a Department of Chemical Engineering , Shahid Bahonar University of Kerman , Kerman , Iran.
b Chemical and Petroleum Engineering Department , School of Engineering, Shiraz University , Shiraz , Iran.
Int J Phytoremediation. 2018 Jan 28;20(2):98-103. doi: 10.1080/15226514.2017.1337069.
This study was conducted to evaluate and compare the effectiveness of two organic amendments [poultry manure (PM) and poultry manure biochar (PMB)] for the degradation of petroleum hydrocarbons in contaminated soils by barley plant at three levels of total petroleum hydrocarbons (TPHs) during 5 months under greenhouse conditions. TPHs removal efficiency and microbial respiration were shown to be higher at soil-cultivated plant than at uncultivated soil and in lowest level of contamination rather than other levels of contamination and at organic amendment treatment than unamended soil. Soil microbial respiration and TPHs degradation in the rhizosphere of barley increased by 15.64 and 12.74% for PM-amended treatment and 28.07 and 26.83% for PMB-amended treatment, respectively, in the 4% TPHs level compared with unamended treatment. Comparison of two amendments showed that in PMB treatment soil, highest dry weight, microbial respiration, and TPHs degradation potential were observed.
本研究旨在评估和比较两种有机改良剂[家禽粪便（PM）和家禽粪便生物炭（PMB）]在温室条件下，5 个月内通过大麦植物对三种总石油烃（TPH）污染土壤中石油烃降解的效果。结果表明，与未耕作土壤相比，在土壤栽培植物中，TPH 的去除效率和微生物呼吸作用更高；与其他污染水平相比，在最低污染水平下，TPH 的去除效率和微生物呼吸作用更高；与未添加有机改良剂的土壤相比，添加有机改良剂的土壤中，TPH 的去除效率和微生物呼吸作用更高。与未添加处理相比，在 4%TPH 水平下，添加 PM 处理的根际土壤微生物呼吸和 TPH 降解分别增加了 15.64%和 12.74%，添加 PMB 处理分别增加了 28.07%和 26.83%。两种改良剂的比较表明，在 PMB 处理的土壤中，观察到最高的干重、微生物呼吸和 TPH 降解潜力。
