Method for constructing inorganic artificial article floating island

A biological floating island, construction method technology, applied in sustainable biological treatment, chemical instruments and methods, biological water/sewage treatment, etc., can solve the problem of production method, cost, use and maintenance insurmountable, uneconomical way of environmental governance, It does not meet the problems of sustainable development of the environment, and achieves considerable economic and social benefits, improves the water landscape, and improves the water quality.

Inactive Publication Date: 2006-10-25
WUHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

example 1

[0033] 1. Preliminary preparation

[0034](1) On-site investigation: The test site is an artificial lake in Wuhan, which is now polluted by eutrophication;

[0035] (2) Material screening: use spherical ceramsite as raw material, put it into water, and select ceramsite that can float on the water surface;

[0036] (3) Mold making: make a cuboid box without a cover of 40cm * 30cm * 5cm size with wood, fix 12 polystyrene foam blocks (high 5cm, cross-sectional diameter 2.5cm) with nails at the bottom of the box to stay planting holes;

[0037] 2. Floating island unit production stage

[0038] (1) Quantitatively weigh the dry spherical ceramsite (61.8% by mass) and cement (38.2% by mass) screened out above;

[0039] (2) Mixing and stirring; mix the above-mentioned ceramsite and cement, and stir while adding water, until the cement is viscous, then stop adding water. Then continue to stir evenly, and the stirring time is about 20 minutes;

[0040] (3) Solidification molding: Fi...

example 2

[0046] 1. Preliminary preparation

[0047] (1) Field investigation: The test site is an artificial canal (600cm×300cm×150cm), and the water in the canal (depth 100cm) is a simulated eutrophic water body mixed with tap water and domestic sewage;

[0048] (2) Material screening: take vermiculite as raw material, drop it into water, and select vermiculite that can float on the water surface;

[0049] (3) mold making: a high 6cm, a cylindrical polystyrene foam block with a cross-sectional diameter of 2.5cm is fixed on a caliber of 10cm, and a bottom diameter of 5cm is at the bottom of a daily-use plastic convenient bowl;

[0050] 2. Floating island unit production stage

[0051] (1) Quantitatively weigh the dry vermiculite (mass percentage is 70%) and cement (mass percentage is 30%) of the above-mentioned screened out;

[0052] (2) Mixing and stirring: Mix the above-mentioned vermiculite and cement, and stir while adding water, until the cement becomes viscous, then stop adding ...

example 3

[0059] 1. Preliminary preparation

[0060] (1) On-site investigation: The test site is an artificial lake in Wuhan, which is now polluted by eutrophication;

[0061] (2) Material screening: take pumice as raw material, drop it into water, and select pumice that can float on the water surface;

[0062] (3) Mold making: make a cuboid box without a cover of 30cm * 20cm * 4cm size with wood, fix 6 polystyrene foam blocks (high 4cm, cross-sectional diameter 2.5cm) with nails at the bottom of the box to stay planting holes.

[0063] 2. Floating island unit production stage

[0064] (1) Quantitatively weigh the dried pumice (68% by mass) and clay cement compound (32% by mass) screened out above. Wherein the mass percent of clay in the clay-cement compound is 30%, and the cement is 70%;

[0065] (2) Mixing and stirring: Mix the above-mentioned pumice stone and clay cement compound, and stir while adding water, until the clay cement compound is viscous, then stop adding water. Then...

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Abstract

The invention discloses an inorganic man-made biological floating island, comprising the steps of: blending light inorganic material with inorganic adhesive (silicate, phosphate, borate or their combination, such as cement or clay, etc) and water; filling the mixture in a mould; curing, drying and moulding and then drawing it; placing in polluted water body, singly or after growing plants; purifying the polluted water body by growth of microbes and plants on the floating island. And the invention adopts inorganic materials, and has stable chemical property and friendly environment, and has no secondary pollution, and purifies the water body by coaction of plant and microbe membranes.

Description

technical field [0001] The invention relates to the field of water environment treatment and ecological restoration, in particular to a method for constructing an inorganic artificial biological 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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/32C02F3/10C04B14/04C04B22/16
CPCY02W10/10
Inventor 张维昊代培吴小刚方涛
Owner WUHAN UNIV
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