Clean production process for treating soluble organic solid wastes by renewable targeted adsorption

An organic solid and adsorption treatment technology, applied in the field of processing production solid waste and soluble organic solid waste, can solve the problems of secondary pollution, high environmental protection treatment cost, complicated process, etc. The effect of cleaning and improving treatment efficiency

Inactive Publication Date: 2017-12-05
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

AI Technical Summary

Problems solved by technology

However, the environmentally friendly biological treatment method cannot treat organic solid waste containing active organic matter that inhibits microbial growth, and incineration treatment has the characteristics of high energy consumption, complex process, and easy to produce secondary pollution, while increasing the tail gas treatment load and emission concentration of the incinerator , which increases the complexity, investment and processing loss of solid waste incineration equipment, making the treatment cost of organic solid waste high and the treatment effect unsatisfactory
Moreover, the organic solid waste incineration technology cannot effectively recover the high value-added organic matter in the incinerated solid waste, resulting in a waste of resources
These problems make the environmental protection treatment cost of organic solid waste higher and the recycling benefit poorer.

Method used

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  • Clean production process for treating soluble organic solid wastes by renewable targeted adsorption

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] In this example, a clean production process of regenerable targeted adsorption treatment of soluble organic solid waste is applied to the clean production process of soluble phthalic anhydride solid waste, including the following steps:

[0033] (1) Organic solid waste is produced in the production process of phthalic anhydride by oxidation of o-xylene, dissolved in 15% ethanol, and the high-concentration organic solid waste solution containing phthalic anhydride and benzoic acid is sent into a renewable targeted adsorption fixed bed The device performs targeted adsorption;

[0034] (2) Send the waste liquid flowing down after being adsorbed by the renewable targeted adsorption fixed bed device into the distillation tower, and the gas phase is condensed to obtain ethanol, and return to step (1) for recycling. The still residue (does not contain phthalic anhydride and benzoic acid, only High combustion value organic matter soluble in ethanol) is sent to the incineration ...

Embodiment 2

[0042] The steps of a clean production process for regenerable targeted adsorption treatment of soluble organic solid waste described in this example are the same as those in Example 1, with the difference that ethanol is regenerated with a hydrochloric acid solution with a mass fraction of 1.9% The final regenerable targeted adsorption device is forced to regenerate.

Embodiment 3

[0044]In this example, a clean production process for treating soluble organic solid waste by renewable targeted adsorption is applied to clean production for treating soluble salicylonitrile solid waste, including the following steps:

[0045] (1) Adopt salicylic acid, urea, sulfamic acid and catalyst (for magnesia and cyanuric chloride) to produce organic solid waste in the production process of salicylonitrile, be dissolved in toluene, will contain salicylonitrile, salicylic nitrile The high-concentration organic solid waste solution of amides and impurities (a small amount of urea, sulfamic acid, phenol, magnesium oxide and cyanuric chloride) is sent to a regenerative targeted adsorption fixed bed device for targeted adsorption;

[0046] (2) Send the waste liquid that flows down after being adsorbed by the renewable targeted adsorption fixed bed device into the distillation tower, and the gas phase is condensed to obtain toluene, and return to step (1) for recycling, and th...

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Abstract

The invention belongs to the field of organic solid waste treatment and particularly relates to a clean production process for treating soluble organic solid wastes by renewable targeted adsorption. The clean production process comprises the steps: adsorbing an organic solid waste solution dissolved by a solvent by using a targeted fixed bed adsorption device to obtain an overflow solution containing an organic matter with a low added value, and making the overflow solution enter a waste solution incinerator; carrying out chromatography and desorption processes on adsorption resin subjected to fixed bed targeted adsorption to obtain a chromatographic solution containing the organic matter and a desorption solution containing the organic matter; after carrying out chromatography on an adsorbent, carrying out distillation to remove a solvent for recovery to obtain an organic matter with a high added value from a kettle residual solution; and after desorbing the adsorbent, carrying out distillation to remove the solvent for recovery to obtain an organic matter with a high added value from the kettle residual solution or obtain an organic matter incinerated by using a complex process, and discharging the organic matter after carrying out biochemical and oxidation treatment. By using the clean production process, recycle is realized, sewage disposal and pollution are reduced, the treatment cost of an organic waste solution is reduced, economic benefits are generated, and clean production is realized.

Description

technical field [0001] The invention belongs to the field of organic solid waste treatment, in particular to a method for treating production solid waste, in particular to a method for treating soluble organic solid waste. Background technique [0002] Organic solid waste is solid waste generated in industrial production and processing. In recent years, with the rapid development of industrial engineering, the treatment of organic solid waste has become one of the important links in the production process. Due to the toxic, harmful, pungent odor, and strong corrosive organic substances that may be contained in organic solid waste, improper treatment will lead to unsatisfactory treatment effects, high treatment costs, and serious environmental pollution. [0003] At present, the industrially feasible organic solid waste treatment methods are mainly environmentally friendly biological treatment and incineration. Environmentally friendly biological treatment is mainly used fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28B09B3/00C02F101/30
CPCB09B3/00C02F1/285C02F2101/30C02F2303/16Y02W30/20
Inventor 吕志徐明胡弘冰徐心仪吕倩楠
Owner 江苏博纳科水务环保科技有限公司
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