Resin adsorption treatment process of high-salt wastewater containing amine system

Abstract

The invention discloses a resin adsorption treatment process of a high-salt wastewater containing an amine system. The resin adsorption treatment process mainly comprises the following specific steps:adjusting the pH value of raw water, feeding the adjusted raw mater into a raw water pool, pumping the raw water into a precise filter and filtering out mechanical impurities; enabling outlet water to enter a resin adsorption tower; enabling outlet water after resin adsorption to enter a resin outlet water tank, performing triple effect evaporation for evaporative crystallization and enabling mother liquid to return to a raw water buffer tank; performing desorption after adsorption, washing with water and enabling washing water to enter the raw water pool; performing desorption with methanol,evaporating desorption liquid and enabling evaporated methanol to enter a rectifying tower for refining; washing with water, feeding washing water into the rectifying tower for refining, recycling methanol at the top of the tower and feeding kettle residues into a dehydrogenation tower; enabling an ingredient at the top of the dehydrogenation tower to return to the rectifying tower and feeding kettle residues into the raw water pool. Compared with the prior art, the resin adsorption treatment process has the advantages of being low in operating cost, low in investment cost of equipment and high in removal rate, causing no secondary pollution, being cleaner, being high in selectivity and good in regeneration of the equipment and having reusability.

Description

technical field [0001] The invention relates to the technical field of wastewater resin adsorption, in particular to an amine-containing system high-salt wastewater resin adsorption treatment process. Background technique [0002] The high-salt wastewater containing amine system mainly contains aniline compounds, nitrobenzene, sulfide, etc. The composition of the wastewater is complex and highly toxic. Its main characteristics are: (1) High concentration of pollutants, chemical oxygen demand (COD) It can reach tens of thousands of milligrams per liter; (2) It is highly toxic. In addition to pesticides and intermediates, the wastewater also contains toxic substances such as phenol, arsenic, mercury, and many biodegradable substances; The respiratory tract and mucous membrane are irritating; (4) The water quality and quantity are unstable. As a result, its treatment problem has not been solved for a long time, and direct discharge poses a serious threat to environmental pollu...

AI Technical Summary

Problems solved by technology

The Fenton method has low treatment efficiency and high secondary pollution; wet oxidation has high cost, high operation risk, and high requirements for equipment material and quality

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