Sludge substrate ecological floating island and construction method

Abstract

The invention discloses a silt-matrical ecological floating island and a construction method thereof. The silt-matrical ecological floating island is constructed by the following materials: silt, light material ESP bubble grains and a curing agent prepared as per certain proportion. The steps thereof are: the lake silt, the bubble grains and the inorganic bond (curing agent, silicate, phosphate, borate or the compound thereof, such as cement or clay, and the like) and water are mixed and stirred; the mixture is filled in a mould; after solidification, dryness and molding, the mixture is taken out; the mixture is put in the polluted water body independently or after plants are planted; and the polluted water body is purified by the growth of microorganisms and plants on the floating island. Being inorganic materials, all the raw materials have stable chemical performance and no secondary pollution and is environmental-friendly, the co-action of plants and microorganisms is utilized for purifying water bodies, perfecting sights, and the effect is stable.

Description

technical field [0001] The invention relates to the field of water environment treatment and ecological restoration, and more specifically relates to a method for constructing a silt-based ecological floating island, which is suitable for water quality improvement in various eutrophic waters and urban landscape water bodies. Background technique [0002] Eutrophication of water bodies is a common problem in the current world water environment. Rapid economic growth has brought heavy loads to various natural water bodies. Under the combined effects of foreign substances and endogenous pollution, excess nutrients in water bodies have caused excessive phytoplankton reproduction, resulting in deterioration of water quality. The eutrophication of rivers and lakes is essentially a problem of ecosystem degradation, and new ways to control water pollution should be explored with ecological concepts, ideas, and methods. [0003] Artificial biological floating island technology is a ...

AI Technical Summary

Problems solved by technology

As we all know, these artificially synthesized organic polymer materials are not found in nature, are easily damaged, are difficult to degrade under normal conditions, are difficult to recycle, and have the risk of secondary pollution

Extensive use of these materials will inevitably cause serious solid waste pollution

In this way, water pollution is transformed into solid waste pollution, the so-called "pollution transfer". This method of environmental governance is uneconomical and does not meet the requirements of sustainable environmental development.

In addition, the current research on the use of inorganic materials to make floating islands is still rare. Although individual studies can achieve good results, there are still insurmountable disadvantages in terms of manufacturing methods, costs, and use and maintenance, so it has not yet formed large-scale applications.

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