four kinds gases and one kinds dewatered sludge were collected from the plant,which had been in stable operation for five years.The A/O1/O2 sytem was applied in the biological stage with the processing capacity of 2000 m~3 · d~(-1).The analysis were extracted by solid phase extraction(aqueous samples) or Soxhlet extraction(gas and sludge samples).Qualitative and quantitative analyses were performed by gas chromatography-mass spectrometry(GC/MS).These results indicated that the compositions and concentrations of PCs in coking wastewater and treated effluents have specific characters.Alkylphenols were the dominated compounds in wastewater,but they can be biodegraded easily.Chlorophenols and nitrophenols′ concentrations were in the μg · L~(-1) level and their removal rates were low.The concentrations of PCs in the final effluent were lower than 5 μg · L~(-1),below the discharge standard level.The selected PCs were also determined in the gas samples.Due to the influence by the concentrations of PCs in wastewater and their physical-chemical properties,the detected concentrations in gas were greatly difference.The distribution of PCs in gas samples from Songshan coking plant of Shaoguan showed an explicit health-risk.Chlorophenols were enriched in the sludge samples,which indicated that dewatered sludge from Songshan coking plant of Shaoguan should be treated carefully.PCs were mainly removed in the biological stage,but some of these compounds could transfer into the air and sludge.Therefore,the control of secondary pollution should be considered in the future. |
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来源
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环境化学
,2012,31(10):1487-1493 【核心库】
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关键词
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环境工程
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焦化废水
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酚类物质
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二次污染
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生物处理
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浓度削减
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地址
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1.
广东省韶关钢铁集团有限公司焦化厂, 韶关, 512123
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华南理工大学生物科学与工程学院, 广州, 510006
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中国科学院广州地球化学研究所珠江三角洲环境污染与控制研究中心, 广州, 510640
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华南理工大学环境科学与工程学院, 工业聚集区污染控制与生态修复教育部重点实验室;;污染控制与生态修复广东省普通高等学校重点实验室, 广州, 510006
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语种
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中文 |
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ISSN
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0254-6108 |
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学科
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行业污染、废物处理与综合利用 |
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基金
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广东省科技计划项目
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国家863计划
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国家“十一五”科技支撑计划重点项目
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国家自然科学基金重点项目
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文献收藏号
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CSCD:4654432
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参考文献 共
24
共2页
|
|
1.
任源. 焦化废水水质组成及其环境学与生物学特性分析.
环境科学学报,2007,27(7):1094-1100
|
CSCD被引
88
次
|
|
|
|
|
2.
Sarfaraz S. Anoxic treatment of phenolic wastewater in sequencing batch reactor.
Water Research,2004,38(4):965-971
|
CSCD被引
9
次
|
|
|
|
|
3.
Ramos A F. Biological nitrogen and phenol removal from saline industrial wastewater by submerged fixedfilm reactor.
Journal of Hazardous Materials,2007,142(1/2):175-183
|
CSCD被引
13
次
|
|
|
|
|
4.
韦朝海. 生物三相流化床A／O~2组合工艺在焦化废水处理中的工程应用.
环境科学学报,2007,27(7):1107-1112
|
CSCD被引
27
次
|
|
|
|
|
5.
张伟. A/O/O生物流化床处理焦化废水中酚类组成及降解特性分析.
环境工程学报,2010,4(2):253-238
|
CSCD被引
23
次
|
|
|
|
|
6.
Gavalas G R.
Coal Pyrolysis,1982:1139
|
CSCD被引
1
次
|
|
|
|
|
7.
Marianna C. Determination of selected organic pollutants in ground water-A method of analysis.
Fresenius Environmental Bulletin,2002,11(2):91-97
|
CSCD被引
1
次
|
|
|
|
|
8.
Keith C L. Anaerobic decomposition of benzoic-acid during methane fermentation. 4. De-Aromatization of Ring and volatile fatty-acids formed on ring rupture.
Archives of Microbiology,1978,118(2):173-176
|
CSCD被引
4
次
|
|
|
|
|
9.
Fina L R. Anaerobic decomposition of benzoic-acid during methane fermentation. 3. fate of carbon four and identification of propanoic acid.
Archives of Microbiology,1978,118(2):169-172
|
CSCD被引
2
次
|
|
|
|
|
10.
Heider J. Microbial anaerobic aromatic metabolism.
Anaerobe,1997,3(1):1-22
|
CSCD被引
4
次
|
|
|
|
|
11.
Madsen T. Anaerobic transformation and toxicity of trichlorophenols in a stable enrichment culture.
Applied and Environmental Microbiology,1992,58(2):557-561
|
CSCD被引
4
次
|
|
|
|
|
12.
Rudolphi A. Anaerobic degradation of cresols by denitrifying bacteria.
Archives of Microbiology,1991,155(3):238-248
|
CSCD被引
3
次
|
|
|
|
|
13.
Hopper D J. P-cresol methylhydroxylase from a denitrifying bacterium involved in anaerobic degradation of P-Cresol.
Journal of Bacteriology,1991,173(3):1298-1301
|
CSCD被引
2
次
|
|
|
|
|
14.
Melo J S. Effect of oxygen transfer limitations in phenol biodegradation.
Process Biochemistry,2005,40(2):625-628
|
CSCD被引
6
次
|
|
|
|
|
15.
Pham T T. PCBs and PAHs in the Montreal Urban Community (Quebec, Canada) wastewater treatment plant and in the effluent plume in the St Lawrence River.
Water Research,1997,31(8):1887-1896
|
CSCD被引
8
次
|
|
|
|
|
16.
Byrns G. The fate of xenobiotic organic compounds in wastewater treatment plants.
Water Research,2001,35(10):2523-2533
|
CSCD被引
11
次
|
|
|
|
|
17.
Hamoda M F. Air pollutants emissions from waste treatment and disposal facilities.
Journal of Environmental Science and Health, A,2006,41:77-85
|
CSCD被引
3
次
|
|
|
|
|
18.
Cheng W H. Volatile organic compound emissions from wastewater treatment plants in Taiwan: Legal regulations and costs of control.
Journal of Environmental Management,2008,88(4):1485-1494
|
CSCD被引
5
次
|
|
|
|
|
19.
Webber M D. Organic contaminants in Canadian municipal sludge.
Waste Manage Res,1989(7):63-82
|
CSCD被引
1
次
|
|
|
|
|
20.
Jacobs L W. Effects of trace organics in sewage sludges on soil-plant systems and assessing their risk to humans.
Land Application of sludge Food Chain Implication,1987:101-143
|
CSCD被引
1
次
|
|
|
|
|
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