Natural Waste Compound Sanitization via Non-Thermal Plasma
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Solution Overview
Problem
Current methods for processing natural origin wastes and fibers into agglomerates face limitations such as the inability to produce medium- and large-sized products due to limited waste usage, low-quality adhesives, and environmental concerns from burning low-quality pellets, which emit harmful fumes.
Innovation Solution
A process involving the preparation of a 'charge' through recovery, drying, milling, and sanitization of natural origin wastes using Non-thermal Plasma technology, followed by selection and blending with carriers and additives, and processing into semi-finished products using a twin-screw extruder and dielectric-barrier Non-thermal Plasma for sanitization and packaging.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If a limited quantity of waste product or fibre is used to avoid disintegration, then the material stability is improved, but the ability to produce medium- and large-sized products deteriorates
Solution Approach 1:
The patent introduces a specific adhesive composition as an intermediary substance that mediates between the waste fibers and the final product structure. This adhesive acts as a binding medium that holds larger quantities of waste material together without causing disintegration, enabling the production of medium- and large-sized products while maintaining material stability.
Solution Approach 2:
The patent changes the parameters of the adhesive system by specifying particular adhesive compositions and their proportions. By adjusting the adhesive parameters (composition, quantity, application method), the process enables the use of larger quantities of waste material while preventing disintegration, thus resolving the contradiction between material stability and product size.
2Ease of manufacture
If low-quality adhesives are used to contain costs, then the manufacturing cost is reduced, but the product quality and mechanical properties deteriorate
Solution Approach 1:
The patent specifies particular adhesive compositions and their optimal proportions as a way to change the parameters of the adhesive system. This targeted approach to adhesive selection improves product quality and mechanical properties while controlling manufacturing costs, resolving the contradiction between ease of manufacture and product strength.
3Ease of manufacture
If poor quality adhesive is used for economic reasons, then the manufacturing cost is reduced, but harmful emissions during burning increase
Solution Approach 1:
The patent changes the adhesive quality parameters by specifying particular adhesive compositions that are environmentally friendly. This resolves the contradiction by enabling the use of higher quality, low-emission adhesives while controlling manufacturing costs through optimized formulations and processes.
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 process enables the production of semi-finished products with improved mechanical properties and reduced bacterial contamination and VOCs, allowing for larger product sizes and higher fiber content without chemical additives, resulting in a more ecological and effective reuse of natural wastes.
Implementation Method 1
sanitization, a fundamental step due to the fact that a material subject to bacterial contamination is processed, which is based on the principle of advanced oxidation which is carried out through the innovative technology called 'Non-thermal plasma' or 'NTP'
Implementation Method 2
sanitization... which is based on the principle of advanced oxidation which is carried out through the innovative technology called 'Non-thermal plasma' or 'NTP'
Implementation Method 3
processing the blend to obtain the compound; processing the compound to obtain a semi-finished product using a twin-screw extruder and dielectric-barrier Non-thermal Plasma for sanitization and packaging
Data Source
AI summary
The invention concerns a process for making compounds using wastes of natural origin and fibres of plant or animal origin, wherein wastes of natural origin, fibres of plant origin, as well as wastes of animal origin, composing the so-called "charge", are mixed with agglomerating plastic materials, the so-called "carriers", and with agglomerating additives in order to form a mixture, the so-called "blend", which is transformed into a compound, the "compound", used for making semi-finished products. Said process occurs five sequenced steps that goes from the preparation of the "charge" and the "blend" to the selection of the "carriers" and agglomerating additives till the process of the "blend" to obtain the "compound" and finally to the process of the "compound" to obtain a semi-finished product. According to the invention the initial "charge" is submitted to a sanitization treatment, based on the principle of advanced oxidation, obtained by applying the technological process referred to as "Non-thermal plasma" or "NTP", where the so- called "non-thermal discharges with dielectric-barrier method" or "DBDs" are used, in order to strongly reduce bacterial charges, until removal thereof, decompose the volatile organic substances (VOCs) and remove smells.