An ecological water restoration device and restoration method

Abstract

The invention discloses an ecological water body restoration device which comprises a housing, a water inlet pump, a water outlet pump, a first partition, a second partition, a third partition and a fourth partition, wherein the housing is divided into a preliminary filter area, a secondary filter area, an electric flocculation area, a biological reaction area and a water outlet area by the first partition, the second partition, the third partition and the fourth partition; the water inlet pump is connected with the preliminary filter area; a grid is arranged at the upper part of the preliminary filter area; a hydraulic driving mechanism is arranged below the grid; the secondary filter area is connected with the bottom of the preliminary filter area via a pipeline and a water pump; the secondary filter area is provided with a vibrating filter mechanism; the electric flocculation area is provided with positive and negative flocculation electrodes and communicated with the secondary filter area; the biological reaction area is provided with a curtain biological membrane component and communicated with the electric flocculation area; an upper circulation channel and a lower circulation channel are arranged between the top of the fourth partition and the housing and between the bottom of the fourth partition and the housing; and the water outlet pump is connected with the water outlet area via a water outlet pipe. The device has the characteristics of in-situ ecological restoration, modular assembly, no civil construction, high treatment efficiency and the like. The invention further discloses an ecological water body restoration method which has the advantages of simple technical steps, low operating cost and the like.

Description

technical field [0001] The invention relates to the technical field of water treatment, in particular to an ecological water restoration device and restoration method. Background technique [0002] Existing river water treatment technologies can be roughly divided into three categories: (1) chemical method, directly adding one or more strains of microorganisms and microbial growth promoters that have been cultivated and screened into polluted river water. At present, there are many controversies about the bioremediation technology of directly adding microbial strains to polluted water bodies, and the focus is on whether the use of bacterial strains will bring about environmental safety issues; Carry out artificial oxygenation, increase the self-purification ability of the river, improve water quality, improve and restore the ecological environment of the river; (3) Artificial floating island technology, that is, on the water surface of the river and lake, build a structure t...

AI Technical Summary

Problems solved by technology

[0003] The three common methods currently have their own shortcomings: (1) the common problem of the pharmaceutical method is that it does not work on low-concentration organic matter, and the suspended matter in the water has been staying in the water without treatment, resulting in the accumulation of suspended matter; ( 2) River channel aeration and reoxygenation technology mainly improves the effect of ammonification and nitrification by oxygenating water, and transforms organic ammonia into nitrate nitrogen, but the total nitrogen remains in the water without removal; another fatal shortcoming is the The hydraulic conditions are not suitable for the growth of activated sludge, and there is oxygen without activated sludge, resulting in low removal efficiency of organic matter; (3) artificial floating island technology mainly relies on aquatic organisms to use and degrade organic nutrients in sludge, but the organic matter in flowing water And ammonia nitrogen has no degradation ability, so the removal effect is poor, and it can only be used as a supplement and consolidation of other technologies

Images