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Iranian Journal of Health Sciences، جلد ۹، شماره ۲، صفحات ۲۸-۳۹
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عنوان انگلیسی Effect of Nano-Particle Compounds and P. Indica on Bio-Degradation of Petroleum Compounds in the Soil Contaminated with Cd under Cultivation of Triticale Plant
چکیده انگلیسی مقاله Background and Purpose: Phytoremediation efficiency of heavy metals is an important factor in environmental studies. This study was conducted to investigate the effect of multi-walled carbon nanotubes (MWCNTs), zeolite, and P.indica on bio-degradation of mazut in a soil treated with Cd and mazut. Materials and Methods: Treatments consisted of applying zeolite (0, 1 and 2% (W/W)), MWCNTs (0, 1 and 2 % (W/W)) in the presence and absence of P.Indica in the Cd (0 , 5 and 10 mg/kg soil) polluted soil that was simultaneously polluted with mazut (0 and 6 % (W/W)). After 70 days, plants were harvested, and plant and soil Cd were measured using AAS. In addition, the degradation percentage of mazut in soil was determined. Results: The addition of 2 % (W/W) MWCNTs and zeolite to the soil polluted with 6 % (W/W) mazut significantly increased the bio-degradation percentage of mazut in the soil by 11.3%. For soil and plant Cd concentration, it was decreased by 10.6 and 12.8%, respectively. In addition, plant inoculation with P.indica significantly increased the biodegradation of mazut in the Cd polluted soil (10 mg Cd/kg soil) by 14.3%. Increasing soil pollution to mazut from 0 to 6 % (W/W) significantly increased the soil microbial respiration by 14.4%. Conclusion: Based on the results, the addition of MWCNs and zeolite in the soil and plant inoculation with P.indica significantly increased the mazut bio-degradation in the soil. However, the amount and type of pollutant had a significant effect on phytoremediation efficiency.    
کلیدواژه‌های انگلیسی مقاله Pollution, Phytoremediation, MWCNTs, Zeolite, Microbial Respiration
نویسندگان مقاله امیر حسین بقائی | Amir Hossein Baghaie
Department of Soil Science, Arak Branch, Islamic Azad University, Arak, Iran
دانشگاه آزاد اسلامی اراک

نشانی اینترنتی http://jhs.mazums.ac.ir/browse.php?a_code=A-10-676-8&slc_lang=en&sid=1
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