Composite Animal Litter with Reduced Bentonite and Odor Control
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Solution Overview
Problem
Traditional sodium bentonite clay litters are heavy, expensive, and limited in availability, with poor odor-controlling properties, necessitating a more efficient and cost-effective absorbent material with clumping characteristics comparable to those of clay-based litters containing greater than ninety percent sodium bentonite.
Innovation Solution
Composite particles comprising between thirty and seventy percent sodium bentonite combined with filler materials like limestone, using a high shear agglomeration process to create a litter with reduced bulk density and improved clumping and odor control, optionally incorporating powdered activated carbon for enhanced odor absorption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If traditional sodium bentonite clay litters are used to achieve clumping characteristics, then clumping strength is improved, but bulk density increases and cost increases
Solution Approach 1:
The patent applies composite materials by combining sodium bentonite clay particles with filler materials (such as limestone, sand, or other inert materials) to create a composite litter composition. This allows the litter to maintain clumping strength through the bentonite component while reducing overall bulk density and cost through the filler material component. The composite structure enables effective clumping with reduced clay content compared to traditional pure bentonite litters.
2Strength
If traditional sodium bentonite clay litters are used to achieve clumping characteristics, then clumping strength is improved, but cost increases due to limited availability
Solution Approach 1:
The patent applies parameter changes by modifying the composition parameters of the litter, specifically reducing the percentage of sodium bentonite from traditional high clay content (90% or more) to lower concentrations (30-70% or less). By adjusting this key parameter and compensating with filler materials, the invention maintains adequate clumping strength while reducing dependence on limited-bentonite resources.
Solution Approach 2:
The patent uses composite materials to replace pure sodium bentonite with a mixture of bentonite and filler materials. This composite approach allows reduction of bentonite usage to maintain clumping functionality while decreasing overall material cost and dependency on limited bentonite supplies.
3Strength
If high concentrations of sodium bentonite are used to achieve clumping, then clumping strength is improved, but odor-controlling properties worsen
Solution Approach 1:
The patent applies composite materials by combining sodium bentonite with filler materials that have odor-controlling properties. This composite structure enables the litter to achieve both clumping strength (through bentonite) and odor control (through filler materials such as activated carbon, zeolite, or other odor-absorbing additives), resolving the contradiction between clumping performance and odor management.
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 composite particles achieve clumping strength comparable to pure sodium bentonite litters while reducing sodium bentonite usage, lowering bulk density, and providing effective odor control, making them a more sustainable and efficient alternative.
Implementation Method 1
sodium bentonite is a water-swellable clay which, upon contact with moist animal waste, is able to agglomerate with other moistened sodium bentonite clay particles
Implementation Method 2
using a high shear agglomeration process to create a litter with reduced bulk density and improved clumping
Implementation Method 3
optionally incorporating powdered activated carbon for enhanced odor absorption
Data Source
AI summary
A clumpable animal litter comprises composite particles of filler materials, such as limestone and sand, and sodium bentonite. The filler materials have a lower bulk density as compared to a granular mixture of the same percentage of filler and sodium bentonite clay and contain up to eighty-five percent less clay.