Bionic Water Treatment System for Black Odorous Water
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Solution Overview
Problem
Conventional aeration technologies for treating black and odorous water bodies face challenges such as low oxygen dissolution and high energy consumption, and inefficient degradation of organic materials, leading to poor water quality.
Innovation Solution
A bionic treatment device mimicking the human digestion system, comprising a biomimetic intestine tubular purification system, microbial fuel cell, and inclined tube sedimentation tank, which uses enzymes, microorganisms, and solar power to degrade organic materials and convert chemical energy into electrical energy for efficient oxygenation and purification.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If conventional aeration devices are used to improve redox state, then oxygen restoration is achieved, but energy consumption is high and oxygen dissolution is low
Solution Approach 1:
The patent replaces conventional mechanical aeration devices with a bionic system that uses microbial fuel cells to generate electricity, which then powers nano-aeration devices. This substitution of mechanical systems with biological and electrochemical systems achieves the same oxygen restoration function with significantly lower energy consumption.
Solution Approach 2:
The patent changes the aeration scale from macro-aeration to nano-aeration, fundamentally altering the physical parameters of oxygen delivery. This parameter change enables high oxygen dissolution efficiency while reducing energy consumption, as nano-aeration devices can deliver oxygen more effectively at smaller scales.
2Temperature
If conventional aeration devices are used, then oxygen restoration is achieved, but oxygen dissolution remains low
Solution Approach 1:
The patent replaces conventional mechanical aeration with a bionic system combining microbial fuel cells and nano-aeration devices. This substitution enables superior oxygen dissolution performance, as nano-aeration devices can dissolve oxygen more effectively than traditional mechanical systems.
Solution Approach 2:
The patent transitions from macro-aeration to nano-aeration, changing the physical scale of oxygen delivery parameters. This parameter change fundamentally improves oxygen dissolution efficiency while maintaining low energy consumption, as nano-scale aeration devices can penetrate and oxygenate water more effectively.
3Productivity
If bottom sludge purification agents are added to degrade organic materials, then degradation effectiveness improves, but the system complexity increases
Solution Approach 1:
The patent employs a self-service approach by using microbial fuel cells to generate electricity from the degradation of organic materials in the sludge. The system uses the waste products of one process (organic degradation) to fuel another process (oxygen delivery via nano-aeration), eliminating the need for external energy input and simplifying overall system operation.
Solution Approach 2:
The patent merges multiple functions into an integrated bionic system: the microbial fuel cell generates electricity from organic degradation, which then powers the nano-aeration devices. This consolidation of functions (degradation + energy generation + oxygen delivery) into a single integrated system reduces operational complexity compared to separate treatment processes.
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 device effectively reduces chemical oxygen demand, ammonia nitrogen, and total phosphorus levels, achieving water quality meeting grade IV surface water standards with reduced energy consumption and operational complexity.
Implementation Method 1
the microbial fuel cell mainly imitates the digestion of large intestine to convert chemical energy to electrical energy
Implementation Method 2
aeration oxygenation is one of the most common technologies for improving the redox state of a water body
Implementation Method 3
the inclined tube sedimentation tank mainly imitates human excretion
Data Source
AI summary
The present application provides a method for treating a black and odorous water body comprising the following steps: pre-treating the black and odorous water body; passing the pre-treated water body through a biomimetic intestine tubular purification system which imitates a digestion of small intestine; passing the tubular purification system-treated water body into a microbial fuel cell which imitates a digestion of large intestine to treat the water body; and pumping the microbial fuel cell-treated water body into an upward flow inclined tube sedimentation tank to treat the water body.