全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...

用POM-SPE方法研究秸秆焚烧对农田土壤吸附多氯联苯的影响

Keywords: POM-SPE,灰分,多氯联苯,吸附

Full-Text   Cite this paper   Add to My Lib

Abstract:

国内首次应用聚甲醛固相萃取(POM-SPE)方法研究了在农田土壤中秸秆焚烧对土壤吸附多氯联苯的影响。结果表明,与传统方法相比,该方法避免了多氯联苯较低的水溶性给直接测定土-水分配系数所带来的困难,是研究疏水有机物在土-水体系中吸附行为的较理想方法。研究还表明,土壤对多氯联苯的吸附能力随着土壤中灰分的增加而增加,各种同系物的土-水分配系数受灰分的影响程度不同,氯化程度低的同系物分配系数受影响程度大于氯化程度高的同系物,并且在灰分含量0.1%以下,分配系数对数值的变化率与土壤中灰分含量之间表现出较好的线性关系(r2>0.85)。稻草和麦草两种灰分对多氯联苯在土-水中的吸附影响未表现出明显的差异(P>0.05)。

References

[1]  毕新慧,储少岗,徐晓白.多氯联苯在土壤中的吸附行为[J].中国环境科学,2001,21(3):284-288.
[2]  Jonker M T O,Koelmans A A.Polyoxymenthylene solid phase extraction as a partitioning method for hydrophobic organic chemicals in sediment and soot[J].Environ Sci Technol,2001,35:3742-3748.
[3]  Jonker M T O,Sinke A J C,Brils J M,et al.Sorption of polycyclic aromatic hydrocarbons to oil-contaminated sediment:unresolved complex[J].Environ Sci Technol,2003,37:5197-5203.
[4]  Jonker M T O,Koelmans A A.Sorption of polycyclic aromatic hydrocarbons and polychlorinated biphenyls to soot and soot-like materials in the aqueous environment:mechanistic considerations[J].Environ Sci Technol,2002,36:3725-3734.
[5]  Yang Y N,Sheng G Y.Enhanced pesticide sorption by soils containing particulate matter from crop residue burns[J].Environ Sci Technol,2003,37:3635-3639.
[6]  Hawker D W,Connell D W.Octanol-water partition coefficients of polychlorinated biphenyl congeners[J].Environ Sci Technol,1988,22:382-387.
[7]  Cornelissen G,Van Noort P C M,Parsons J R,et al.The temperature dependence of slow adsorption and desorption kinetics of organic compounds in sediments[J].Environ Sci Technol,1997,31:454-460.
[8]  Accardi-Dey A,Gsehend P M.Reinterpreting Literature Sorption Data Considering both Absorption into Organic Carbon and Adsorption onto Black Carbon[J].Environ Sci Technol,2003,37:99-106.
[9]  Hayworth J S,Burris D R.Nonionic surfactant-enhancedsolubilization and recovery of organic contaminants from withincationic surfactantenhanced sorbent zones.1.Experiments[J].Environ Sci Technol,1997,31:1277-1283.
[10]  Breivik K,Sweetman A,Pacyna J M,et al.Towards a global historical emission inventory for selected PCB congeners-a mass balance approach:1.Global production and consumption[J].Environ Sci Technol,2002,290:181-198.
[11]  Meijer S N,Ockenden W A,Sweetman A,et al.Global distribution and budget of PCBs and HCB in background surface soils:implications for sources and environmental process[J].Environ Sci Technol,2003,37:667-672.
[12]  Chu S G,Cai M L,Xu X B.Soil-plant transfer of polychlorinated biphenyls in paddy fields[J].Environ Sci Technol,1999,234:119-126.
[13]  Cornelissen G,Rigterink H,Ferdinandy M A,et al.Rapidly desorbing fractions of PAHs in contaminated sediments as a predictor of the extent of bioremediation[J].Environ Sci Technol,1998,32:966-970.
[14]  Bundt M,Krauss M,Blaser P,et al.Forest fertilization with wood ash:effect on the distribution and storage of polycyclic aromatic hydrocarbons (PAHs) and polychlorinated biphenyls (PCBs)[J].J Environ Qual,2001,30:1296-1304.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133