System for removing COD by cracking and incinerating wastewater
A waste water and removal technology, applied in incinerators, combustion methods, combustion types, etc., can solve the problems of difficult discharge, the system cannot operate normally, and the equipment pipeline is fouled, and achieves high economic efficiency and reasonable process structure design. , good technical effect
Active Publication Date: 2021-07-23
四川零域环保科技有限公司
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Problems solved by technology
None of the above-mentioned conventional schemes are suitable for treating COD, even if it is treated by the above-mentioned method, it is difficult to discharge up to the standard; and high-concentration COD has a significant impact on other wastewater treatment processes, such as the multi-effect evaporation system, which will lead to serious fouling of equipment pipelines , the system does not function properly
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[0033] In conjunction with the accompanying drawings of the description, aiming at the technical solution of the present invention, the following further specific implementation designs are made.
[0034] Such as figure 1 The shown waste water pyrolysis and incineration COD removal system includes waste water delivery subsystem, pyrolysis reactor subsystem, flue gas subsystem and heat exchange subsystem.
[0035]The treatment process for removing COD through each subsystem is as follows: the wastewater delivery subsystem transports the industrial wastewater containing high concentration of COD to the heat exchange subsystem, and preheats the industrial wastewater through the heat exchange subsystem; after preheating The industrial wastewater enters the pyrolysis reactor subsystem. In the pyrolysis reactor subsystem, the industrial wastewater is sprayed, and the sprayed wastewater droplets fully contact with the high-temperature flue gas generated by natural gas combustion. Th...
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The invention discloses a system for removing COD by cracking and incinerating wastewater. The system is characterized in that industrial wastewater containing COD is conveyed to a heat exchange subsystem through a wastewater conveying subsystem, the industrial wastewater is preheated through the heat exchange subsystem, the preheated industrial wastewater enters a high-temperature cracking reactor subsystem for secondary heating cracking, wastewater droplets are subjected to cracking reaction to generate carbon dioxide, water and other compounds, the COD is reduced to a required index, the treated wastewater is collected and then enters a next process section, the carbon dioxide and other compounds enter the heat exchange subsystem to realize waste heat recovery, flue gas passing through the heat exchange subsystem enters a flue gas subsystem, the flue gas is discharged to the atmosphere after being washed to reach the standard, and the washing wastewater enters a common sewage treatment system. Therefore, the COD removal rate of the industrial wastewater can reach 99% or above, the COD in the industrial wastewater can be less than or equal to 50mg / L, and the emission standard and the process technical requirements of other links of wastewater treatment are met.
Description
technical field [0001] The invention relates to the technical field of waste water environmental protection treatment, in particular to a waste water cracking and incineration COD removal system. Background technique [0002] With the rapid development of my country's economy, industrial construction has made great progress, but the industrial wastewater generated in the production process is also increasing day by day, and the resulting environmental pollution problems are becoming more and more serious. Relevant environmental protection policy requirements are becoming increasingly stringent, and the industrial enterprises involved need to conduct in-depth treatment of the industrial wastewater they produce, and even finally achieve zero discharge of wastewater. [0003] For wastewater treatment, according to the treatment methods, it mainly includes physical adsorption method and membrane separation method. If it is based on chemical reaction, it mainly includes Fenton ox...
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Patent Timeline
Login to View More IPC IPC(8): F23G5/027F23G5/08F23G5/44F23G7/04F23J15/02F23J15/04F23J15/06
CPCF23G5/027F23G5/08F23G5/44F23G7/04F23J15/02F23J15/04F23J15/06Y02E20/30
Inventor 曹立勇黄翔曾玲玲
Owner 四川零域环保科技有限公司