Advanced oxidation reaction device for purifying petroleum-contaminated soil
An advanced oxidation and reaction device technology, applied in the field of environmental pollution control, can solve the problems of difficult biochemical treatment process, high long-term investment cost, low treatment efficiency, etc., and achieve the effect of simple and convenient treatment process, shortened operation period and high treatment efficiency.
Inactive Publication Date: 2018-02-23
NANJING HYDRAULIC RES INST
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Problems solved by technology
[0006] Purpose of the invention: Aiming at the problems existing in the prior art, the present invention provides an advanced oxidation reaction device for purifying polluted soil, which overcomes the difficulties in the biochemical treatment process in the prior art, huge energy consumption, high long-term investment cost, and high treatment efficiency. Low problem, it can purify polluted soil, and the effect of purification treatment is good, no secondary pollution will be produced
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[0022] Such as figure 1 As shown, a device for purifying oily soil includes a radiation instrument 1, a conveyor belt 2 and a feed hopper 3. The radiation instrument 1 is a gamma ray radiation instrument, and the gamma ray is emitted by a radioactive cobalt-60 element in an energy range of 1.17 MeV ~ 1.33MeV gamma rays. The conveyor belt 2 is located directly above the radiation instrument 1, and the material of the conveyor belt 2 is stainless steel. The feeding hopper 3 is located above the side of the conveyor belt 2; the radiation-proof wall 4 is arranged around the radiation instrument 1, and the radiation wall 4 is made of a cement concrete wall with a thickness greater than 2m; 1 below.
[0023] When purifying the oily soil, the oily soil to be treated is evenly sprinkled on the conveyor belt 2 through the feed hopper 3, and the conveyor belt 2 moving at a uniform speed slowly passes the top of the radiation instrument 1 with the oily soil, at this time, the radiation...
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The invention discloses an advanced oxidation reaction device for purifying petroleum-contaminated soil. The advanced oxidation reaction device for purifying the petroleum-contaminated soil comprisesa radioactive ray instrument, a conveying belt and a feeding hopper. The conveying belt is located over the radioactive ray instrument. The feeding hopper is located above one side of the conveying belt. A radiation shield wall is arranged around the radioactive ray instrument and is internally provided with a water tank located below the radioactive ray instrument. The advanced oxidation reactiondevice is used for purifying the petroleum-contaminated soil through gamma radioactive rays, and the radioactive rays are used for removing various poisonous and persistent organic pollutants in thepetroleum-contaminated soil. The device can achieve full-automatic operation, convenient operation and management, and high processing efficiency, avoids secondary pollution, and can effectively process pollutants such as pesticides, oils, polychlorinated biphenyl and dioxin in the petroleum-contaminated soil. The processing technology of the device is simple and convenient, residence time is short, the operation period is greatly shortened, operation efficiency is improved, the purposes of energy conservation and emission reduction can be realized, and processing cost is lowered.
Description
technical field [0001] The invention belongs to environmental pollution control, in particular to an advanced oxidation reaction device for purifying polluted soil by using gamma rays. Background technique [0002] Petroleum in the soil will infiltrate downward and pollute groundwater, or be carried by rainwater to pollute surface water, affecting water safety and crop growth safety, and causing secondary pollution to the surrounding environment. Moreover, toxic and harmful substances such as heavy metals, pesticides or aromatic compounds in oily soil will remain, and they will be enriched in crops in the soil and affect human health through the food chain. [0003] At present, research on the purification technology of polluted soil is a focus of current environmental protection workers. Existing methods for purifying soil mainly consist of incineration, thermal decomposition, and the use of catalysts and microorganisms. Among them, more thermal decomposition methods are ...
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IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 陈求稳罗明汉片瑞軟施文卿余居华关铁生林育青
Owner NANJING HYDRAULIC RES INST