Multi-stage ecological combined wastewater deep treatment system

Abstract

The invention provides a multi-stage ecological combined wastewater deep treatment system comprising a grille, a grit basin, a lifting pump station, a water distribution well, an ecological tank, a filter tank, a modified wetland, a sterilizing segment, and a metering device that arranged according to a water flow direction; the ecological tank sequentially comprises an ecological combination area, a coagulation-reaction area, and a plant filtering and settling area; the filter tank is a fiber turnplate filter tank or a continuous flow grit filter tank or a buried back-flushing filter tank having low waterhead loss; the modified wetland sequentially comprises a water distribution well, a water distribution channel, a vertical flow wetland, a rectifying channel, an underflow wetland, a collection well, and a filtering well. The multi-stage ecological combined wastewater deep treatment system can be used to create a good landscape environment, and the adverse effect of the construction of a conventional wastewater plant upon surroundings is reduced.

Description

technical field [0001] The invention relates to the fields of water pollution control and advanced sewage treatment, in particular to a multi-stage ecologically combined advanced sewage treatment system. Background technique [0002] Water pollution control technologies include physical methods, chemical methods, physicochemical methods, and biological methods. Usually, the combination of the above methods can basically meet the discharge standards stipulated by the state. [0003] Sewage advanced treatment refers to the further water treatment process in which urban sewage or industrial wastewater is treated in the first and second stages, in order to achieve a certain reuse water standard so that the sewage can be reused as a water resource for production or life. For the raw water quality and treated water quality requirements of sewage (wastewater), a tertiary treatment or multi-level treatment process can be further adopted. Sewage advanced treatment is often used to r...

AI Technical Summary

Problems solved by technology

However, conventional sewage plants have adverse effects on the surrounding environment while controlling water pollution and advanced sewage treatment.

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