Material balance calculation method based on oil-contaminated soil cleaning treatment process and application of material balance calculation method

Abstract

The invention belongs to the technical field of ex-situ cleaning treatment of petroleum-contaminated soil, and particularly relates to a material balance method based on a cleaning treatment process of oil-contaminated soil and application of the material balance method. The method comprises the following steps: detecting the occurrence content of the total amount of sump oil and the content of group parts in various materials in a petroleum-contaminated soil cleaning system to obtain the distribution state of the content of the sump oil and the content of the group parts of the sump oil under different cleaning cycle conditions aiming at soil with different particle size grades; a material balance calculation method and a material balance relation of the sump oil content in the multi-stage multi-time cleaning process are established; the method comprises the following steps: establishing elution efficiency evaluation parameters by using sump oil material balance data, analyzing the total amount elution effect of sump oil, residual characteristics of biochemical parts such as saturated hydrocarbon, aromatic hydrocarbon and colloid, and the residual amount of sump oil in fine-particle soil, so as to compare, evaluate, regulate and control the design and cleaning effect of a petroleum-contaminated soil cleaning process. And parameter optimization of the optimal cleaning technology and efficient treatment of the oily soil are assisted.

Description

technical field [0001] The invention belongs to the technical field of cleaning and disposal of oil-contaminated soil, and in particular relates to a material balance calculation method based on the cleaning and disposal process of oil-contaminated soil and its application. Background technique [0002] The rapid development of the petrochemical industry has greatly promoted the rapid progress of my country's social economy and brought considerable economic benefits. However, the extensive exploitation of petroleum resources and the deep processing and production of petrochemical products have also brought about the problem of environmental pollution. The situation of soil pollution has continued to emerge, resulting in the decline of soil environmental quality and the limitation of land use functions, which urgently need to be repaired and treated. , in order to realize the development and reuse of land resources. [0003] Since the development of the field of soil remedia...

AI Technical Summary

Problems solved by technology

However, for oil-contaminated soils, due to the strong non-polar characteristics of oil pollutants, the effect of conventional ex-situ soil cleaning technology is not stable.

At this stage, the cleaning effect that ex-situ cleaning practitioners pay attention to mainly comes from the residual amount of pollution in the soil after the final cleaning, but it is not actively grasped during the implementation of the cleaning process, especially under the conditions of multi-stage and multi-cycle cleaning. The material balance relationship of petroleum pollutants in each stage and various materials in the system, that is, if the precise control of the pollutant migration characteristics of the cleaning system is not realized, it is impossible to obtain precise control of the cleaning process

Images