Water Purifier Filter Reducing Binder Particle Size
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Solution Overview
Problem
Conventional water purifiers face challenges in simultaneously achieving high flow rates and effective removal of a wide range of heavy metals, including selenium, chromium, manganese, and zinc, due to high binder particle sizes and insufficient mixing ratios of activated carbon and heavy metal removal materials, which result in reduced water permeability and incomplete heavy metal removal.
Innovation Solution
A water purifier filter with a reduced binder particle size and content, uniformly dispersed to increase the specific surface area of heavy metal removal materials, comprising a mixture of activated carbon, iron hydroxide, and titanium oxide, allowing for efficient removal of at least nine kinds of heavy metals while maintaining a high flow rate and effective purified water amount.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If a large particle size binder is used in the filter, then the binder can be easily mixed and applied, but flow resistance is generated and water permeability is lowered
Solution Approach 1:
The patent changes the particle size parameter of the binder from conventional large sizes to specifically small sizes (average particle size of 0.1 to 10 μm, preferably 0.5 to 5 μm). This parameter change allows the binder to uniformly fill spaces between activated carbon particles without creating flow resistance, thereby improving water permeability while maintaining ease of application through the formulation approach.
2Stability of the object's composition
If a large mixed amount of binder is used in the filter, then the binder can sufficiently bind the filter materials, but the binder occupies a large proportion and water permeability is lowered
Solution Approach 1:
The patent changes the quantity parameter of the binder, reducing its mixed amount to specifically 1 to 50 parts by weight per 100 parts of activated carbon (preferably 5 to 30 parts). This optimized quantity, combined with the small particle size, allows sufficient binding strength while minimizing the proportion of binder in the filter, thereby maintaining high water permeability.
Solution Approach 2:
The patent utilizes the porous structure created by the small particle size binder that uniformly fills spaces between activated carbon particles. This porous arrangement allows water to flow through efficiently while the binder maintains binding function, achieving both good binding strength and high water permeability with reduced binder content.
3Device complexity
If the mixing ratio of activated carbon and heavy metal removing material is insufficient, then the filter structure is simple, but heavy metal removal performance is incomplete
Solution Approach 1:
The patent creates a composite filter material by mixing activated carbon with specific heavy metal removing materials (such as iron hydroxide, aluminum hydroxide, calcium hydroxide, magnesium hydroxide, zinc oxide, or titanium oxide) in optimized ratios of 10 to 50 parts heavy metal removing material per 100 parts activated carbon. This composite structure enhances heavy metal removal performance for multiple types of heavy metals while maintaining relatively simple filter composition and structure.
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 effectively removes a broad spectrum of heavy metals, including lead, mercury, arsenic, iron, aluminum, copper, cadmium, and others, while ensuring a high flow rate and treatment capacity, and can be easily integrated into existing water purifiers without altering their structure or space requirements.
Implementation Method 1
The activated carbon filter may adsorb and remove contaminants, residual chlorine, volatile organic compounds, or odor-causing factors with small particles
Implementation Method 2
a carbon block that includes a mixture of: activated carbon, a binder, iron hydroxide, and titanium oxide
Data Source
AI summary
A filter for a water purifier includes a filter housing that defines an inlet and an outlet, and a filter module disposed inside the filter housing and configured to purify water received through the inlet and supply purified water to the outlet. The filter module includes a carbon block that includes a mixture of: activated carbon having a weight corresponding to 40 to 50% of a weight of the mixture, a binder having a weight corresponding to 5 to 15% of the weight of the mixture, iron hydroxide having a weight corresponding to 10 to 20% of the weight of the mixture, and titanium oxide having a weight corresponding to 30 to 40% of the weight of the mixture.