Mesoporous Aluminosilicate Ecological Dam for Ammonia and Phosphorus Removal
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Traditional ecological dams are inefficient in removing highly dissolved and micro-sized pollutants like ammonia-nitrogen and total phosphorus, prone to clogging, and have high construction and maintenance costs, limiting their effectiveness and scalability.
Innovation Solution
An ecological dam using a modified aluminosilicate inorganic mesoporous material with a specific surface area of 30-40 m2/g, incorporating an ecological adsorption module with floating and sinking balls filled with modified aluminosilicate and nitrifying bacteria, and a fixing module with vertical piles for rapid pollutant adsorption and long-term purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional ecological dams use gravel and rubble materials, then construction is simple, but they are hard to construct properly and hinder navigation
Solution Approach 1:
The ecological dam is divided into modular components including ecological adsorption balls, fixing modules with vertical piles, and horizontal support structures. These segmented modules can be assembled in a structured manner that maintains water flow channels, avoiding navigation obstruction while simplifying construction through standardized components
Solution Approach 2:
Different regions of the dam structure have specialized functions: floating balls with adsorption materials are positioned in water flow paths for pollutant treatment, while vertical fixing piles are anchored in riverbeds for structural stability. This localized functional assignment optimizes both construction efficiency and navigational compatibility
2Ease of manufacture
If traditional ecological dams use simple materials, then construction cost is low, but they are prone to pollutant siltation and permeable material clogging requiring regular maintenance
Solution Approach 1:
The ecological adsorption balls incorporate modified aluminosilicate inorganic mesoporous materials with controlled pore structures. These porous materials provide high surface area for pollutant adsorption while maintaining permeability that prevents clogging, allowing water flow continuity and reducing maintenance requirements
Solution Approach 2:
The adsorption balls use composite structures combining organic polymers with inorganic mesoporous materials, creating a hierarchical material system that resists fouling while maintaining adsorption capacity. This composite approach enhances reliability by preventing the clogging issues associated with simple materials
3Ease of manufacture
If traditional ecological dams use basic adsorption materials, then construction cost is low, but removal effect on highly dissolved and micro-sized pollutants like ammonia-nitrogen is limited
Solution Approach 1:
The aluminosilicate materials are modified through chemical treatment to alter surface properties, increasing specific surface area and creating active sites for ammonia-nitrogen and phosphorus adsorption. This parameter modification enables effective removal of dissolved pollutants while maintaining cost-effectiveness
Solution Approach 2:
The mesoporous structure of the modified aluminosilicate provides extensive internal surface area accessible to dissolved pollutants. The controlled pore size distribution enables adsorption of micro-sized and dissolved substances like ammonia-nitrogen, significantly improving removal efficiency compared to conventional materials
4Reliability
If ecological dams with purification functions use enhanced adsorption capacity, then water quality improvement is better, but service time is short and construction cost increases
Solution Approach 1:
The ecological adsorption balls are designed to maintain long-term purification capacity through self-regenerating mechanisms. The modified aluminosilicate materials provide sustained adsorption activity without requiring frequent replacement, enabling service life exceeding one year while maintaining high water quality improvement effectiveness
Solution Approach 2:
The composite structure of organic polymer matrices with inorganic mesoporous adsorbents creates a stable, durable material system. This composite design enhances both the service life and purification performance, allowing the dam to maintain effective water quality improvement over extended operational periods
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The dam achieves over 90% removal of ammonia-nitrogen and total phosphorus, with a service life of over one year, low maintenance, and energy-efficient operation without secondary pollution, suitable for rivers with low flow velocity.
Implementation Method 1
the ecological adsorption module includes multiple ecological adsorption ball components prepared from the modified aluminosilicate inorganic mesoporous material, and the ecological adsorption module is configured to adsorb pollutants in the river channel to be treated
Implementation Method 2
multiple slow-release nitrifying bacteria solid balls are filled in the pearl cotton layer
Data Source
AI summary
An ecological dam for nitrogen fixation and phosphorus reduction based on a modified aluminosilicate inorganic mesoporous material includes an ecological adsorption module and a fixing module. The ecological adsorption module includes multiple ecological adsorption ball components prepared from the modified aluminosilicate inorganic mesoporous material, and the ecological adsorption module is configured to adsorb pollutants in the river channel. The fixing module is configured to fix the ecological adsorption module into the river channel to be treated. Each ecological adsorption ball component includes floating balls, and the modified aluminosilicate inorganic mesoporous material is in the floating balls. In water with dissolved oxygen over 2 mg/L, the ecological adsorption ball components can rapidly adsorb ammonia-nitrogen and total phosphorus and can quickly form a large aerobic microbial membrane for long-term purification and degradation of pollutants, enhancing a self-purification ability of the water under low-release nitrifying bacteria solid balls.