An ecosystem to inhibit algal blooms in hard-bottomed lakes

By setting up floating islands in lakes with hard bottoms and planting emergent plants, quaternary ammonium salt chitosan-modified rope-like aquatic plants, and microbial-degradable slow-release particles, the problem of algal blooms caused by excessive nitrogen and phosphorus nutrients and weak self-purification capacity in lakes with hard bottoms has been solved. This has achieved immediate and long-term algal suppression effects, improving water quality and ecosystem diversity.

CN224513307UActive Publication Date: 2026-07-17YUANLANGCHAO ECOLOGICAL CONSTR (HUBEI) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
YUANLANGCHAO ECOLOGICAL CONSTR (HUBEI) CO LTD
Filing Date
2025-07-16
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

The existing technology cannot effectively solve the specific problem of how to solve or has failed to effectively solve the problem of algal blooms caused by excessive nitrogen and phosphorus nutrient input and weak water self-purification capacity in lakes with hard bottoms, which leads to water hypoxia, microcystin release by cyanobacteria, threaten drinking water safety and cause economic losses to fisheries.

Method used

A floating island system is used, in which emergent plants are planted and quaternary ammonium salt chitosan-modified rope-shaped artificial aquatic plants are placed at the bottom of the floating islands. The hollow boxes are filled with microbial degradation slow-release particles. The flocculation and microbial degradation effects of quaternary ammonium salt chitosan are used to inhibit algae growth, while the emergent plants absorb nutrients to improve water purification.

Benefits of technology

It achieves immediate and long-lasting algae suppression, improves water transparency and self-purification capacity, enhances biodiversity, and has comprehensive advantages such as easy maintenance, low cost, and eco-friendliness, while also possessing landscape aesthetic value.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an ecological system for inhibiting algae outbreak of hard bottom lake, a plurality of pots of emergent plants are planted in the planting area on the floating island, a plurality of quaternary ammonium salt chitosan modified rope-shaped artificial water grasses are arranged around the planting area at the bottom of the floating island, a plurality of hollow boxes are arranged in the area between the quaternary ammonium salt chitosan modified rope-shaped artificial water grasses and the planting area at the bottom of the floating island, each hollow box is filled with microbial degradation type slow-release particles, and the quaternary ammonium salt chitosan is distributed in the microbial degradation type slow-release particles. Advantageous effects are as follows: the quaternary ammonium salt chitosan modified rope-shaped artificial water grass can quickly flocculate Microcystis aeruginosa in water, has instant algae inhibition effect, the microorganism gradually degrades the microbial degradation type slow-release particles to continuously release the quaternary ammonium salt chitosan, realizes long-acting inhibition of algae in water, the bio-degradation of the microbial degradation type slow-release particles by the biofilm microorganism on the quaternary ammonium salt chitosan modified rope-shaped artificial water grass can accelerate, the quaternary ammonium salt chitosan is continuously released, and the purpose of long-term inhibition of algae in water is achieved.
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Claims

1. An ecosystem for inhibiting algal blooms in a hard-bottomed lake, the ecosystem comprising, include: A floating island (1) is planted with multiple emergent plants (2) in the planting area in the middle of the floating island (1). Multiple quaternary ammonium salt chitosan modified rope-shaped artificial aquatic plants (3) are arranged around the planting area at the bottom of the floating island (1). Multiple hollow boxes (4) are arranged at the bottom of the floating island (1) in the area between the quaternary ammonium salt chitosan modified rope-shaped artificial aquatic plants (3) and the planting area. Each hollow box (4) is filled with microbial degradable slow-release particles, and quaternary ammonium salt chitosan is distributed in the microbial degradable slow-release particles.

2. The ecosystem for inhibiting algal blooms in a hardpan lake of claim 1, wherein, The bottom of the floating island (1) is arranged with quaternary ammonium salt chitosan modified rope-shaped artificial aquatic plants (3) at intervals of 20cm to 100cm, and the length of the quaternary ammonium salt chitosan modified rope-shaped artificial aquatic plants (3) is 30cm to 100cm.

3. An ecosystem for inhibiting algal blooms in a hardpan lake according to claim 1 or 2, characterized in that, The quaternary ammonium salt chitosan modified rope-shaped artificial aquatic plant (3) is fixed to the bottom of the floating island (1) by rivets (6).

4. The ecosystem of claim 1, wherein, The bottom of the floating island (1) is provided with an annular track groove (5) around the planting area between the quaternary ammonium salt chitosan modified rope-shaped artificial aquatic plant (3) and the planting area, and the hollow box (4) is slidably placed on the annular track groove (5).

5. An ecosystem for inhibiting algal blooms in a hardpan lake according to claim 4, wherein, The length, width and height of the hollow box (4) are all in the range of 3cm to 6cm.

6. The ecosystem of claim 4, wherein, The distance between two adjacent hollow boxes (4) in the annular track groove (5) is 20cm to 80cm.

7. The ecosystem of claim 1, wherein, Multiple pots of emergent plants (2) are fixed in the planting area of ​​the floating island (1) through the planting holes (710) on the floating plate (7).

8. The ecosystem of claim 1, wherein, On the floating island (1), 8 to 20 pots of emergent plants (2) are planted in the planting area.

9. An ecosystem for suppressing algal blooms in lakes with hard bottoms according to claim 1, characterized in that, The emergent plants (2) are sweet flag or water onion.

10. An ecosystem for suppressing algal blooms in lakes with hard bottoms according to claim 1, characterized in that, The length of the floating island (1) is 3m to 6m and the width is 1m to 2m.