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Device and method for treating high-concentration degradation-resistant organic wastewater by supercritical water oxidation process

A technology for supercritical water oxidation and organic wastewater, which is applied in oxidation water/sewage treatment, chemical instruments and methods, adsorbed water/sewage treatment, etc. It can solve problems such as equipment and pipeline blockage, reduce scaling and save use. , to ensure the effect of long-term safe operation

Active Publication Date: 2014-04-02
INNER MONGOLIA UNIV OF TECH
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Problems solved by technology

The precipitation of inorganic salts caused serious blockage of equipment and pipelines

Method used

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  • Device and method for treating high-concentration degradation-resistant organic wastewater by supercritical water oxidation process
  • Device and method for treating high-concentration degradation-resistant organic wastewater by supercritical water oxidation process

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Embodiment Construction

[0030] Such as figure 1 As shown, the supercritical water oxidation method of the present invention treats high-concentration refractory organic wastewater device, including jacketed reactor (1), hydraulic device (2), reactor pressure interlock control device (3), adsorbent filling A device (4), a compressor (5), a booster pump (6), a heating system for heating (7), a cooler (8), a back pressure control valve (9), and a gas-liquid separator (10).

[0031] Such as figure 2As shown, the jacketed reactor (1) is characterized in that the reactor is in the form of a jacket, and the inner cylinder (19) is provided with an inner cylinder fixing plate (18), and the lower ends of the inner cylinder (19) and the outer cylinder (20) are both It is a spherical head, the upper end passes through the upper end cover (12) and the lower flange (13), and the gasket (17) is placed up and down the inner cylinder fixing plate (18), and the sealing of the reaction kettle and the inner cylinder (...

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Abstract

The invention relates to a device for treating high-concentration degradation-resistant organic wastewater by a supercritical water oxidation process. The device comprises a jacket type reaction kettle (1), a hydraulic device (2), a reaction kettle pressure interlocking control device (3), an adsorbent filling device (4), a compressor (5), a booster pump (6), a warming and heating system (7), a cooler (8), a backpressure control valve (9) and a gas-liquid separator (10). A certain amount of adsorbent (active silicon powder) is added into the organic wastewater, the adsorbent and the organic wastewater are uniformly mixed together by virtue of a stirrer and the mixture enters into a reactor, and grain size of the active silicon powder is very small, so that pipeline blockage is not caused, and inorganic salt produced by reaction in the reactor can be adsorbed; the inorganic salt flows out of the reactor together with a product and then enters a settling tank; separation of the adsorbent and treated liquid is realized in the settling tank by adding a flocculating agent or naturally settling. According to the supercritical device, corrosion on equipment under a supercritical state is reduced and the equipment cost is lowered by virtue of matching of the jacket type reaction kettle and the hydraulic system; meanwhile, the adsorbent is added, so that an equipment blockage problem caused by inorganic salt separation is avoided, and industrialization is easy to realize.

Description

technical field [0001] The invention relates to the field of supercritical water oxidation treatment of high-concentration refractory organic wastewater, in particular to a device and method for supercritical water oxidation treatment of high-concentration refractory organic wastewater, belonging to the field of water treatment. Background technique [0002] Supercritical water oxidation (SCWO) is a high-concentration refractory organic wastewater treatment technology with the characteristics of strong adaptability, wide application range, energy saving consumption, and high treatment efficiency. Due to the harsh conditions of the supercritical water oxidation process, the requirements for the equipment are high, and the problems of the corrosion of the reactor and the precipitation and deposition of inorganic salts to block the equipment have not been effectively solved, which hinders the industrial application of this technology. Therefore, the corrosion and salting-out pr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F1/28C02F9/04B01J20/10C02F1/52C02F101/30
Inventor 崔景东张永锋季伟王晓燕
Owner INNER MONGOLIA UNIV OF TECH
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