Multi-baffle subsurface flow constructed wetland system

Abstract

The invention relates to a constructed wetland system, and particularly relates to a multi-baffle subsurface flow constructed wetland system which can enable water to repeatedly flow through multiple baffles. In the wetland system, low flow regulation walls and high flow regulation walls are sequentially and alternately distributed in the water flow direction of the wetland, wherein the lower part of each low flow regulation wall is provided with a penetrable low flow guide hole; and each high flow regulation wall is a water overflow wall or a water penetration wall of which the upper part is provided with a high flow guide hole. Each low flow regulation wall is provided with the low flow guide hole in the multi-baffle subsurface flow constructed wetland system, so that the low flow regulation wall can be directly constructed at the bottom of the wetland system in the construction process without using an overhung structure, thus lowering the construction cost, facilitating the wall foundation arrangement of the low flow regulation wall and ensuring the intensity of the low flow regulation wall. In conclusion, the multi-baffle subsurface flow constructed wetland system lowers the construction cost of the baffled subsurface flow constructed wetland while increasing the intensity of the flow regulation walls of the baffled subsurface flow constructed wetland.

Description

technical field [0001] The invention relates to a constructed wetland system, in particular to a multiple fold subsurface flow constructed wetland system capable of allowing water to flow multiple times. Background technique [0002] Constructed wetlands, also known as artificial wetlands, are artificially built and supervised and controlled, using the triple synergy of physics, chemistry and biology in the ecosystem, through filtration, adsorption, precipitation, ion exchange, plant absorption and microbial decomposition. A system for efficient purification and treatment of sewage. General constructed wetland systems have the following characteristics: (1) low construction and operating costs; (2) easy maintenance; (3) effective and reliable wastewater treatment; (4) able to buffer the impact of hydraulic and pollution loads; (5) It can generate benefits, such as aquatic products, livestock production, paper-making raw materials, building materials, greening, habitats for ...

AI Technical Summary

Problems solved by technology

However, in the process of actual implementation, an insurmountable obstacle has been encountered, that is, the cost of construction is too high, and most units cannot bear the expensive construction cost. Therefore, the above-mentioned baffle type artificial Wetlands are few and far between and not widely used

After analysis, one of the main reasons for its high cost is the structural form of the baffle wall (flow regulating wall). , the lower part of part of the baffle wall is a suspended structure, which requires that a solid load-bearing beam and other structures must be built during construction. However, the constructed wetland generally occupies a large area. The construction difficulty and engineering volume of the load-bearing beam across the wetland are self-evident, and the amount of building materials required is also extremely considerable. Moreover, even so, due to the top-heavy situation, the strength of the baffle wall is still Difficult to guarantee

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