Rate of loss of insecticides during soil solarization and soil biosolarization

JOURNAL OF HAZARDOUS MATERIALS

卷:185

Article

Fenoll, Jose¹  Ruiz, Encarnacion¹  Hellin, Pilar¹  Martinez, Carmen M.¹  Flores, Pilar¹ 

[1] IMIDA, Inst Murciano Invest & Desarrollo Agr & Alimentar, Murcia 30150, Spain

关键词: Insecticide;    Soil decontamination;    Solar heating;    Mulching;    Biofumigation;   

DOI  :  10.1016/j.jhazmat.2010.09.065

来源: Elsevier

【 摘 要 】

This paper reports the use of solarization and biosolarization to decontaminate a soil polluted with six insecticides (buprofezin, pirimicarb, pirimiphos methyl, pyridaben, pyriproxyfen and tebufenpyrad). In the experiment, 17-L pots filled with clay-loam soil were placed in a greenhouse during the summer season and then contaminated with the insecticides of interest. Treatments consisted of different solarization and biosolarization treatments, including a control without disinfection. For both solarization and biosolarization treatments, low-density polyethylene film was used as cover: the biosolarization treatment involving application of a mixture of sheep and chicken manures at a rate of 400 g pot(-1). Five pots per treatment were sampled periodically up to 90 d after the beginning of each treatment. The results showed that both solarization and biosolarization enhanced the degradation rates of most of the insecticides tested compared with the control, probably as a result of the increased soil temperature. Pirimicarb, pirimiphos methyl, tebufenpyrad, pyriproxyfen and pyridaben were degraded to a greater extent in the biosolarization than in the solarization treatment. The results confirm that both solarization and biosolarization can be considered as a remediation tool for soils polluted by these insecticides. (C) 2010 Elsevier B.V. All rights reserved.

【 授权许可】

Free