Plastic-Wrapped Waste Bales Re-Pulping for Odor Control
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Solution Overview
Problem
Waste materials, including waste paper and organic materials, often emit odors and undergo aerobic degradation during transportation and storage, reducing their value and creating nuisances or hazards due to the time elapsed before recycling.
Innovation Solution
The method involves receiving plastic-wrapped compressed bales of waste material at a recycling location, where they are introduced into a re-pulping device to form treated waste material, with the plastic wrap preventing odor emission and aerobic digestion, thereby preserving the material's value and safety during transportation and storage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If waste material is transported and stored in loose form from remote collection sites, then transportation and storage are simplified, but odor emissions and aerobic degradation increase, reducing material value and creating hazards
Solution Approach 1:
The patent applies plastic wrapping (a flexible film) around compressed bales of waste material to create a barrier that prevents odor emissions and aerobic degradation during transportation and storage, while maintaining the simplicity of handling compact units
2Volume of moving object
If waste material is baled and wrapped in plastic, then volume is reduced for efficient transportation and storage, but the complexity of the recycling process increases due to additional plastic removal steps
Solution Approach 1:
The patent changes the physical state of the plastic wrap from intact to disrupted by using mechanical means (rippers, shredders) or chemical means (caustic solutions) during the re-pulping process, allowing the plastic to be separated or dissolved without requiring complex pre-removal equipment
3Loss of time
If substantial time elapses between waste material collection and recycling, then transportation and processing logistics are improved, but aerobic degradation reduces the value of waste material as a recyclable resource
Solution Approach 1:
The patent creates an oxygen-excluded environment by wrapping compressed waste bales in plastic, which prevents aerobic degradation and allows extended storage and transportation times without losing material value or generating odors
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
This method reduces odor emissions and preserves the value of waste materials by preventing aerobic degradation, allowing for efficient recycling of waste paper and organic materials into paper products like tissue, towel, and packaging products.
Implementation Method 1
the plurality of bales are wrapped in plastic film so as to substantially prevent emission of odor from the odorous compounds in the waste material or substantially stop formation of odor from the odorous compounds in the waste material
Implementation Method 2
introducing the plurality of plastic-wrapped compressed bales into a re-pulping device... re-pulping the waste paper in a re-pulping device to form a treated waste material including substantially re-pulped waste paper
Data Source
Figure 1
Figure 2A~2B
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AI summary
A method to facilitate recycling waste material, including waste paper and organic material, comprises the steps of receiving a plurality of plastic-wrapped compressed bales of the waste material at a waste material recycling location from a remote baling location, thereafter introducing the plurality of plastic-wrapped compressed bales into a re-pulping device at the waste material recycling location to form a treated waste material including substantially re-pulped waste paper, and thereafter discharging the treated waste material from the re-pulping device.