Sphagnum Moss Adsorbs Disinfection By-Products in Pool Water
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Solution Overview
Problem
Disinfection by-products (DBPs) such as trihalomethanes and haloacetic acids, formed by the reaction of chlorine disinfectants with organic matter in pool systems, pose health and odor issues due to their toxicity and persistence in water and air.
Innovation Solution
Contacting water treated with disinfectants with non-decomposed sphagnum moss, which reduces the levels of DBPs by adsorbing and breaking down toxic compounds like chloroform, bromoform, and dichlorobromomethane, either in the water or air, using a mesh-enclosed moss system placed in a contact chamber or filter cartridge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If chlorine disinfectants are used to treat pool water, then disinfection effectiveness is improved, but disinfection by-products are generated causing health and odor issues
Solution Approach 1:
Moss is introduced as an intermediary substance between the disinfected water and the environment. The moss absorbs disinfection by-products from the water through its cellular structure and metabolic processes, acting as a mediator that removes harmful compounds without interfering with the primary disinfection function of chlorine
Solution Approach 2:
The moss system converts the harmful disinfection by-products into beneficial outcomes by absorbing toxic compounds like trihalomethanes and haloacetic acids, transforming the polluted water into cleaner water that is safer for swimmers while maintaining the disinfection effectiveness
2Object-generated harmful factors
If moss is added to reduce disinfection by-products, then DBP levels are reduced, but device complexity increases
Solution Approach 1:
The moss system serves multiple functions simultaneously: it absorbs disinfection by-products from water, provides a habitat for beneficial microorganisms that further degrade contaminants, and can be integrated into existing pool filtration systems without requiring complete system replacement, thereby reducing overall device complexity through multi-functionality
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 method effectively reduces DBP levels by 20-80% in water and 55% in air, improving pool user safety and experience by minimizing toxic compound concentrations.
Implementation Method 1
contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products
Implementation Method 2
non-decomposed sphagnum moss, which reduces the levels of DBPs by adsorbing and breaking down toxic compounds
Data Source
AI summary
A method of reducing disinfection by-products in water treated with disinfectants including contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products. A method of determining the effectiveness of a first method of reducing disinfection by-products in water treated with disinfectants, the first method including contacting the water with an amount of a non-decomposed moss effective to reduce the level of disinfection by-products, the method including determining the effectiveness of the first method by measuring the level of the disinfection by-products in water treated with disinfectants and contacted with the amount of non-decomposed moss.