Surface flow wetland water purification system with combined-type flows and water purification method

Abstract

The invention provides a surface flow wetland water purification system with combined-type flows and a water purification method. The surface flow wetland is rectangular in whole; one end of the surface flow wetland is a water inlet end; the other end of the surface flow wetland is a water outflow end; a flow guide plant group, a flow adjusting plant group, a stagger flow guide plant group and a stagger flow adjusting plant group form a unit; a glacis surface is arranged at the water inlet end of the surface flow wetland to reduce impact of water inflow to water bottom and plants; the planting area of an emerging plant rectangular flow guide group is two thirds of the area of the flow guide plant group; a manual float grass rectangular flow guide group is one third of the area of the flow guide plant group, and forms the flow guide plant group and the stagger flow guide plant group; the emerging plant rectangular flow guide group forms the flow adjusting plant group and the stagger flow adjusting plant group. The system is reasonable in design and layout, compact in structure, low in investment and running cost, short in construction period, fast in taking effect, convenient to manage, can be tightly combined with construction of urban landscape, and is helpful to urban landscaping; water purification is realized, and the goal of beautifying and landscaping a city is achieved at the same time.

Description

technical field [0001] The invention relates to a surface flow wetland system, in particular to a composite water flow surface flow wetland water purification system and a water purification method. Background technique [0002] As a new type of ecological sewage purification system, the surface flow wetland system is to plant good water plants on the wetland filler, and use the physical, chemical and biological triple synergies of soil, artificial media, plants and microorganisms to remove pollutants and nutrients in the water. Purification technology; the hydraulic path is dominated by push flow on the surface, and the water flow is slow, which is conducive to the full contact between the sewage and the surface of the medium covered with biofilm and dissolved oxygen to obtain purification. During the flow process, the biofilm absorption and Adsorbs most of the organic matter, and the insoluble matter in water can be quickly intercepted and removed or utilized by microorgan...

AI Technical Summary

Problems solved by technology

[0004] The performance optimization of the optimized surface flow wetland is single, and it cannot guarantee the long-term operation of the wetland system. Although the combination of the surface flow wetland and the vertical flow, subsurface flow wetland or other treatment processes can improve the reoxygenation capacity of the system and improve the water quality treatment effect, the cost is relatively high. High, especially for treatment processes such as biological adjustment pools, the operation and maintenance costs are relatively high, and it is not easy to control; the combination of baffle wetlands and diversion stems and other engineering measures can ensure that the water flow is in a state of uniform push flow, so that the water can fully integrate with wetland plants. Contact with wetland soil, reduce the dead water area that often exists in surface flow wetlands, and avoid the occurrence of short flow conditions

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