Bioreactor Perforated Pipe for Even Water Distribution
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Solution Overview
Problem
Existing bioreactors are inefficient in treating recirculating water from fish farming, particularly in removing ammonium and nitrogen compounds, as they often lead to uneven water distribution and reduced capacity in carrier medium utilization.
Innovation Solution
A bioreactor design featuring a perforated pipe within the compartment to guide and distribute water evenly, combined with aeration to promote nitrification and denitrification processes, ensuring optimal utilization of carrier medium and increased capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If water is supplied directly into the bioreactor compartment without guide means, then the structure is simple, but the water distribution is uneven and carrier medium utilization is reduced
Solution Approach 1:
The water supply system is segmented into multiple components: guide means at the inlet end, a perforated pipe extending through the compartment, and discharge means at the outlet end. This segmentation allows water to be distributed evenly through the perforations along the pipe length, improving carrier medium utilization while maintaining reasonable structural simplicity
Solution Approach 2:
The perforated pipe acts as an intermediary element between the water supply and the carrier medium. It distributes water evenly across the compartment through its perforations, ensuring optimal contact between water and carrier medium surfaces, thereby resolving the contradiction between structural simplicity and effective utilization
2Device complexity
If the bioreactor uses conventional water supply method, then the device complexity is low, but the ammonium and nitrogen removal capacity is reduced
Solution Approach 1:
The water supply system is divided into guide means, perforated pipe with multiple discharge points, and outlet discharge means. This segmentation creates multiple water-carrier medium interaction zones along the compartment length, enhancing overall purification capacity without excessive complexity
Solution Approach 2:
The perforated pipe introduces a longitudinal dimension to water distribution, extending water supply throughout the compartment length rather than concentrating it at one location. This dimensional expansion increases the effective treatment capacity for ammonium and nitrogen removal
3Manufacturing precision
If guide means are added to distribute water evenly, then the water distribution uniformity is improved, but the device complexity increases
Solution Approach 1:
The perforated pipe utilizes a porous structure with multiple holes along its length to distribute water evenly. This simple porous design achieves uniform water distribution without requiring complex mechanical components, balancing distribution precision with device simplicity
Solution Approach 2:
The guide means and perforated pipe system is designed to distribute water automatically based on the water flow itself, without requiring external control mechanisms. The structure self-regulates water distribution, achieving uniformity while minimizing added complexity
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 solution enhances the biological treatment of water by ensuring even distribution and increased capacity for ammonium and nitrogen removal, creating a healthier environment for fish and applicable to various water purification processes.
Implementation Method 1
means for agitating the water to be purified into a rotary motion inside the compartment
Implementation Method 2
The bacteria purifying the water form colonies on the surfaces of the carrier medium elements
Implementation Method 3
treating recirculating water from fish farming by means of nitrification and denitrification
Data Source
AI summary
The invention relates to a bioreactor having a tank with at least one bioreactor compartment containing a carrier medium, on the surface of which a biofilm may grow; wherein the first longitudinal end of the compartment comprises an inlet, and the second longitudinal end of the compartment comprises an outlet. The bioreactor comprises an aeration device for supplying reaction gas required for the purification process, and for agitating the carrier medium and the water to be purified into a rotary motion inside the compartment. A perforated pipe is arranged within the bioreactor compartment at a distance from the inner walls of the compartment. Inside the perforated pipe is a closing. Guide plates are arranged outside the perforated pipe, which guide water to be purified into the bioreactor space outside the perforated pipe.