芬顿法修复石油污染土壤使用条件优化的研究
|
摘要
为探讨芬顿氧化法在修复关中地区塿土石油污染中的最佳条件,通过人为配制石油污染土壤,设置不同的双氧水与催化剂摩尔投加比例、双氧水与催化剂投加量、土水比以及反应体系pH值等指标,待达到反应时间后,通过重量法测得剩余石油烃含量,得出土壤中石油烃的降解率。结果表明:在10 g污染土壤中,双氧水与催化剂摩尔投加比例为20∶1,双氧水(30%)投加量为1 mL,催化剂投加量为0.131 6 g,土水比为1∶4,最佳pH为3时,芬顿试剂对土壤中的石油烃催化效率最高,可达到63.27%。同时,在中性和碱性条件下,石油烃的催化效率都高于55%。
Indicators such as amounts of hydrogen peroxide and catalyst to the artificially prepared petroleum contaminated soil, the molar ratio of hydrogen peroxide to catalyst, the ratio of water to soil, and the pH were altered in order to explore the best conditions for Fenton reagent to degrade oil-contaminated Lou soil in Guanzhong area. After the reaction time was reached, the residual petroleum hydrocarbon content was determined by gravimetric method, and the degradation rate of petroleum hydrocarbons in the soil was obtained. The results showed that in 10 g contaminated soil, the molar ratio of hydrogen peroxide to catalyst was 20∶1, the dosage of hydrogen peroxide(30%) was 1 mL, the dosage of catalyst was 0.131 6 g and the ratio of soil to water was 1∶4. When the pH value was 3, Fenton reagent had the highest catalytic efficiency for petroleum hydrocarbons in soil, which could reach 63.27%. And under both neutral and alkaline conditions, the catalytic efficiency of petroleum hydrocarbons was higher than 55%.
Indicators such as amounts of hydrogen peroxide and catalyst to the artificially prepared petroleum contaminated soil, the molar ratio of hydrogen peroxide to catalyst, the ratio of water to soil, and the pH were altered in order to explore the best conditions for Fenton reagent to degrade oil-contaminated Lou soil in Guanzhong area. After the reaction time was reached, the residual petroleum hydrocarbon content was determined by gravimetric method, and the degradation rate of petroleum hydrocarbons in the soil was obtained. The results showed that in 10 g contaminated soil, the molar ratio of hydrogen peroxide to catalyst was 20∶1, the dosage of hydrogen peroxide(30%) was 1 mL, the dosage of catalyst was 0.131 6 g and the ratio of soil to water was 1∶4. When the pH value was 3, Fenton reagent had the highest catalytic efficiency for petroleum hydrocarbons in soil, which could reach 63.27%. And under both neutral and alkaline conditions, the catalytic efficiency of petroleum hydrocarbons was higher than 55%.
引文
[1] 刘文霞,孟祥远,冯建灿,等.中原油田耕地污染分析[J].农业环境保护,2002,21(1):56-59.
[2] 刘乃瑞,周波,沙宇.土壤柴油污染的检测与修复[M].北京:中国环境科学出版社,2010:3867-3870.
[3] 昆仑.输油管道爆炸的惨痛教训[J].城市与减灾,2010(05):46-47.
[4] Sammarco PW,Kolian S R,Warby R A,et al.Distribution and Concentrations of Petroleum Hydrocarbons associated with the BP/Deepwater Horizon Oil Spill,Gulf of Mexico[J].Marine Pollution Bulletin.2013,73(1):129-143.
[5] Cui J,Du J Z,Yang Z,et al.Characteristics of soil organic pollution in Shenyang suburbs of Liaoning Province,Northeast China[J].Chinese Journal of Ecology,2011,30(11):2472-2477.
[6] Liu Shouqing,Cheng Shi,Feng Lianrong,et al.Effect of alkali cations on heterogeneous photo -Fenton process mediated by Prussian bluecolloids[J].Journal of Hazardous Materials,2010,182(1):665-671.
[7] Bautista P,Mohedano A F,Casas J A,et al.An overview of the application of Fenton oxidation to industrial wastewaters treatment [J].Journal of Chemical Technology & Biotechnology,2008,83(10):1323-1338.
[8] Villa R D,Trovo A G,Nogueira R F P.Diesel Degradation in Soil by Fenton Process[J].Journal of the Brazilian Chemical Society,2010,21(6):1088-1095.
[9] 张秋子,韦云霄,姜永海,等.催化过氧化氢对石油烃污染土壤的氧化能力[J].环境工程技术学报,2017,7(01):65-70.
