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Wang, C.P., Li, J., Jiang, Y., Zhang, Z.Y.. (1393). Enhanced Bioremediation of Field Agricultural Soils Contaminated with PAHs and OCPs. , 8(4), 1271-1278. doi: 10.22059/ijer.2014.819
C.P. Wang; J. Li; Y. Jiang; Z.Y. Zhang. "Enhanced Bioremediation of Field Agricultural Soils Contaminated with PAHs and OCPs". , 8, 4, 1393, 1271-1278. doi: 10.22059/ijer.2014.819
Wang, C.P., Li, J., Jiang, Y., Zhang, Z.Y.. (1393). 'Enhanced Bioremediation of Field Agricultural Soils Contaminated with PAHs and OCPs', , 8(4), pp. 1271-1278. doi: 10.22059/ijer.2014.819
Wang, C.P., Li, J., Jiang, Y., Zhang, Z.Y.. Enhanced Bioremediation of Field Agricultural Soils Contaminated with PAHs and OCPs. , 1393; 8(4): 1271-1278. doi: 10.22059/ijer.2014.819

Enhanced Bioremediation of Field Agricultural Soils Contaminated with PAHs and OCPs

International Journal of Environmental Research
مقاله 42، دوره 8، شماره 4، دی 2014، صفحه 1271-1278    اصل مقاله (334.25 K)
نوع مقاله: Original Research Paper
شناسه دیجیتال (DOI): 10.22059/ijer.2014.819
نویسندگان
C.P. Wang* 1؛ J. Li1؛ Y. Jiang2؛ Z.Y. Zhang1
1MOE Key Laboratory of Pollution Process and Environmental Criteria, Tianjin Key Laboratory of Environmental Remediation and Pollution Control, College of Environment Science and Engineering, Nankai University, Tianjin 300071, P.R. China
2Zhonghuan Metallurgical Corporation, Beijing 10011, P.R. China
چکیده
Effect of different concentrations of ammonium chloride (NCL) and ammonium nitrate (NN)
and surfactants such as Tween-80, HPCD and rhamnolipids on the bioremediation of PAHs and OCPs was
investigated. The results showed that the best optimum concentration of NCL and NN was 50 g·kg-1, and the
PAHs degradation rate during 60 days of remediation was enhanced to 64.6% and 62.8% for NCL and NN,
respectively, which was approximately 45, 17, 10% higher than those in the control group, soil only added
microorganism, soil added microorganism and tourmaline. OCP removal rates were 51.7% and 50.4 % for NCL
and NN, respectively, which was 34% higher than the control group, 14% higher than the soil only added
microorganism, 9% higher than the soil added microorganism and tourmaline. The best dose of Tween-80,
HPCD and rhamnolipids was 2, 0.5 and 0.2 g·kg-1. When they were applied, the PAHs degradation rate during
60 days of remediation was enhanced to 69, 70.4 and 71.5%, respectively, which was approximately 52, 24
and 17% than those in the control group, soil only added microorganism, soil added microorganism and
tourmaline. Similarly, OCP removal rate was 42, 26 and 16% higher than those in the control group,
microorganism -added soil alone, soil added microorganism and tourmaline. Additionally, nutrients and surfactants
can promote the generation of soil hydrogen peroxidase and invertase enzyme. Hence, the present study
provides a promising combination remediation technology for the remediation of field soils contaminated by
PAHs and OCPs.
کلیدواژه‌ها
nutrients؛ Surfactants؛ Tourmaline؛ Soil؛ Remediation
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