Biodegradable Animal Litter Composition for Strong Wet Clumping
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Solution Overview
Problem
Existing clumping animal litters, particularly those made from clay and biodegradable materials, face issues such as high density, non-biodegradability, clump fragility, and undesirable odors, while citrus-based litters may introduce citrus smells and inconsistent pH levels.
Innovation Solution
An animal litter formulation using rice fiber, lubricants, cohesiveness agents, and sodium bisulfate or other sulfates to enhance agglomeration and hardness, forming biodegradable pellets that clump upon wetting, with optional fragrance and microbial inhibitors to manage odors and spoilage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If clay is used as the substrate for animal litter, then the litter has high density and good absorbency, but the litter becomes heavy, fragile, and non-biodegradable
Solution Approach 1:
The patent changes the material composition from clay to biodegradable organic materials (corn cob, wheat bran, rice hulls, soybean hulls) while adjusting the physical and chemical parameters of these materials through processing to achieve comparable absorbency and improved biodegradability
Solution Approach 2:
The patent creates a composite litter material combining multiple biodegradable substrates (corn cob, wheat bran, rice hulls, soybean hulls) with binders and flavoring agents to achieve both functional performance and environmental compatibility
2Stability of the object's composition
If liquid-activated adhesive material is coated on particle surfaces to cause agglomeration, then the litter particles clump together, but the adhesive material may contribute to odor and is not biodegradable
Solution Approach 1:
The patent uses biodegradable binders such as starch, cellulose, or protein-based materials that can be disposed of naturally without environmental harm, replacing persistent synthetic adhesives
Solution Approach 2:
The patent converts the natural moisture from animal urine, which could cause clumping, into a beneficial mechanism by using it to activate biodegradable adhesive materials and enhance the clumping action without adding synthetic chemicals
3Object-generated harmful factors
If citrus-based materials are used in animal litter, then the litter provides fragrance and odor control, but the litter may introduce citrus smells and has inconsistent pH levels
Solution Approach 1:
The patent uses natural flavoring agents derived from plants or animals that provide fragrance and odor control while being biodegradable and having stable, neutral pH levels
Solution Approach 2:
The patent adjusts the pH levels of the litter materials through selection and processing to achieve consistent, neutral pH while maintaining effective odor control through natural means
4Adaptability or versatility
If grain-based materials are used for biodegradable litter, then the litter can be flushed into sewage systems, but the litter may have undesirable odors and inconsistent clumping properties
Solution Approach 1:
The patent combines multiple grain-based substrates (corn cob, wheat bran, rice hulls, soybean hulls) with complementary properties to achieve consistent clumping performance and odor control while maintaining biodegradability and flushability
Solution Approach 2:
The patent introduces biodegradable binders and flavoring agents as intermediary substances that facilitate consistent clumping and odor control in the grain-based litter formulation
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 litter exhibits improved clump strength, reduced dust, consistent odor control, and biodegradability, maintaining a pleasant scent and minimizing spoilage, suitable for easy waste removal and disposal.
Implementation Method 1
The particles may be coated with a liquid-activated adhesive material, such as gelatinized starch, on the surfaces of the particles. When wetted, the adhesive material is activated and causes the discrete litter particles to agglomerate into clumps.
Implementation Method 2
The particles may be coated with a liquid-activated adhesive material, such as gelatinized starch, on the surfaces of the particles. When wetted, the adhesive material is activated and causes the discrete litter particles to agglomerate into clumps.
Implementation Method 3
Some known animal litters have good ammonia-masking properties.
Data Source
AI summary
An animal litter, process for preparing the animal litter, and a method for removal of animal waste using the animal litter are provided. The animal litter generally includes at least one sorbent and a sulfate such as sodium bisulfate. The animal litter is in the form of discrete plural particles which tend to agglomerate when wetted.