Research on Pollution Characteristics and Remediation Techniques of Organochlorine Pesticides in Apple Orchard Soil
Due to the non-standard operation of fruit farmers when spraying pesticides,it is easy to cause the problem of excessive residual organic chlorine pesticides.Therefore,the pollution characteristics and remediation techniques of organochlorine pesticides in ap-ple orchard soil are proposed.The study collected soil samples and determined the type and concentration of organochlorine pesticides using gas chromatography-triple quadrupole mass spectrometry.The comprehensive pollution index is calculated based on the pollutant concentration.The composition and spatiotemporal distribution characteristics of soil organochlorine pesticides is calculated.The paper adopted a surfactant enhanced electric sodium persulfate remediation method to address organochlorine pesticide pollution and analyze the remediation effect.The test results show that the concentration of various organic chlorine pesticides in the polluted soil remediated by this technology is greatly reduced,and the removal rate has reached over 90%,which proves the remediation effect of this method.
apple orchard soilorganochlorine pesticidespollution characteristicsrepair techniques