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Clean production process of treating high concentration to-be-incinerated organic waste liquor by reproducible targeted adsorption

An organic waste liquid and adsorption treatment technology, which is applied in the direction of adsorption water/sewage treatment, water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of waste of resources, complicated process, high cost of environmental protection treatment, etc., and achieve saving Treatment cost, improve treatment efficiency, solve the effect of desorption unclean

Inactive Publication Date: 2017-11-28
江苏博纳科水务环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

At the same time, considering the problem of secondary pollution, it is required that the toxic, harmful and corrosive gases produced in the incineration process must be collected and treated, which increases the treatment load and emission concentration of the incinerator tail gas.
The waste liquid incineration technology has the characteristics of high energy consumption, complex process and easy to produce secondary pollution, which increases the equipment complexity, investment level and processing loss of the waste liquid incineration technology. The treatment cost is high and the treatment effect is not ideal
At the same time, the waste liquid incineration technology cannot effectively recover the high value-added organic matter in the incineration waste liquid, resulting in waste of resources
These problems make the environmental protection treatment cost of organic waste liquid incineration relatively high, and the recycling benefit is poor

Method used

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  • Clean production process of treating high concentration to-be-incinerated organic waste liquor by reproducible targeted adsorption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] In this example, a clean production process for treating high-concentration organic waste liquid to be incinerated by renewable targeted adsorption is applied to a clean production process for treating high-concentration caprolactam organic waste liquid to be incinerated, including the following steps:

[0029] (1) The toluene method is used to prepare the organic wastewater generated in the production process of caprolactam, and the high-concentration organic waste to be incinerated containing caprolactam, toluene, acetic acid and other impurities (a small amount of benzoic acid, hexahydrobenzoic acid, and nitroterephthalic acid) is The waste liquid is sent to a regenerative targeted adsorption fixed bed device for targeted adsorption;

[0030] (2) Send the overflow liquid containing high concentration of organic impurities after being adsorbed by the regenerative targeted adsorption fixed bed device to the waste liquid incineration device for incineration;

[0031] (3...

Embodiment 2

[0038] The steps of a clean production process for treating high-concentration organic waste liquid to be incinerated by renewable targeted adsorption described in this example are the same as those in Example 1, with the difference that: the sulfuric acid solution with a mass fraction of 1.4% is used to The regenerable targeted adsorption device undergoes forced regeneration after ethanol regeneration.

Embodiment 3

[0040] In this example, a clean production process for treating high-concentration organic waste liquid to be incinerated by renewable targeted adsorption is applied to the clean production of high-concentration acrylonitrile organic waste liquid to be incinerated, including the following steps:

[0041] (1) Adopt the propylene ammoxidation method to prepare the organic waste water produced in the acrylonitrile production process, carry out the membrane separation treatment through the reverse osmosis membrane separation device, will flow down containing acrylonitrile, acetonitrile and other organic impurities (being a small amount of acrolein and acrylic acid) High-concentration organic waste liquid to be incinerated is sent to a regenerative targeted adsorption fixed bed device for targeted adsorption;

[0042] (2) Send the overflow liquid containing high concentration of organic impurities after being adsorbed by the regenerative targeted adsorption fixed bed device to the w...

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Abstract

The invention belongs to the field of waste water treatment and in particular relates to a clean production process of treating high concentration to-be-incinerated organic waste liquor by reproducible targeted adsorption. The process comprises the following steps: additionally arranging a targeted fixed bed adsorption device in front of a waste liquor incineration device and performing adsorption by means of the targeted fixed bed adsorption device, and feeding obtained overcurrent liquid containing low additional value organic maters into the waste liquor incineration device; performing chromatographic and desorbing processes on adsorbing resin after targeted adsorption of the fixed bed to obtain a chromatographic liquid and a desorbing liquid containing the organic matters; after chromatography of an adsorbent, distilling to remove a solvent for reuse, and obtaining high additional value organic matters from a kettle residual liquid; and after desorbing the adsorbent, distilling to remove a solvent for reuse, obtaining high additional value organic matters from the kettle residual liquid or obtaining complicated organic matters by an incineration disposal process, and discharging after biochemical and oxidizing treatment. Resource cyclic utilization is realized, pollution discharge is reduced, pollution is reduced, the treatment cost of organic waste liquor is lowered, the economical benefit is generated, and the clean production is achieved.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a wastewater treatment method, in particular to a method for treating high-concentration organic waste liquid to be incinerated. Background technique [0002] The essence of waste liquid incineration is the process of deep oxidation of organic matter at high temperature, and the heat generated in the oxidation process further accelerates the oxidation rate, and finally decomposes organic matter into flue gas emission. Waste liquid incineration technology requires pretreatment, that is, separation of clear and turbid waste water, evaporation and concentration. At the same time, considering the problem of secondary pollution, it is required that the toxic, harmful and corrosive gases produced in the incineration process must be collected and treated for tail gas, which increases the tail gas treatment load and emission concentration of the incinerator. The waste liq...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28C02F101/30
CPCC02F1/285C02F2101/30
Inventor 吕志徐明徐心仪吕倩楠
Owner 江苏博纳科水务环保科技有限公司
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