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Salt-containing and difficult-to-oxidize organic matter quality-based treatment system and process

A technology for fractional treatment and organic matter, applied in the direction of oxidation water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc., can solve the problems of limited reactor size, limited size scale, reactor clogging, etc., to achieve The material cost is reduced, the welding seam is less, and the material is used with good effect

Active Publication Date: 2020-08-14
克拉玛依九工环保技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] For the treatment of high-organic, high-ammonia-nitrogen, and highly toxic waste salt-containing phenolic water, supercritical oxidation technology is mostly used in the prior art, but conventional supercritical treatment faces two bottlenecks that are difficult to solve. One is the precipitation of salt in the supercritical state. The clogging of the reactor, followed by the influence of the pressure and temperature of the reactor and strong oxidation corrosion, limits the size of the reactor, that is, limits the size and scale

Method used

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  • Salt-containing and difficult-to-oxidize organic matter quality-based treatment system and process
  • Salt-containing and difficult-to-oxidize organic matter quality-based treatment system and process
  • Salt-containing and difficult-to-oxidize organic matter quality-based treatment system and process

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Effect test

Embodiment 1

[0025] Embodiment 1: as figure 1As shown, a salty and refractory organic matter separation treatment system includes a multi-effect evaporator 1, a preheating heat exchanger 2, a supercritical reactor 3, a multi-stream heat exchanger 4, an incineration torch 5, and a concentration device 6. The supercritical reactor 2 is provided with an upper feed port 3.1 of the supercritical reactor and a lower feed port 3.2 of the supercritical reactor, and the lower feed port 3.2 of the supercritical reactor is located in the middle and lower part of the side wall of the supercritical reactor 3, and more The evaporator 4 is condensed by circulating water, the non-condensable gas outlet 1.1 of the multi-effect evaporator is connected with the incineration torch 5, the concentrated liquid outlet 1.2 of the multi-effect evaporator is connected with the material inlet 6.1 of the concentration equipment, and the concentrated liquid outlet 6.2 of the concentration equipment is connected with the...

Embodiment 2

[0026] Embodiment 2: as figure 2 As shown, a salty and refractory organic matter separation treatment system includes a multi-effect evaporator 1, a preheating heat exchanger 2, a supercritical reactor 3, a multi-stream heat exchanger 4, an incineration torch 5, and a concentration device 6. The supercritical reactor 2 is provided with an upper feed port 3.1 of the supercritical reactor and a lower feed port 3.2 of the supercritical reactor, and the lower feed port 3.2 of the supercritical reactor is located in the middle and lower part of the side wall of the supercritical reactor 3, and more The evaporator 4 is condensed by circulating water, the non-condensable gas outlet 1.1 of the multi-effect evaporator is connected with the incineration torch 5, the concentrated liquid outlet 1.2 of the multi-effect evaporator is connected with the material inlet 6.1 of the concentration equipment, and the concentrated liquid outlet 6.2 of the concentration equipment is connected with t...

Embodiment 3

[0027] Embodiment 3: as figure 1 As shown, a process for the separation and treatment of salt-containing and refractory organic matter comprises the following steps: the salt-containing and phenol-containing waste water is evaporated by a multi-effect evaporator 1, and the waste gas of the multi-effect evaporator 1 is incinerated by the incineration torch 5, and after the multi-effect evaporation The concentrated wastewater enters the concentration equipment 6 for concentration, and the waste gas produced after concentration by the concentration equipment 6 is incinerated by the incineration torch 5, the steam concentrated by the concentration equipment 6 is discharged, and the concentrated liquid after concentration by the concentration equipment 6 is heated by the preheating heat exchanger 2 Then it is further heated by the multi-stream heat exchanger 4 and mixed with the clear water heated by the preheating heat exchanger 2 and the multi-stream heat exchanger 4 to a supercri...

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Abstract

The invention discloses a salt-containing and difficult-to-oxidize organic matter quality-based treatment system. A first material outlet of a multi-flow heat exchanger is communicated with a feedingport in the upper portion of a supercritical reactor through a first pipeline, a clear water pipeline is communicated with a second material inlet of a preheating heat exchanger, a second material outlet of the preheating heat exchanger is communicated with a second material inlet of a multi-flow heat exchange medium, a second material outlet of the multi-flow heat exchange medium is communicatedwith the first pipeline, a salt water outlet of the supercritical reactor is communicated with a medium inlet of the preheating heat exchanger, a medium outlet of the preheating heat exchanger is communicated with a material heating medium inlet of concentration equipment, a reaction fluid outlet of the supercritical reactor is communicated with a medium inlet of the multi-flow heat exchanger, anda medium outlet of the multi-flow heat exchanger is communicated with a feeding hole in the lower part of the supercritical reactor. The invention further discloses a salt-containing and difficult-to-oxidize organic matter quality-based treatment process. The supercritical reactor provided by the invention is not easy to block.

Description

technical field [0001] The invention relates to the field of salt-containing and phenol-containing wastewater treatment, in particular to a system and process for separate treatment of salt-containing and refractory organic matter. Background technique [0002] Chemical plants, pesticide plants, and printing and dyeing plants discharge high-organic, high-ammonia-nitrogen, highly toxic, salty, and phenolic wastewater that is difficult to treat. At present, it is usually diluted first before treatment. The processing cost is high and the processing is not thorough. Some toxic substances have only reached the discharge standard after dilution, but have not really been transformed into harmless substances, and the total amount of toxic substances has not changed. [0003] For the treatment of high-organic, high-ammonia-nitrogen, and highly toxic waste salt-containing phenolic water, supercritical oxidation technology is mostly used in the prior art, but conventional supercritic...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/10F23G7/06F28D7/08C02F101/34
CPCC02F1/048C02F1/72F23G7/06F28D7/082C02F2101/345Y02P20/54
Inventor 叶春纪拥军顾法生单朝辉于淼徐健江
Owner 克拉玛依九工环保技术有限公司