prevention apparatus for diffusion of vapour of in-situ soil purification system

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PURPOSE : A haze diffusion preventing apparatus of an in-paper purification system is provided to prevent haze generated in a process of injecting a medicinal fluid to purify polluted soil from being discharged through each purifying pipe gad and diffused in air and to prevent soil of a sludge form gushing out with the haze is flowed in into a haze removing unit. CONSTITUTION : A haze diffusion preventing apparatus of an in-paper purification system comprises a device body part(31) with an empty inner space, a haze vent(32), and a soil preventing film(33). The device body part is installed on a upper surface of the polluted soil so as to surround the upper part of a purifying pipe gad(10) in order to collect the haze ejected from the purifying pipe gad. The haze vent may be formed at the outer periphery of the device body part to eject the haze collected in the device body part to the outside and thus send to the haze removing unit. The soil preventing film has multiple through-holes. The soil preventing film is installed inside the device body part to allow only gas haze to pass through and filter soil of a sludge form together with unreacted medical fluid that is gushed out with the haze.