Electro-coagulation Reactor Cross-Sectional Area Inversion

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Solution Overview

Problem

Conventional electro-coagulation apparatuses face inefficiencies in contaminant removal due to large bubble formation during electro-coagulation reactions, which hampers electrical conduction and overall efficiency, and require complex maintenance and secondary treatments.

Innovation Solution

The electro-coagulation apparatus features a reactor with a smaller cross-sectional area and larger conduits, allowing for microbubble formation and reduced fouling, along with electrode supports to maintain plate positioning and facilitate easy replacement, and power source contacts for efficient voltage application.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If conventional horizontal type electro-coagulation apparatus uses a reactor with relatively large cross-sectional area, then wastewater treatment capacity is improved, but bubble formation increases causing reduced electrical conduction and efficiency

Engineering Contradiction:
Improvewastewater treatment capacityVSAvoidelectrical conduction efficiency
Core Design Contradiction:
ProductivityVSReliability

Solution Approach 1:

The patent changes the key parameter of cross-sectional area relationship between reactor and conduits. Specifically, the reactor cross-sectional area is designed to be smaller than that of the conduits (contrary to conventional design), which alters the flow dynamics and bubble formation characteristics, thereby maintaining electrical conduction efficiency while preserving treatment capacity

Inventive Principle:
Principle #35Parameter changes

Solution Approach 2:

The patent inverts the conventional design relationship by making the reactor cross-sectional area smaller than the conduit cross-sectional area. This inversion prevents bubble accumulation in the reactor, as the larger conduit area allows bubbles to escape more easily, thus maintaining electrical conduction efficiency without sacrificing productivity

Inventive Principle:
Principle #13The other way round (Inversion)

2Stability of the object's composition

If conventional electro-coagulation apparatus uses complex electrode positioning systems, then electrode stability is improved, but device complexity and maintenance difficulty increase

Engineering Contradiction:
Improveelectrode positioning stabilityVSAvoidelectrode support structure complexity
Core Design Contradiction:
Stability of the object's compositionVSDevice complexity

Solution Approach 1:

The electrode support structure is segmented into multiple independent support parts positioned at different locations within the reactor. Each support part independently holds one or more electrode plates, allowing for simplified individual components rather than a single complex positioning system. This segmentation maintains electrode stability while reducing overall device complexity and easing maintenance

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The electrode support parts serve multiple functions: they hold the electrode plates in stable positions, provide electrical insulation, and facilitate easy installation and removal of electrodes. This multi-functionality reduces the need for additional specialized components, thereby simplifying the overall device structure while maintaining electrode stability

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Manufacturing precision

If conventional apparatus design requires secondary treatment processes, then contaminant removal completeness is improved, but operational complexity and costs increase

Engineering Contradiction:
Improvecontaminant removal completenessVSAvoidsecondary treatment system complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The electro-coagulation apparatus is designed to achieve complete contaminant removal through optimized electro-coagulation parameters and reactor configuration alone, without requiring additional secondary treatment systems. The self-service principle is applied by making the primary treatment process sufficiently effective, thereby eliminating the need for complex secondary treatment infrastructure and reducing operational complexity and costs

Inventive Principle:
Principle #25Self-service

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

This design enhances contaminant removal efficiency, reduces maintenance complexity, and minimizes secondary treatment needs by promoting microbubble formation and efficient wastewater flow, leading to improved electro-coagulation performance and reduced operational costs.

Implementation Method 1

When electrodes are positioned in wastewater and electricity is supplied, a soluble electrode of an anode is oxidized by an electrochemical reaction, and metal cations are generated

Methodology Applied
Scientific EffectElectrochemical reaction: Electrolysis

Implementation Method 2

The metal cations are convected and diffused by an electric field and a concentration gradient, and are electrically coupled to contaminants and are neutralized

Methodology Applied
Scientific EffectElectrophoresis: Electrophoresis

Implementation Method 3

The metal cations are convected and diffused by an electric field and a concentration gradient, and are electrically coupled to contaminants and are neutralized, thereby forming flocs

Methodology Applied
Scientific EffectCoagulation: Coagulation

Implementation Method 4

The electro-coagulation apparatus features a reactor with a smaller cross-sectional area and larger conduits, allowing for microbubble formation and reduced fouling, along with electrode supports to maintain plate positioning and facilitate easy replacement

Methodology Applied
Scientific EffectFluid flow:

Data Source

PatentUS20240327256A1Electro-coagulation apparatus
Publication Date: 2024.10.03 SK INNOVATION CO LTD
  • US20240327256A1 patent drawing

AI summary

Proposed is an electro-coagulation apparatus. The electro-coagulation apparatus includes a reactor having an internal space defined by a top surface, a bottom surface, and a side surface of the reactor; a plurality of electrode plates disposed spaced apart from each other inside the internal space of the reactor, and a pair of first conduits respectively connected to a front end and a rear end of the reactor. Furthermore, a cross-sectional area of the reactor is smaller than a cross-sectional area of each of the first conduits.