表面活性剂Tween 80对植物修复土壤芘污染的影响
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摘要
为了评估表面活性剂对植物修复持久性有机污染物(POPs)的强化作用,研究了Tween 80对高羊茅修复土壤芘污染的影响效应,探讨了Tween 80对植物修复的强化机理.结果表明,实验浓度(20.24~321.42 mg/kg)范围内,Tween 80的存在促进了土壤中芘的去除,在70 d表面活性剂强化植物修复(SEPR)实验间,种植高羊茅的土壤中芘的去除率为66.52%(53.99%~80.18%),无植物土壤中芘的去除率为14.32%(11.28%~20.23%);添加4%Tween 80时,种植植物的土壤中的芘去除率为75.73%(60.96%~86.39%),无植物土壤中仅为18.43%(14.24%~25.79%).所有的芘去除途径中,植物—微生物相互作用的贡献最为显著,无论有(45.67%)、无(51.56%)Tween 80存在,都是污染物芘去除的主要手段.可见,表面活性剂Tween 80的存在强化了高羊茅对芘污染土壤的修复效果,SEPR技术是改善植物修复POPs修复效果的有效途径.
In order to evaluate the reinforcement effects of surfactants on phytoremediation with persistent organic pollutants( POPs),the paper studies the efficacy of Tween 80 on the soil photoremediation with Festucaarundinacea and discusses the strengthening mechanisms of Tween 80 on the soil photoremediation. Results show that the presence of Tween 80 enhances the dissipation of pyrene at initial contents ranging from 20. 24 to 321. 42 mg/kg. During the 70 d SEPR-experiments,about 66. 52%( 53. 99% ~ 80. 18%) of pyrene is removed from soil with Festucaarundinacea,and only 14. 32%( 11. 28% ~ 20. 23%) degradation of pyrene occurs in soil without Festucaarundinacea. With the presence of 4% Tween 80,the dissipation ratios of pyrene in soil with Festucaarundinacea,increase up to 75. 73%( 60. 96% ~ 86. 39%) while the dissipation ratios of pyrene in soil without Festucaarundinacea are as low as 18. 43%( 14. 24% ~ 25. 79%). Among all possible methods,plant-microbial interactions plays the most important role in the dissipation of pyrene,either with the presence( 45. 67%) or the absence( 51. 56%) of Tween 80,which are all the primary means for removing contaminants pyrene. It's clear to see that the existence of surfactant Tween 80 reinforces the remediation effects of Festucaarundinaceaon soil polluted by pyrene and SEPR technology could serve as the most effective way to improve the remediation effects of Phytoremediation with persistent organic pollutants( POPs).
In order to evaluate the reinforcement effects of surfactants on phytoremediation with persistent organic pollutants( POPs),the paper studies the efficacy of Tween 80 on the soil photoremediation with Festucaarundinacea and discusses the strengthening mechanisms of Tween 80 on the soil photoremediation. Results show that the presence of Tween 80 enhances the dissipation of pyrene at initial contents ranging from 20. 24 to 321. 42 mg/kg. During the 70 d SEPR-experiments,about 66. 52%( 53. 99% ~ 80. 18%) of pyrene is removed from soil with Festucaarundinacea,and only 14. 32%( 11. 28% ~ 20. 23%) degradation of pyrene occurs in soil without Festucaarundinacea. With the presence of 4% Tween 80,the dissipation ratios of pyrene in soil with Festucaarundinacea,increase up to 75. 73%( 60. 96% ~ 86. 39%) while the dissipation ratios of pyrene in soil without Festucaarundinacea are as low as 18. 43%( 14. 24% ~ 25. 79%). Among all possible methods,plant-microbial interactions plays the most important role in the dissipation of pyrene,either with the presence( 45. 67%) or the absence( 51. 56%) of Tween 80,which are all the primary means for removing contaminants pyrene. It's clear to see that the existence of surfactant Tween 80 reinforces the remediation effects of Festucaarundinaceaon soil polluted by pyrene and SEPR technology could serve as the most effective way to improve the remediation effects of Phytoremediation with persistent organic pollutants( POPs).
引文
[1]Khan S,Afzal M,Iqbal S,et al.Plant-bacteria partnerships for the remediation of hydrocarbon contaminated soils[J].Chemosphere,2013,90(4):1317-1332.
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[5]潘声旺,袁馨,刘灿,等.苯并[α]芘对不同修复潜力羊茅属植物的根系分泌物中几种低分子量有机物的影响[J].植物生态学报,2016,40(6):604-614.
