Adjustable Water Softener Closed-Pressure Aeration
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Solution Overview
Problem
Conventional water treatment systems for removing hydrogen sulfide (H2S) and ferrous iron from water are inefficient, require frequent maintenance, and have high operating costs, making them unsuitable for compact and cost-effective solutions, especially in residential settings.
Innovation Solution
A compact water conditioning system that uses a cation exchange media in a water softening tank with a programmable control valve and an air aspiration valve to produce aerated, pressurized water, which enhances the removal of dissolved hydrogen sulfide and ferrous iron through turbulent mixing and oxidation, allowing for efficient regeneration of the resin and reduced maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If conventional water treatment systems are used to remove hydrogen sulfide and ferrous iron, then water purification is achieved, but the systems require frequent maintenance and have high operating costs
Solution Approach 1:
The patent combines the aeration function and water softening function into a single integrated system. The aeration tank is positioned above the softener tank, and aerated water flows directly into the softener, eliminating the need for separate treatment systems and reducing maintenance requirements while maintaining effective removal of hydrogen sulfide and ferrous iron
Solution Approach 2:
The system performs aeration as a preliminary step before water enters the softener. By pre-aerating the water to oxidize hydrogen sulfide and ferrous iron, the subsequent softening process becomes more effective and requires less frequent maintenance, as the preliminary oxidation reduces the load on the ion exchange resin
2Reliability
If conventional water treatment systems are used, then water softening is achieved, but the systems are bulky in size
Solution Approach 1:
The patent implements a nested configuration where the aeration tank is positioned directly above the softener tank, with the outlet of the aeration tank feeding directly into the inlet of the softener tank. This vertical stacking arrangement minimizes the horizontal footprint and overall system volume while maintaining both aeration and softening functions
Solution Approach 2:
By merging the aeration and softening systems into a single integrated unit with shared plumbing and control mechanisms, the overall system volume is reduced compared to having separate standalone systems for each function
3Reliability
If conventional water softeners are used, then water softening is achieved, but the regeneration phase is time-consuming
Solution Approach 1:
The system performs preliminary aeration that oxidizes hydrogen sulfide and ferrous iron before water enters the softener. This pre-treatment prevents these contaminants from interfering with the ion exchange process, allowing the softener to operate more efficiently and regenerate more quickly without being slowed down by contaminant removal requirements
Solution Approach 2:
The system changes the oxidation state of iron from ferrous (Fe2+) to ferric (Fe3+) through aeration, and converts hydrogen sulfide to elemental sulfur. These parameter changes in contaminant form make them less interfering with the softening process, enabling faster regeneration cycles
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 removes dissolved hydrogen sulfide and ferrous iron, providing odorless and tasteless water while reducing the frequency of resin rejuvenation and water softener backwashes, leading to lower operating costs and improved efficiency compared to traditional systems.
Implementation Method 1
produce aerated, pressurized water, which enhances the removal of dissolved hydrogen sulfide and ferrous iron through turbulent mixing
Implementation Method 2
uses a cation exchange media in a water softening tank to produce aerated, pressurized water, which enhances the removal of dissolved hydrogen sulfide and ferrous iron
Implementation Method 3
enhances the removal of dissolved hydrogen sulfide and ferrous iron through turbulent mixing and oxidation
Data Source
AI summary
A water conditioning system that both softens and improves the smell of water by removing dissolved ferrous iron and hydrogen sulfide from the water includes: a water softening tank, a cation exchange media situated in the water softening tank, a brine tank, a programmable control valve which regulates flow through the system and the periodic rejuvenation of the cation exchange media using flow from the brine tank, a valve that assists in providing a flow of aerated, pressurized water to the system, and an adapter with a bottom portion and a flow control valve that control the volume of the gaseous pocket that is created in the top portion of the water softening tank.