Oxygen-Enriched Liquid Injection for Waste Pile Aerobic Degradation
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Solution Overview
Problem
Current waste treatment methods, particularly in landfills and composting sites, face inefficiencies due to slow anaerobic degradation processes and challenges in distributing oxygen effectively within waste piles, leading to issues like greenhouse gas production and odor issues.
Innovation Solution
The method involves creating an oxygen-enriched liquid using air or pure oxygen, which is introduced into the waste pile to facilitate aerobic degradation, utilizing a system with liquid introduction and collection systems, and controlling internal flow with membranes to enhance processing efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If anaerobic degradation is used for waste treatment, then waste can be treated without oxygen, but the process is slow and produces greenhouse gases
Solution Approach 1:
The patent changes the fundamental parameter of oxygen availability in the waste treatment system. By introducing oxygen-enriched liquid through injection systems and maintaining aerobic conditions through controlled liquid addition, the system transitions from anaerobic to aerobic degradation, thereby eliminating greenhouse gas production while accelerating waste treatment
Solution Approach 2:
The patent employs hydraulic systems to inject oxygen-enriched liquid into the waste mass and uses liquid distribution systems to maintain aerobic conditions throughout the waste pile. This pneumatic-hydraulic approach ensures efficient oxygen delivery to accelerate biodegradation while preventing anaerobic conditions
2Object-generated harmful factors
If oxygen is distributed within waste piles to enable aerobic degradation, then greenhouse gas production is halted, but effective oxygen distribution is challenging
Solution Approach 1:
The patent uses liquid as an intermediary carrier to deliver oxygen into the waste mass. Instead of directly introducing gas oxygen which would be difficult to distribute, the system dissolves oxygen in liquid and injects it through the waste pile, using the liquid as a mediator to achieve uniform oxygen distribution throughout the waste matrix
Solution Approach 2:
The patent implements localized oxygen injection points distributed throughout the waste pile, creating zones of high oxygen concentration where needed. The injection system targets specific locations within the waste mass to ensure adequate oxygen supply at the microbial activity fronts, rather than attempting uniform distribution throughout the entire volume
3Productivity
If liquid is added to maintain aerobic degradation, then oxygen availability is improved, but waste moisture content increases which may cause fires
Solution Approach 1:
The patent carefully controls the moisture content parameter by adding liquid at regulated rates and monitoring the overall moisture level in the waste pile. By maintaining moisture content within optimal ranges for aerobic degradation while preventing excessive saturation, the system accelerates biodegradation without creating the wet, oxygen-rich conditions that would promote spontaneous combustion
Solution Approach 2:
The system employs monitoring of temperature and moisture conditions within the waste pile to provide feedback on the aerobic degradation process. This feedback mechanism allows operators to adjust liquid addition rates in real-time, preventing conditions that would lead to both process failure and fire hazards while maintaining optimal degradation rates
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 approach accelerates waste processing, reduces greenhouse gas emissions and odors, and produces a stable, beneficial end product suitable for agricultural use, while minimizing environmental risks and optimizing waste storage capacity.
Implementation Method 1
mixing said source liquid and said air or oxygen using said mixing system to create an oxygen-enriched liquid
Implementation Method 2
introducing said oxygen-enriched liquid into said volume of solid waste using said liquid introduction system to contact said volume of solid waste so as to aerobically degrade said volume of solid waste
Implementation Method 3
The bacteria break down the solids and liquid waste
Implementation Method 4
The ability to distribute the oxygen to the waste
Implementation Method 5
Temperature increases with the availability of the dissolved and released oxygen
Data Source
AI summary
This method improves and controls ex-situ or in-situ, aerobic or anaerobic digestion of organic materials and toxic or damaging compounds through increased control of multiple chemical and biological settings and conditions. The ability to control flow, natural processes, and biological activity, while adjusting to individual site conditions, offer many opportunities to modify results. Large quantities of modified or adjusted organisms are developed and utilized. Identification and strategic manipulation of the multiple elements of the system result in performance modifications. Energy is utilized to manipulate characteristics of a natural degradation system.