Plant half-naked planting method for improving purification efficiency of surface flow constructed wetlands substantially

Abstract

The invention discloses a plant half-naked planting method for improving the purification efficiency of surface flow constructed wetlands substantially. According to the plant half-naked planting method, a wetland bank with a water inlet pipe and a water outlet pipe is prepared; and the method also comprises the following steps of: 1) preparing a field, namely making the bottom of an implementation area to meet a seepage-proofing requirement, and preparing the field; 2) piling up a furrow, namely piling up mutually-parallel soil ridges along the direction of designed water flow in the smoothed implementation area, wherein the space between the soil ridges ranges from 0.3 to 1.0 meter, and the height of the tops of the soil ridges is 5 to 15 centimeters lower than a design water level; 3) selecting plants with shallow root systems as wetland plants; and (4) planting the wetland plants, namely planting the wetland plants side slopes on two sides of each soil ridge in a staggered mode, wherein the space among the wetland plants on the side slope on each side ranges from 0.6 to 2.0 meters. According to the plant half-naked planting method, the purification efficiency of the surface flow constructed wetlands can be improved substantially while various advantages of the conventional surface flow wetlands are reserved.

Description

technical field [0001] The invention relates to a method for greatly improving the purification efficiency of surface flow constructed wetlands, in particular, a micro-polluted water body treatment method that can greatly improve the purification efficiency of surface flow constructed wetlands only by changing the planting method of wetland plants, and belongs to the ecological restoration technology of water environment plants field. Background technique [0002] Today, with the increasing investment in environmental protection, the reality of the continuous deterioration of the drinking water source water environment in my country still exists, and this will also be the top priority of environmental protection for a long time to come. As we all know, the current tap water treatment process has a high treatment capacity for oxygen-consuming organic matter, ammonia nitrogen, etc., but it is powerless for trace environmental hormones below the ppb level, and recent studies ha...

AI Technical Summary

Problems solved by technology

In addition, many large-scale surface flow wetlands originally built, with the gradual increase of the water inflow load (partially exceeding the design load), the water quality of the effluent is unsustainable. Therefore, it is necessary to look for a technical transformation with low investment, quick results and easy operation. The program has also become a very urgent need

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