Multifunctional ecological tree pool

Abstract

The invention provides a multifunctional ecological tree pool. The pool comprises a planting area, a purification area and a pretreatment area which are sequentially arranged from inside to outside, the pretreatment area comprises a rainwater grate, a sewage interception hanging basket and a mud settling area from top to bottom, and the purification area sequentially comprises a cobblestone layerinternally provided with a first water outlet, a water distribution layer, a gravel layer, an aluminum sludge filler layer and an anaerobic reaction layer from top to bottom; a planting soil layer, afirst-stage nutrient supply device and a second-stage nutrient supply device are sequentially arranged in the planting area from top to bottom; and the first-stage nutrient supply device comprises a first box body, a first water absorption drainage rod and a permeation drainage pipe, the second-stage nutrient supply device comprises a second box body and a second water absorption drainage rod, a second water outlet is formed at the top of the second box body, the permeation drainage pipe is communicated with the first box body from the bottom of the gravel layer, and a water permeation groovecommunicated with the anaerobic reaction layer is formed in the side wall of the second box body. The multifunctional ecological tree pool is convenient to maintain, does not need manual irrigation, can realize enhanced nitrogen and phosphorus removal and nutrient supply for plants, and can be used for municipal roads, parks and residential areas.

Description

technical field [0001] The invention relates to the technical field of sponge city construction, in particular to a multifunctional ecological tree pool. Background technique [0002] Based on the rapid development of urbanization, the increase of impermeable roads in cities makes urban waterlogging and excessive flood peak runoff more likely to occur, which in turn leads to a large amount of pollutants entering the municipal pipe network and increasing the load of the municipal pipe network. The construction of a sponge city is a complex and long-term process, following the principles of ecological priority, coordinating the systematic nature of natural precipitation, surface water and groundwater, coordinating water supply, drainage and other water recycling links, and maximizing the accumulation of rainwater in urban areas , infiltration and purification, and promote the utilization of rainwater resources and the protection of the ecological environment. [0003] Ecologi...

AI Technical Summary

Problems solved by technology

[0003] Ecological tree pools are an important part of the construction of sponge cities. In the application of ecological tree pools in the prior art, most of the trees are irrigated manually. On the one hand, the utilization rate of water resources is not high, time-consuming and laborious, and it is easy to generate water accumulation Causes plant rotten roots, breeds mosquitoes, and reduces the user experience of the public; trees grow without sources of nutrients, and trees need to be "infused" manually to increase the probability of plant survival

In addition, the main function of the existing ecological tree pool technology is still to regulate and store rainwater, and cannot strengthen the removal of nitrogen, phosphorus and organic pollutants in rainwater

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