Analytical method for preliminary sampling of site environment

Abstract

The invention relates to the technical field of environment engineering, and especially relates to an analytical method for preliminary sampling of site environment. The soil gas collected in the field is used to carry out on-site monitoring through soil gas sampling apertures with on-site arrangement, a pollution evaluation index value PI is obtained by a portable photoionization detector (PID),and the organic pollution level of the site can be classified. The organically contaminated soil can be quickly determined at different sites and temperatures, which is suitable for sites contaminatedby volatile organic compounds; in addition, the on-line monitoring of the river mud surge sediment treatment provided by the present invention monitors the pollutant concentration of the contaminatedsediment in a discharge pipeline obtained by the real-time monitoring of the river lake, and whether the pollutant concentration reaches a preset concentration value or not can be determined, on-linereal-time monitoring and identification control of contaminated sediments can be realized, and intelligent judgment and automated efficient treatment of contaminated sediment digging can be realized.

Description

technical field [0001] The invention relates to the technical field of environmental engineering, in particular to an analysis method for preliminary sampling of site environment. Background technique [0002] At present, cities such as Beijing, Shanghai, Chongqing, and Dalian have carried out large-scale urban transformation, and a large number of polluting enterprises have gradually withdrawn from the urban centers, leaving behind a large amount of heavily polluted land that is indeed a precious resource. Among them, sites polluted by heavy metals account for a certain proportion. Corresponding pollution assessments should be carried out before the development and utilization of these sites, and corresponding restoration plans should be formulated accordingly. [0003] Unlike agricultural and other non-residential heavy metal-contaminated soils, most of the heavy metal-contaminated sites left over from the urbanization process will be converted into residential or commerci...

AI Technical Summary

Problems solved by technology

Therefore, for such heavy metal-polluted sites, the evaluation method of comparing the detected values ​​of heavy metals with the existing soil environmental quality standards to judge whether the site is polluted and whether the pollution will cause unacceptable harm to the health of future site users is obviously not applicable.