CAJ | 학술논문

在实验室条件下,研究了添加膨松剂和翻耕对石油污染土壤生物修复的影响.结果表明添加膨松剂并翻耕土样修复48 d后,76%的TPH被降解,比不加膨松剂的处理高15%,加入膨松剂后石油烃降解速率提高了2.34倍.添加的膨松剂会迅速吸收水分,提高土壤中的含水率,改善土壤环境,提高修复效率.GC-MS分析结果表明添加膨松剂修复64 d后,峰形基本消失,出峰数由不加膨松剂的32个减少为14个,土壤中的异构烷烃、烯烃、胡萝卜烷和烷基萘的去除率接近100%,应用联合翻耕技术后,出峰数减少为10个,土壤中的异构烷烃、烯烃、胡萝卜烷、烷基萘、藿烷和甾烷完全被去除.TPH的降解率随着翻耕频率的减少而降低,最佳的翻耕频率为每天翻耕一次.
재실험실조건하,연구료첨가팽송제화번경대석유오염토양생물수복적영향.결과표명첨가팽송제병번경토양수복48 d후,76%적TPH피강해,비불가팽송제적처리고15%,가입팽송제후석유경강해속솔제고료2.34배.첨가적팽송제회신속흡수수분,제고토양중적함수솔,개선토양배경,제고수복효솔.GC-MS분석결과표명첨가팽송제수복64 d후,봉형기본소실,출봉수유불가팽송제적32개감소위14개,토양중적이구완경、희경、호라복완화완기내적거제솔접근100%,응용연합번경기술후,출봉수감소위10개,토양중적이구완경、희경、호라복완、완기내、곽완화치완완전피거제.TPH적강해솔수착번경빈솔적감소이강저,최가적번경빈솔위매천번경일차.
An experiental inestigation of bulking agent and tillage on bioremediation of petroleum contaminated soil was studied.The results showed that the degradation efficiency of TPH was 76% in 48 days after bulking agents were added and tillage, which was higher 15% than that of non-addition bulking agent control and was 2.34 fold speeds of the control. Adding bulking agent increased water content of soil as bulking agent absorbed water and improved the degradation of TPH. The results of GC-MS indicated the peaks amount of GC profile decreased from 32 to 14 in 64 days after bioremediation of bulking agent addition. This result indicated that branched alkanes, alkenes, carotanes and alkylnaphthalenes were thoroughly degraded. The peaks amount of GC profile reduced to 10 and residual hopanes and steranes were also thoroughly degraded after combined treatment with bulking agent and tillage. The degradation efficiency of TPH dropped as tillage times was decreased,and the opitium tillage frequency was once every day with a shovel.