Soil thermal desorption rotary furnace testing system and testing method thereof

Abstract

The invention provides a soil thermal desorption rotary furnace testing system and a testing method thereof. The testing system comprises a carrier gas device, a rotary thermal desorption testing device, and a tail gas treatment device, wherein the carrier gas device comprises a nitrogen bottle, a pressure reducing valve and an air inlet erosion-resistant air guide hose; the rotary thermal desorption testing device comprises a pipe type rotary furnace, an air inlet air pressure valve, a flow meter and an air outlet air pressure valve; and the tail gas treatment device comprises an air outlet erosion-resistant air guide hose, a condenser, a gas washing bottle and an active carbon adsorbing device. The testing system and the testing method can be used for effectively and rapidly testing a contaminated soil thermal desorption condition, and can obtain important technique design parameters such as a nitrogen ventilation pressure, a heating rate, a rotating speed of a furnace tube, retaining time and desorption efficiency before a soil thermal desorption technology is applied to actual engineering, so that the scientific guidance and the technical support are provided for the actual application of the soil thermal desorption repairing technology. Thus, the soil thermal desorption rotary furnace testing system provides the basis for the actual engineering.

Description

technical field [0001] The invention belongs to the technical field of contaminated soil remediation, and in particular relates to a soil thermal desorption test system and a test method. Background technique [0002] Since the end of the last century, with the adjustment of industrial structure and the expansion of urban scale, a large number of high-polluting enterprises such as iron and steel plants and chemical plants in my country have ceased production and moved one after another, so a large number of polluted sites have been left behind. One of the hotspot areas of conservation technology. [0003] One of the most common soil remediation technologies now is soil thermal desorption remediation technology, which can effectively remediate most volatile and semi-volatile organic polluted soils and some volatile metal polluted soils. Compared with other treatment technologies, it has the characteristics of high removal rate and fast speed. The principle of soil thermal de...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a soil thermal desorption rotary furnace test system and test method, to solve the problem that the application of the existing soil thermal desorption restoration technology lacks a reliable laboratory test system and test method

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