Electroflotation Water Purifier With Paramagnetic Floc Recovery

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Solution Overview

Problem

Existing water purification methods using electroflotation face challenges in achieving economical purification with minimal electrode wear and energy consumption, while also managing the disposal of floc material generated as a byproduct.

Innovation Solution

The use of a water purifier with a cathode and anode electrode pair, where the anode is made of a material that wears down during electrolysis and the cathode is non-wearing, and the application of a voltage difference between them, along with the addition of a small amount of additive to enhance floc formation, allowing for efficient purification with reduced energy consumption and utilizing the floc material as a soil conditioner.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If electroflotation is used for water purification, then water purification is achieved, but electrode wear and electricity consumption increase

Engineering Contradiction:
Improvewater purificationVSAvoidelectricity consumption
Core Design Contradiction:
ReliabilityVSUse of energy by moving object

Solution Approach 1:

A magnetic field is introduced as an intermediary to enhance the separation of flocs from purified water. The magnetic field causes paramagnetic flocs to migrate toward the magnetic electrode, accelerating sedimentation and allowing for reduced electricity consumption while maintaining purification effectiveness

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention changes the physical-chemical parameters of the system by introducing magnetic properties to the floc material through paramagnetic substances. This allows the flocs to respond to magnetic fields, creating a new separation mechanism that reduces dependency on high electricity consumption for flotation

Inventive Principle:
Principle #35Parameter changes

2Reliability

If electroflotation is used for water purification, then water purification is achieved, but anode wear increases

Engineering Contradiction:
Improvewater purificationVSAvoidanode wear
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The magnetic field acts as an intermediary that enhances floc separation without requiring increased anode dissolution. The magnetic force on paramagnetic flocs provides an additional separation mechanism that reduces reliance on anode erosion for purification

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The invention converts the paramagnetic properties of floc material into a beneficial force for separation. By introducing paramagnetic substances, the flocs become responsive to magnetic fields, turning a passive byproduct into an active component that aids purification while reducing anode wear

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

3Productivity

If additives are added to enhance floc formation, then purification efficiency increases, but additive costs increase

Engineering Contradiction:
Improvepurification efficiencyVSAvoidadditive costs
Core Design Contradiction:
ProductivityVSQuantity of substance

Solution Approach 1:

The invention replaces chemical additives with a magnetic field-based separation mechanism. Instead of relying on chemical flocculants to aggregate particles, the system uses magnetic forces to attract paramagnetic flocs to the magnetic electrode, substituting chemical intervention with physical field action

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The invention changes the magnetic properties of the floc material by introducing paramagnetic substances, transforming the flocs from non-magnetic to magnetic-responsive. This parameter change enables magnetic separation without requiring large quantities of chemical additives

Inventive Principle:
Principle #35Parameter changes

4Reliability

If floc material is disposed of as waste, then purification is complete, but disposal costs increase

Engineering Contradiction:
Improvepurification completionVSAvoiddisposal costs
Core Design Contradiction:
ReliabilityVSLoss of substance

Solution Approach 1:

The invention converts the waste floc material into a beneficial product by utilizing its paramagnetic properties for enhanced separation. The flocs, which would normally be discarded, are now attracted to the magnetic electrode where they can be easily collected and potentially reused, transforming waste into a valuable byproduct

Inventive Principle:
Principle #22Blessing in disguise (Convert harm into benefit)

Solution Approach 2:

Instead of simply discarding floc material, the invention recovers it through magnetic attraction to the magnetic electrode. The paramagnetic flocs are concentrated at the electrode surface where they can be easily removed and potentially utilized, implementing a recovery system that eliminates disposal costs

Inventive Principle:
Principle #34Discarding and recovering

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 approach achieves efficient water purification with lower energy consumption and reduced anode wear, while the floc material generated can be reused as a soil conditioner, thereby decreasing overall costs and increasing the economic viability of the process.

Implementation Method 1

Due to said electric current, electrolytic reactions take place in the cell, as a result of which ions are dissolved in the electrolyte from the anode

Methodology Applied
Scientific EffectElectrolysis: Electrolysis

Implementation Method 2

According to Archimedes' principle, hydrogen gas naturally goes up in the cell carrying precipitated impurities along with it to the surface

Methodology Applied
Scientific EffectArchimedes' principle (buoyancy): Archimedes' Principle (Buoyancy)

Implementation Method 3

separation of the floc material from the purified water is enhanced by means of a magnetic field

Methodology Applied
Scientific EffectMagnetic field effect: Magnetic Field

Data Source

PatentUS11420886B2Method for purifying water
Publication Date: 2022.08.23 KLEMOLA MARTTI
  • US11420886B2 patent drawing
  • US11420886B2 patent drawing
  • US11420886B2 patent drawing

AI summary

A method for purification of water with a water purifier. The water purifier includes an anode and a cathode as electrodes in such a way that a gap remains between the anode and the cathode. In the method, an electric field is generated between the anode and the cathode, water for purification is conveyed to the gap and an additive enhancing floc formation is introduced to water for purification or to purified water in an amount of less than 50 g and at least 1 g, measured as dry matter, per each cubic metre of water for purification. Floc material manufactured with the method, when water for purification is municipal wastewater. The use of the floc material produced in this way as a soil conditioner or for manufacturing a soil conditioner.