Ammonia-containing wastewater treatment method and system for blue carbon production

Abstract

The invention discloses a treatment method and a treatment system of an ammonia-containing wastewater in semi-coke production, belonging to the technical field of a coal chemical industry. The method comprises the following steps: firstly, filtering ammonia-containing wastewater produced in the semi-coke production process; removing greasy dirt and residues in the wastewater, and then conveying the ammonia-containing wastewater to an air supply device of a dry distillation furnace through a pipeline; spraying mixed and atomized ammonia-containing wastewater and air into the dry distillation furnace so as to decompose a hazardous substance in the ammonia-containing wastewater by high temperature inside the dry distillation furnace; carrying out water-gas reaction on water vapor and raw material coal in the dry distillation furnace, and completely processing the ammonia-containing wastewater, so as to achieve innocent treatment. Compared with the traditional treatment technologies such as a biochemical process and a burning method, the technique is simple and feasible to implement, and simple and convenient to operate, the existing equipment can be transformed under the production state, and the ammonia-containing wastewater is effectively processed.

Description

technical field [0001] The invention belongs to the technical field of coal chemical industry, and in particular relates to a method and system for treating ammonia-containing wastewater produced by semi-coke. Background technique [0002] The traditional treatment method for semi-coke production of ammonia-containing wastewater is to mix it into the coke quenching water of the coke quenching tank at the bottom of the furnace for coke quenching. However, due to the pore structure of semi-coke itself, a large part of ammonia-containing wastewater will be taken away by adsorption and released into the atmosphere in the form of gas during the subsequent drying process. In the prior art, although the ammonia-containing wastewater generated in the semi-coke production process has been treated, it has also brought a series of pollution problems, which are mainly reflected in the following three aspects: [0003] 1. Ammonia-containing wastewater contains a large amount of ammonia ...

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Problems solved by technology

[0006] In order to overcome the defects in the above-mentioned prior art, the purpose of the present invention is to provide a treatment method and system for ammoniacal wastewater produced by semicoke, which can effectively treat the ammoniacal wastewater produced by the semicoke plant, and effectively solve the problem of traditional semicoke ammoniacal wastewater treatment. environmental pollution

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