System and method for treating wastewater containing organic matter by adsorption and preparing carbon nanomaterials

Abstract

The invention discloses a system treating organic matter containing waste water by using an adsorption method and for preparing a carbon nanomaterial, and a method thereof. The system includes a wastewater adsorption / desorption device, a concentrated waste liquid separation device, a carbon nano material production device, a tail gas oxidation device, and a heat exchanger between the carbon nanomaterial production device and the tail gas oxidation device, or a heat exchanger between the concentrated waste liquid separation device and the carbon nano material production device. Organic mattercontaining waste water can be discharged through the waste water adsorption / desorption device when reaching the standard through the method which uses the device to convert organic matters into a carbon nanomaterial and heat to perform recycling; the organic matters obtained by concentrated waste liquid after desorption through separating can be produced into the carbon nanomaterial through the carbon nano material production device; tail gas can be produced into high temperature flue gas in the tail gas oxidation device to provide heat for other devices in the system; and therefore, the problems of hard treatment of the concentrated organic matters can be solved, and adsorbent costs can be reduced, so that the system and the method thereof can have advantages of being low in energy consumption and large in operation elasticity.

Description

technical field [0001] The invention belongs to the technical field of chemical industry and environmental protection, and in particular relates to a system and method for treating waste water containing organic matter by an adsorption method and preparing carbon nanomaterials. Background technique [0002] The complex chemical production process often produces a large amount of wastewater containing organic matter, which accounts for almost 50% of all human production and domestic wastewater. Methods for treating wastewater containing organic matter usually include steam stripping, rectification, oxidation, biochemistry and absorption, etc. Among them, the adsorption method commonly uses various porous materials to treat low-concentration organic wastewater, which can reduce energy consumption compared with the rectification method, and has a wider application range and a smaller footprint than the biochemical method. If the activated carbon material is used in the adsorpt...

AI Technical Summary

Problems solved by technology

[0003] In addition, the concentrated organic waste liquid after desorption can sometimes be reused as a product, but most of the time, it is a very complex mixture, which is difficult to separate and has no obvious sales value

Disposal of these organic wastewaters is still costly

On the other hand, the high cost of carbon nanomaterials is one of the reasons hindering the expansion of its application fields.

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