[6]潘声旺,刘灿,黄方玉.根系分泌物对土壤中有机氯农药降解的强化效应及其作用机制[J].成都大学学报(自然科学版),2016,35(2):196-200.
[7]Wei S Q,Pan S W.Phytoremediation for soils contaminated by phenanthrene and pyrene with multiple plant species[J].J Soils Sed,2012,10(5):886-894.
[8]Pan S W,He M P,Lei Z H,et al.Influence of inoculating earthworms on removal of pyrene in soils growing Festuca arundinacea[J].Environ Toxicol Chem,2016,98(5-6):601-610.
[9]Huang W,Weber W J.A distributed reactivity model for sorption by soils and sediments.10:relationships between sorption,hysteresis and the chemical characteristics of organic domains[J].Environ Sci Technol,1997,31(9):2562-2569.
[10]Wang X,Sato T,Xing B.Sorption and displacement of pyrene in soils and sediments[J].Environ Sci Technol,2005,39(22):8712-8718.
[11]Sumia K,Muhammad A,Samina I,et al.Plant-bacteria partnerships for the remediation of hydrocarbon contaminated soils[J].Chemosphere,2013,90(4):1317-1332.
[12]Gao Y Z,Ling W T,Zhu L Z,et al.Surfactant-enhanced phytoremediation of soils contaminated with hydrophobic organic contaminants:potential and assessment[J].Pedosphere,2013,17(4):409-418.
[13]白静,赵勇胜,陈子方,等.利用Tween 80溶液冲洗修复萘污染地下水模拟实验[J].吉林大学学报(地球科学版),2013,43(2):552-557.
[14]Tejeda-Agredano M C,Gallego S,Vila J,et al.Influence of the sunflower rhizosphere on the biodegradation of PAHs in soil[J].Soil Biol Biochem,2013,57(3):2065-2076.
[2]Abhilash P C,Powell J R,Singh H B,et al.Plant-microbe interactions:novel applications for exploitation in multipurpose remediation technologies[J].Trends Biotechnol,2012,30(8):416-420.
[3]Chen B L,Johnson E J,Chefetz B,et al.Sorption of polar and nonpolar aromatic organic contaminants by plant cuticular materials:role of polarity and accessibility[J].Environ Sci Technol,2005,39(16):6138-6146.
[4]Lee D H,Robert D C,Kim D J,et al.Effect of soil texture on surfactant-based remediation of hydrophobic organic-contaminated soil[J].Environ Int,2002,27(8):681-688.
[5]潘声旺,袁馨,刘灿,等.苯并[α]芘对不同修复潜力羊茅属植物的根系分泌物中几种低分子量有机物的影响[J].植物生态学报,2016,40(6):604-614.
[6]潘声旺,刘灿,黄方玉.根系分泌物对土壤中有机氯农药降解的强化效应及其作用机制[J].成都大学学报(自然科学版),2016,35(2):196-200.
[7]Wei S Q,Pan S W.Phytoremediation for soils contaminated by phenanthrene and pyrene with multiple plant species[J].J Soils Sed,2012,10(5):886-894.
[8]Pan S W,He M P,Lei Z H,et al.Influence of inoculating earthworms on removal of pyrene in soils growing Festuca arundinacea[J].Environ Toxicol Chem,2016,98(5-6):601-610.
[9]Huang W,Weber W J.A distributed reactivity model for sorption by soils and sediments.10:relationships between sorption,hysteresis and the chemical characteristics of organic domains[J].Environ Sci Technol,1997,31(9):2562-2569.
[10]Wang X,Sato T,Xing B.Sorption and displacement of pyrene in soils and sediments[J].Environ Sci Technol,2005,39(22):8712-8718.
[11]Sumia K,Muhammad A,Samina I,et al.Plant-bacteria partnerships for the remediation of hydrocarbon contaminated soils[J].Chemosphere,2013,90(4):1317-1332.
[12]Gao Y Z,Ling W T,Zhu L Z,et al.Surfactant-enhanced phytoremediation of soils contaminated with hydrophobic organic contaminants:potential and assessment[J].Pedosphere,2013,17(4):409-418.
[13]白静,赵勇胜,陈子方,等.利用Tween 80溶液冲洗修复萘污染地下水模拟实验[J].吉林大学学报(地球科学版),2013,43(2):552-557.
[14]Tejeda-Agredano M C,Gallego S,Vila J,et al.Influence of the sunflower rhizosphere on the biodegradation of PAHs in soil[J].Soil Biol Biochem,2013,57(3):2065-2076.