Movable ecological media box for restoration of eutrophic natural water body

Abstract

The invention discloses a movable ecological medium box for repairing eutrophic natural water body. The medium box includes a box body and a floating ball connected with the box body. The box body is divided from top to bottom by a movable isolation plate. A packing layer, a second packing layer, a third packing layer and a fourth packing layer; the fourth packing layer is filled with a planting matrix, and submerged plants are planted in the planting matrix, and the submerged The plants pass through the third to the first packing layer from bottom to top, and extend beyond the upper surface of the box through the planting pipe; the first to the third packing layers are filled with matrix fillers of different particle sizes, and the The bottom of the box body is connected with some bamboo balls. It has the advantages of multi-level and multi-step adsorption of pollutants, recyclable use, convenient management, certain landscape, and environmental friendliness.

Description

technical field [0001] The invention relates to the fields of water body ecological restoration and landscape improvement, in particular to a movable ecological medium box for restoring eutrophic natural water bodies. Background technique [0002] With the continuous development of global urbanization, the eutrophication of river water has become one of the environmental problems that has attracted much attention from the world. It seriously restricts the sustainable development of the national economy, destroys the beautiful image of the city, and threatens ecological security and environmental protection. human health. [0003] Conventional river treatment technologies include physical, chemical and biological methods. The physical method includes technologies such as dredging, diversion and aeration, which are characterized by obvious removal of pollutants in the water body, but the engineering volume is large, the operation cost is high, the economic benefit is poor, an...

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Problems solved by technology

[0004] At present, among the existing technologies, such as Tong Ningjun's (CN206692419U) utility model design involves a comprehensive management technology: an ecological medium box, which includes a plant planting area where aquatic plants can be planted in the upper layer and ecological matrix particles that can be filled in the lower layer In the medium filling area, the box is distributed with a number of permeable holes, and is fixed on the revetment with guide rail nuts; however, the medium box is directly fixed on the bank, resulting in limited treatment range, and the plants are directly rooted in the adsorption matrix phosphorus removal filler. The high alkalinity of the adsorption matrix has a certain impact on the growth of plants, and the sorting and recycling of the matrix are not considered, which leads to waste and cost issues; The matrix used to provide nutrients to aquatic plants in the body must also be located in the upper part, and it is easy to cause loss of matrix and instability of aquatic plants under the surface flow and erosion of the water body, thereby reducing the use effect of aquatic plants in the entire box; in addition , the filler below the media box is only phosphorus removal filler, and the classification and gradation effect of the filler are not considered, so the removal of pollutants is single, and the effect of removing pollutants is not ideal

[0005] Another example is Wang Zirong (CN105399220A) who designed a suspended ecological restoration board and its multi-media artificial sinking bed, which mainly uses the combination of multi-media adsorption, microbial degradation and submerged plants to solve the problem of existing slope protection ecological bags. The growing area is limited and it is difficult for plants to take root on the pool wall and the technical problems that affect the growth and reproduction of submerged plants

The suspended ecological restoration board invented by him has a thickness of 1cm and is suspended on a floating body. It can only purify a single shallow water body, and once the water flow velocity is high (such as a lake reservoir) or encounters heavy rain, the restoration board is easily washed away by the flow of water. And destroy and enter the bottom of the water; the degradable starch granules used will undoubtedly increase the COD content in the water body; at the same time, the invention does not take into account the recycling and reuse of the ecological restoration board and its internal matrix materials, which greatly increases the treatment cost; more important The most important thing is that it uses zeolite, activated carbon and degradable starch particles together. Starch will block the pores of zeolite and activated carbon, which greatly reduces the treatment efficiency, and cannot effectively degrade and filter different pollutants in layers. At the same time, this setting does not Facilitate sorting and reuse of fillers

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