[10] 秦莉.芬顿氧化去除土壤中多环芳烃的关键技术及其试剂包研制[D].南京:南京农业大学,2015.
[11] Kanel S R,Neppolian B,Choi H,et al.Heterogeneous Catalytic Oxidation of Phenanthrene by Hydrogen Peroxide in Soil Slurry:Kinetics,Mechanism,and Implication [J].Soil & Sediment Contamination An International Journal,2003,12(1):101-117.
[12] Watts R J,Stanton P C,Howsawkeng J,et al.Mineralization of a sorbed polycyclic aromatic hydrocarbon in two soils using catalyzed hydrogen peroxide [J].Water Research,2002,36(17):4283-4292.
[13] 宋刚练,江建斌,祝可成.芬顿氧化法修复上海某工业场地的技术应用[J].地质灾害与环境保护,2017,28(02):106-110.
[14] Alecsandra dos Santos,Graziela da Silva Costa e Patricio Peralta-Zamora.Fenton remiediation of contaminated soils:A critical review[J].Quimica Nova,2017,40(3):327-333.
[15] Baciocchi R,Boni M R,D'Aprile L.Hydrogen peroxide lifetime as an indicator of the efficiency of 3-chlorophenol Fenton's and Fenton-like oxidation in soils[J].J Hazard Mater,2003,96(2-3):305-329.
[16] Vicente F,Rosas J M,Santos A,et al.Improvement soil remediation by using stabilizers and chelating agents in a Fenton-like process[J].Chemical Engineering Journal,2011(172):689-697.
[2] 刘乃瑞,周波,沙宇.土壤柴油污染的检测与修复[M].北京:中国环境科学出版社,2010:3867-3870.
[3] 昆仑.输油管道爆炸的惨痛教训[J].城市与减灾,2010(05):46-47.
[4] Sammarco PW,Kolian S R,Warby R A,et al.Distribution and Concentrations of Petroleum Hydrocarbons associated with the BP/Deepwater Horizon Oil Spill,Gulf of Mexico[J].Marine Pollution Bulletin.2013,73(1):129-143.
[5] Cui J,Du J Z,Yang Z,et al.Characteristics of soil organic pollution in Shenyang suburbs of Liaoning Province,Northeast China[J].Chinese Journal of Ecology,2011,30(11):2472-2477.
[6] Liu Shouqing,Cheng Shi,Feng Lianrong,et al.Effect of alkali cations on heterogeneous photo -Fenton process mediated by Prussian bluecolloids[J].Journal of Hazardous Materials,2010,182(1):665-671.
[7] Bautista P,Mohedano A F,Casas J A,et al.An overview of the application of Fenton oxidation to industrial wastewaters treatment [J].Journal of Chemical Technology & Biotechnology,2008,83(10):1323-1338.
[8] Villa R D,Trovo A G,Nogueira R F P.Diesel Degradation in Soil by Fenton Process[J].Journal of the Brazilian Chemical Society,2010,21(6):1088-1095.
[9] 张秋子,韦云霄,姜永海,等.催化过氧化氢对石油烃污染土壤的氧化能力[J].环境工程技术学报,2017,7(01):65-70.
[10] 秦莉.芬顿氧化去除土壤中多环芳烃的关键技术及其试剂包研制[D].南京:南京农业大学,2015.
[11] Kanel S R,Neppolian B,Choi H,et al.Heterogeneous Catalytic Oxidation of Phenanthrene by Hydrogen Peroxide in Soil Slurry:Kinetics,Mechanism,and Implication [J].Soil & Sediment Contamination An International Journal,2003,12(1):101-117.
[12] Watts R J,Stanton P C,Howsawkeng J,et al.Mineralization of a sorbed polycyclic aromatic hydrocarbon in two soils using catalyzed hydrogen peroxide [J].Water Research,2002,36(17):4283-4292.
[13] 宋刚练,江建斌,祝可成.芬顿氧化法修复上海某工业场地的技术应用[J].地质灾害与环境保护,2017,28(02):106-110.
[14] Alecsandra dos Santos,Graziela da Silva Costa e Patricio Peralta-Zamora.Fenton remiediation of contaminated soils:A critical review[J].Quimica Nova,2017,40(3):327-333.
[15] Baciocchi R,Boni M R,D'Aprile L.Hydrogen peroxide lifetime as an indicator of the efficiency of 3-chlorophenol Fenton's and Fenton-like oxidation in soils[J].J Hazard Mater,2003,96(2-3):305-329.
[16] Vicente F,Rosas J M,Santos A,et al.Improvement soil remediation by using stabilizers and chelating agents in a Fenton-like process[J].Chemical Engineering Journal,2011(172):689-697.