Sludge substrate ecological floating island and construction method

A technology of ecological floating islands and construction methods, applied in chemical instruments and methods, sustainable biological treatment, biological water/sewage treatment, etc., can solve the problems of production methods, costs, use and maintenance that are difficult to overcome, not in line with environmental sustainable development, The method of treating the environment is not economical, and achieves considerable social benefits, considerable economic benefits, and the effect of improving the water body landscape

Inactive Publication Date: 2009-04-01
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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 ...

Method used

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  • Sludge substrate ecological floating island and construction method
  • Sludge substrate ecological floating island and construction method
  • Sludge substrate ecological floating island and construction method

Examples

Experimental program
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Effect test

Embodiment 1

[0048] A method for constructing a silt matrix ecological floating island, the steps of which are:

[0049] 1. Preliminary preparation:

[0050] (1) On-site investigation: The test site is an artificial landscape lake in Wuhan University, which has been polluted by eutrophication;

[0051] (2) Raw material preparation: use the sediments dredged out of a natural lake in Wuhan as raw materials, select silt that does not contain stones and impurities (such as plant rhizome residues), dehydrate and dry; light materials are selected ESP foam particles;

[0052] (3) Mold making: make a square box without a cover of the size of 100cm * 100cm * 5cm with wood, fix 36 polystyrene foam blocks (high 5cm, cross-sectional diameter 2.5cm) with nails at the bottom of the box to stay planting holes;

[0053] 2. Floating island unit production stage:

[0054] (1) Quantitatively weigh the dried silt, light material ESP foam particles, and high-sulfur HAS soil curing agent as described in the ...

Embodiment -2

[0062] A method for constructing a silt matrix ecological floating island, the steps of which are:

[0063] 1. Preliminary preparation:

[0064] (1) On-site investigation: The test site is a waste storage pond (1000cm×800cm×200cm) in a factory in Wuhan City. Tap water and domestic sewage are poured into the pond to simulate eutrophic water body, and the depth of the pond is 150cm;

[0065] (2) Material screening: use activated sludge cake from a domestic sewage treatment plant in Wuhan as raw material, dehydrate, deodorize, dry and pulverize; light materials use ESP foam particles;

[0066] (3) mold making: be fixed on the polystyrene foam block of diameter 2cm, height 5cm in the center of the plastic cover of diameter 10cm, along height 5cm;

[0067] 2. Floating island unit production stage:

[0068] (1) Quantitatively weigh activated sludge cake powder, ESP foam particles, high-sulfur type HAS soil curing agent as described in the raw material formula table for the product...

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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 ...

Claims

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Application Information

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IPC IPC(8): C02F3/10C02F3/32
CPCY02W10/10
Inventor 张维昊侯浩波周旻胡光济魏娜朱熙
Owner WUHAN UNIV
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