A method for desalting fermented regenerated water

Abstract

The invention relates to a method for desalination of fermented regenerated water, belonging to the technical field of sewage treatment. The method comprises four steps of precipitation, filtration, wetland treatment and electrodialysis treatment. The method first fully mixes the fermented regenerated water that has reached the standard with inorganic flocculants, It can improve the subsequent sedimentation effect in the sedimentation tank. At the same time, by reasonably setting the structure of the sedimentation tank, the sedimentation effect of the fermentation regenerated water in the sedimentation tank can be further improved, and the metabolism of the roots of the aquatic plants in the constructed wetland can be used to treat the organic matter in the water and pass it through. The packing layer absorbs organic matter and inorganic salts in the water to further purify the fermented and regenerated water. Finally, it gathers in the water collection pipe layer in the constructed wetland and flows out from the outlet of the constructed wetland, and enters the electrodialysis system, so that the final treated fermentation and regenerated water can be converted into direct use. The water source for forest soil irrigation can solve the problem that currently restricts the environmental protection treatment of fermentation and reclaimed water that has reached the standard but cannot be directly discharged.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment, and in particular relates to a method for desalting fermented regenerated water. Background technique [0002] Water is the source of life, the basis for maintaining urban activities, the constraint factor of social and economic development, and the lifeblood of a country's economic development. However, with the continuous development of society, the continuous progress of human civilization and the increase of population, the sharp increase in water consumption, water pollution, unreasonable development of water sources and serious waste of water resources are causing a global water crisis. my country is a country with insufficient fresh water resources, and the per capita water resources are less than 1 / 4 of the world average. In recent years, my country's forest land and urban green space have developed rapidly, and the increase in green space will inevitably aggravate the contradict...

AI Technical Summary

Problems solved by technology

Physical and chemical methods mainly include evaporation method, electrochemical method, ion exchange method, adsorption, membrane separation technology, etc., which can remove the salt in wastewater in some applications, but generally face higher costs and easily cause regeneration of wastewater. secondary pollution

Therefore, it is not very suitable to remove salt through the advanced treatment process of reclaimed water

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