Tower-Shaped Integrated Ecological Purification Device for Small Town Sewage
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Solution Overview
Problem
Traditional sewage treatment methods in small towns face challenges such as high construction and operating costs, vulnerability to pests and diseases, unstable water quality, and difficulty in finding suitable land, especially in mountainous areas with low terrain, leading to inefficient and costly ecological purification.
Innovation Solution
A tower-shaped integrated ecological purification device incorporating a water storage and filter pond, amphibious biological reaction system, and aquatic biological reaction system, utilizing a multi-stage plant-microbe-animal treatment process with alternating dry and wet oxidation-reduction environments, powered by gravity, solar, and biological energy, to efficiently remove pollutants from domestic sewage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional ecological treatment techniques (constructed wetlands, lagoons, underground infiltration systems) are used, then sewage treatment effectiveness is improved, but construction cost and land area requirements increase
Solution Approach 1:
The patent transitions from horizontal land use to vertical space utilization by designing a multi-layer tower structure with multiple reaction ponds stacked vertically. Sewage flows downward through gravity-driven connections between layers, enabling effective treatment in a compact footprint suitable for mountainous terrain with limited flat land.
Solution Approach 2:
The tower structure implements nested positioning where multiple reaction ponds are vertically stacked and connected in sequence. Each reaction pond layer is positioned within the overall tower structure, with sewage flowing from upper to lower layers through gravitational force, creating a compact nested arrangement that maximizes treatment efficiency per unit area.
2Use of energy by stationary object
If plant-based absorption methods are used for sewage treatment, then operating cost is reduced, but vulnerability to pests, diseases and climatic change increases
Solution Approach 1:
The patent combines multiple treatment mechanisms within each reaction pond: physical filtration through substrate layers, chemical processes including oxidation-reduction reactions, and biological degradation by microorganisms. This multi-mechanism approach reduces dependence on single plant-based absorption, thereby lowering vulnerability to pests and climatic variations while maintaining low operating costs.
Solution Approach 2:
The reaction ponds utilize composite substrate materials comprising multiple layers with different functions: gravel layers for physical filtration, sand layers for adsorption, and organic matter layers for microbial cultivation. This composite structure creates a robust treatment system that operates reliably across varying climatic conditions and is less susceptible to biological failures.
3Adaptability or versatility
If ecological purification systems are implemented in mountainous areas, then adaptability to terrain is improved, but construction complexity and cost increase
Solution Approach 1:
The tower structure is divided into multiple modular reaction pond layers that can be independently constructed and assembled. Each layer functions as a discrete treatment unit with standardized components, simplifying construction in difficult terrain. The modular design allows for staged implementation and easier maintenance, reducing overall construction complexity despite the challenging mountainous environment.
4Reliability
If multi-stage treatment processes are used, then pollutant removal efficiency is improved, but system complexity and maintenance difficulty increase
Solution Approach 1:
The system employs dynamic oxidation-reduction cycles within each reaction pond, where alternating wet and dry periods create varying redox conditions that enhance different degradation pathways. This dynamic operation maximizes pollutant removal efficiency for diverse contaminants while using simple gravitational flow control rather than complex mechanical systems, thereby limiting maintenance requirements.
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 system provides a low-cost, low-power, and efficient sewage treatment solution suitable for small towns, reducing maintenance costs and effectively addressing the challenges of pollutant removal and water quality stability, while being adaptable to mountainous terrain.
Implementation Method 1
The underground infiltration system mainly removes pollutants through physical adsorption, chemical precipitation, and biodegradation
Implementation Method 2
The underground infiltration system mainly removes pollutants through physical adsorption, chemical precipitation, and biodegradation
Implementation Method 3
The underground infiltration system mainly removes pollutants through physical adsorption, chemical precipitation, and biodegradation
Implementation Method 4
The constructed wetland system mainly uses the substrate, plant roots, and microorganisms to purify sewage through physical, chemical, and biological actions
Implementation Method 5
utilizing a multi-stage plant-microbe-animal treatment process with alternating dry and wet oxidation-reduction environments
Implementation Method 6
utilizing a multi-stage plant-microbe-animal treatment process with alternating dry and wet oxidation-reduction environments
Implementation Method 7
The lagoon uses solar energy as the initial energy to degrade, transform organic pollutants
Implementation Method 8
powered by gravity, solar, and biological energy
Data Source
AI summary
The present invention discloses a tower-shape integrated ecological purification device for domestic sewage in a small town. The device includes a water storage and filter pond, a medium reverse osmosis pond, an amphibious biological reaction system, and an aquatic biological reaction system. The amphibious biological reaction system and the aquatic biological reaction system are alternately connected from the top down. The amphibious biological reaction system and the aquatic biological reaction system form an alternating dry and wet, oxidation-reduction compound environment. Plant absorption, biological substrate transformation, aeration, and strengthening medium adsorption are combined to form a multi-stage plant-microbe-animal integrated ecological purification treatment process/device. The present invention achieves the efficient purification and acceptable discharge of domestic sewage in small towns.