In Situ Treatment Apparatus applying Pneumatic Fracturing and Forced Extraction for oil contaminated Soil

摘要

The present invention relates to an infusion pump comprising an infusion pump, an air compressor for supplying high pressure air for underground crushing into the infusion chamber, a pressure vessel and a compressed air control valve, an oxidant injector connected to the injection port for oxidizing the contaminated soil, A microorganism injector and a microorganism injection pump connected to the injection well to biologically treat the contaminated soil, a nutrient injector and a nutrient injection pump for feeding nutrients to the microorganism, An automatic control device for automatically extracting volatile and non-volatile contaminants from the contaminated soil during the treatment of the contaminated soil through the extraction well, measuring the contamination level of the contaminated soil layer and automatically controlling the contaminated soil layer to be treated in an optimal operation, Purification of oil-contaminated soil consisting of field instruments connected to the device to measure the real-time state of the infusion medium and extract The apparatus of claim 1, wherein the injection nozzle has a fixed length with a lower end opened and has a flange formed with a bolt hole on an upper surface thereof, a lower end closed and a plurality of nozzles installed on an outer wall of the lower area, And a second flange having a bolt hole on an upper surface thereof and an internal supply pipe provided inside the injection pipe while the second flange is bolted to the flange. Thus, oil pollution such as gasoline, diesel, So that it is possible to inject the ground-breaking air and the purification medium into the soil; Wherein the extracted tablets have a predetermined length with a lower end opened and have a flange with a bolt hole formed on an upper surface thereof; a first tube having a lower end closed and a plurality of micropores provided on an outer wall of the lower region, A second flange having a flange and a bolt hole on an upper surface thereof and an extraction screen tube provided inside the extraction pipe while the second flange is bolted to the flange, To induce underground crushing of contaminated soil and to extract volatile and non-volatile contaminants outside the contaminated soil treatment; A vacuum pump connected to the extraction well to generate a vacuum in the extraction well to induce underground crushing; a gas-liquid separation tank and pump for separating gas and liquid from the extracted volatiles; and an activated carbon adsorption tank for treating the volatilized gas And further comprising: Therefore, in the existing in-situ underground treatment method, the permeability coefficient is naturally high such as sandy soil, so that it is limitedly applied only to the contaminated soil having high hydraulic conductivity. The present invention improves the hydraulic conductivity by causing ground fracture in the contaminated soil having low permeability coefficient, , Chemical, biological or complex process purification treatment is enabled, and efficient and stable contaminants can be removed. In addition, it is possible to grasp the operation status in real time by applying the measuring instrument and control program and to optimize the injection amount of the injection air and the treatment medium according to the characteristics of the contaminated soil, thereby shortening the treatment period and reducing the treatment cost There is an effect.