Biodegradable Polymer Composite for Low-CO2 Humus Conversion
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Biodegradable polymers release significant amounts of CO2 during degradation, contributing to greenhouse gas emissions and undermining their efficient utilization as soil humus.
Innovation Solution
A method involving a composite material system formed from biodegradable polymers and materials that slowly release nutrient nitrogen or phosphorus, with a carbon-to-nitrogen mass ratio of 1:35, compounded by physical blending or hydrogen bond interactions, converting polymers into humus to minimize CO2 release.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If biodegradable polymers are degraded in the natural environment, then they can be converted into humus and release nutrients, but they release significant amounts of CO2 during degradation
Solution Approach 1:
The patent converts the harmful CO2 release during biodegradation into a beneficial process by introducing nitrogen-containing compounds that guide the degradation pathway toward humus formation rather than CO2 emission. The nitrogen sources act as catalysts to redirect the biochemical transformation, turning what would be a harmful greenhouse gas emission into useful humus production that sequesters carbon in the soil.
Solution Approach 2:
The patent introduces nitrogen-containing compounds (such as urea, ammonium sulfate, or amino acids) as intermediary substances that mediate between the biodegradable polymer and the final humus product. These intermediaries provide nitrogen that microorganisms use to transform polymer carbon into stable humus compounds rather than converting it to CO2, thus acting as a bridge in the transformation process.
2Quantity of substance
If biodegradable polymers are used as agricultural materials, then they can slowly release elements and improve soil fertility, but they cause pollution and are commonly landfilled instead
Solution Approach 1:
The patent creates a composite material system combining biodegradable polymers with nitrogen-containing compounds. This composite structure allows the polymer to maintain its slow-release nutrient function while the added nitrogen components prevent pollution by directing degradation toward beneficial humus formation. The composite nature ensures that as the polymer degrades, it simultaneously releases nutrients and promotes carbon sequestration, avoiding the pollution associated with conventional landfilling.
3Quantity of substance
If composting is used to convert organic wastes into humus, then stable humus can be produced with long-term fertilizer efficiency, but the conversion of biodegradable polymers into humus is not efficient
Solution Approach 1:
The patent changes key parameters of the composting system by introducing nitrogen-containing compounds at specific concentrations and ratios. This parameter modification transforms the composting process from one where biodegradable polymers inefficiently convert to humus to one where the polymers efficiently contribute to humus formation. The nitrogen addition alters the biochemical environment to favor humus-producing pathways, thereby increasing composting productivity and humus yield.
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 method effectively reduces CO2 emissions while promoting the conversion of biodegradable polymers into humus, enhancing soil fertility and nutrient content, thereby supporting sustainable agricultural practices.
Implementation Method 1
biodegradable polymers can be hydrolyzed or degraded by the enzymes or microorganisms in the presence of water so that the backbones of the polymers break
Implementation Method 2
biodegradable polymers can be hydrolyzed or degraded by the enzymes or microorganisms in the presence of water
Implementation Method 3
Humus is a colloidal substance formed by microbial decomposition and conversion of organic substances
Implementation Method 4
composting is a biochemical process with crop straw, weeds, leaves, peat, organic household waste, kitchen waste, sludge, human and animal manure, distiller's grains, fungus chaff and other organic wastes as the main raw materials and utilizing microorganisms widely existing in the nature
Implementation Method 5
the biodegradable polymers and the materials that slowly release nutrient nitrogen or nutrients nitrogen and phosphorus are compounded by physically blending or by hydrogen bonds interaction among functional groups of each of components of the composite material system
Data Source
AI summary
The present disclosure relates to biodegradable polymers, particularly to a method for converting biodegradable polymers into humus with a low release amount of CO2 and use thereof. A composite material system is formed from the biodegradable polymers and the materials that can slowly release nutrient nitrogen or nutrients nitrogen and phosphorus, in which the mass ratio of carbon to nitrogen in the composite material system is (1-35):1. The materials of the present disclosure can promote the biodegradable polymers to be converted into soil humus or compost humus, rather than to be converted into greenhouse gas CO2, which is to be emitted into the atmosphere.