Biodegradable Waste Pad with Micronutrients for Odor Control
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Solution Overview
Problem
Existing odor absorption technologies in waste absorbent articles, such as pads and litters, are not completely effective in preventing odor formation and often lose efficiency when moist, requiring high loading levels that increase costs and affect absorbency, and may not uniformly distribute nutrients to control odor effectively.
Innovation Solution
Biodegradable pads and litters coated or impregnated with micronutrients like inorganic salts and trace metals at 0.1-25% by weight to promote aerobic and anaerobic bacterial growth, ensuring uniform distribution across the surface for efficient odor control, combined with non-woven fibers and additives like activated charcoal for enhanced performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If odor absorbing compounds (activated carbons, clays, zeolites) are incorporated into the absorbent article, then odor control is improved, but the compounds lose efficiency when moist and require high loading levels that increase cost and adversely affect absorbency
Solution Approach 1:
The patent changes the fundamental mechanism from physical adsorption to biological degradation by introducing nutrients (amino acids, vitamins, trace minerals) that stimulate beneficial aerobic bacteria growth. This parameter change allows odor control to function effectively in moist conditions without requiring high loading levels, as the biological process continues actively where physical adsorption fails.
Solution Approach 2:
The patent replaces the mechanical/physical adsorption mechanism (activated carbons, clays, zeolites) with a biological mechanism (aerobic bacterial degradation). This substitution enables odor control to maintain effectiveness in moist environments, as aerobic bacteria can continue metabolizing odor-causing compounds even when water is present, unlike physical adsorbents that lose capacity when wet.
2Object-affected harmful factors
If high loading of odor absorbing compounds is used, then odor control effectiveness is improved, but the cost of the absorbent article increases and absorbency performance is adversely affected
Solution Approach 1:
The patent shifts from physical adsorption parameters (loading levels, surface area) to biological parameters (nutrient composition, bacterial growth conditions). By formulating a nutrient mixture containing amino acids, vitamins, and trace minerals, the system achieves effective odor control at lower material loading, reducing both cost and negative impacts on absorbency.
Solution Approach 2:
The patent creates a composite nutrient formulation combining amino acids, vitamins, and trace minerals that work synergistically to promote aerobic bacterial growth. This composite approach provides comprehensive nutrition for odor-degrading bacteria, achieving superior odor control at lower overall loading levels compared to using single compounds.
3Object-affected harmful factors
If physical absorption mechanisms are used to control odor, then some odor control is achieved, but the formation of odor itself is not prevented and malodorous compounds still exit the absorbent article
Solution Approach 1:
The patent converts the harmful anaerobic decomposition process into a beneficial aerobic degradation process. By providing nutrients that stimulate aerobic bacteria growth, the system transforms the natural tendency toward anaerobic odor-producing decomposition into aerobic metabolism that eliminates odorous compounds, converting a harmful process into a beneficial one.
Solution Approach 2:
The patent replaces passive physical absorption with active biological degradation. Instead of merely trapping odors temporarily, the aerobic bacteria actively metabolize and break down odor-causing compounds, providing reliable and complete odor prevention rather than temporary masking.
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 reduces odor production by stimulating facultative bacteria growth, maintaining efficiency even in moist conditions, and ensuring uniform nutrient distribution for improved odor management without increasing costs or affecting absorbency.
Implementation Method 1
The micronutrients are configured to promote the growth of bacteria that are capable of metabolizing waste by aerobic respiration and/or anaerobic respiration
Implementation Method 2
The micronutrients are configured to promote the growth of bacteria that are capable of metabolizing waste by aerobic respiration and/or anaerobic respiration
Implementation Method 3
amino acids, vitamins and/or trace minerals suitable for growth and development of bacteria, both aerobic and/or anaerobic, for biological stabilization of waste
Implementation Method 4
incorporation into the absorbent article of compounds that are known to absorb odors, such as activated carbons, clays, zeolites, silicates, cyclodextrine, ion exchange resins and various mixtures thereof. These compounds may control odor by mechanisms whereby the malodorous compounds and their precursors are physically absorbed
Data Source
AI summary
A waste absorbent material for the treatment of animal waste is provided which may comprise a non-woven pad or litter granules which include micronutrients which may stimulate specific microorganisms and reduce the gases produced by the aerobic and/or anaerobic decomposition of organic matter. The non-woven pad and/or litter may also comprise biodegradable fibers or biodegradable particulate and the micronutrients may be uniformly distributed over the pad surface or within the particulate and be incorporated at a selected thickness.