Portable Ozone Water Purifier with TiO2 Catalyst
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Solution Overview
Problem
Existing portable water treatment solutions are inadequate for quickly purifying large quantities of water in emergency situations, as they require time-consuming separate steps like filtering and boiling, and chemical additives fail to remove organic substances effectively.
Innovation Solution
A portable advanced oxidation water treatment system using a battery-powered ozone generator and titanium dioxide catalyst, which introduces ozone into the water stream to create powerful oxidants for disinfection, allowing continuous purification without the need for frequent replenishment of active components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chemical treatment additives are used to purify water, then bacteria and parasites can be killed, but organic substances cannot be removed effectively
Solution Approach 1:
The patent employs ozone (O3) as a strong oxidant to generate hydroxyl radicals (•OH) through photolysis and decomposition. These radicals are extremely powerful oxidizing agents that can effectively degrade organic contaminants, pesticides, and other harmful substances in water, overcoming the limitation of conventional chemical additives that cannot remove organic substances effectively.
Solution Approach 2:
The system combines multiple purification mechanisms into a composite treatment process: ozone generation, catalytic oxidation using titanium dioxide (TiO2) or other semiconductor catalysts, UV irradiation, and physical filtration. This multi-component approach creates synergistic effects that simultaneously address disinfection and organic substance removal, achieving comprehensive water purification.
2Reliability
If separate steps of filtering and boiling are used to purify water, then sand and mud can be filtered and bacteria killed, but it requires time and appropriate facilities
Solution Approach 1:
The patent integrates multiple purification functions into a single portable device: mechanical filtration through activated carbon filters, ozone generation, catalytic oxidation, and UV treatment all occur within one unit. This consolidation eliminates the need for separate filtering and boiling steps, enabling comprehensive water purification in a single continuous process that can be performed anywhere without external facilities.
Solution Approach 2:
The portable water purifier is designed as a multi-functional device that can simultaneously or sequentially perform filtration, disinfection, oxidation, and purification of various types of water contaminants. The system adapts to different water sources and contamination levels, providing universal water treatment capability for emergency situations, outdoor activities, and areas without access to clean water infrastructure.
3Quantity of substance
If personnel transport quantities of safe water in canteens, then water availability is ensured, but the weight and bulk limit it to small quantities
Solution Approach 1:
The portable water purifier enables users to treat and purify water independently at the source, eliminating the need to carry pre-treated water. The device generates its own ozone and activates catalysts to purify water on-demand, allowing personnel to process large quantities of water in the field without the weight penalty of transporting equivalent amounts of purified water in canteens.
Solution Approach 2:
The system replaces the mechanical approach of physically transporting water with a chemical and physical treatment process that occurs in-place. Instead of moving water from clean to contaminated areas, the purifier treats water at its source using ozone generation, catalytic oxidation, and UV irradiation, dramatically reducing the weight and logistical burden of water transport.
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 system effectively purifies water by creating strong oxidants that break down organic contaminants, bacteria, and viruses, making it potable quickly and efficiently, even for large quantities, and can be powered by a solar panel or vehicle, making it suitable for mobile use.
Implementation Method 1
The mass transfer of ozone (O3) into solution is then available for contact with a semi-conductor catalyst titanium dioxide (TiO2) which is part of a substrate or matrix in the vessel. The combination of dissolved ozone and the catalyst creates an OH radical which is a short-lived, but extremely powerful oxidant
Implementation Method 2
contact with a semi-conductor catalyst titanium dioxide (TiO2) which is part of a substrate or matrix in the vessel. The combination of dissolved ozone and the catalyst creates an OH radical
Implementation Method 3
The combination of dissolved ozone and the catalyst creates an OH radical which is a short-lived, but extremely powerful oxidant
Data Source
AI summary
A portable, personal advanced-oxidation water treatment system based on ozone and a catalyst such as titanium dioxide that can cycle and purify water to make it potable by removing organic contaminants. The unit can be used for long periods of time without having to replenish the active portions. The unit can be carried in a backpack or in a vehicle. Fresh water is typically loaded into the unit, and the unit is cycled until the water is pure enough to drink. A battery is used to produce ozone and to cycle the water through a reaction vessel and can optionally be charged with a small solar panel The unit can also be powered directly from a vehicle.