Electrochemical Copper Recovery from Antibacterial Waste
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Solution Overview
Problem
Heavy metal contamination from antibacterial solutions used in agriculture poses environmental and health risks due to the release of toxic metals like copper sulfate into soil and water, which are not effectively removed or reused.
Innovation Solution
A method and system for electrochemical extraction of elemental metals from antibacterial solutions, such as copper sulfate, to produce metal precipitates and neutralize byproducts, allowing for the regeneration of the antibacterial solution and reducing environmental contamination.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If antibacterial solutions containing heavy metals are used in agriculture, then disease prevention and control effectiveness is improved, but environmental pollution and health risks increase due to heavy metal contamination of soil and water
Solution Approach 1:
The patent converts the harmful heavy metal contamination into a beneficial resource by using electrochemical extraction to recover valuable metals like copper from used antibacterial solutions. The extracted metals can be reused, while the byproducts are neutralized, transforming an environmental hazard into a resource recovery opportunity that maintains disease prevention effectiveness while eliminating pollution.
Solution Approach 2:
Instead of discarding used antibacterial solutions containing heavy metals, the patent implements a recovery system that extracts and recovers the metal components through electrochemical processes. This allows the antibacterial solutions to be regenerated and reused, preventing environmental contamination while maintaining their disease control function.
2Ease of manufacture
If heavy metals are not removed from antibacterial solutions, then treatment cost is reduced, but environmental and health risks increase
Solution Approach 1:
The patent transforms the costly waste disposal problem into a beneficial metal recovery process. By implementing electrochemical extraction, the system recovers valuable metals from used antibacterial solutions, generating potential revenue from metal sales while eliminating toxic discharge. The recovered metals can be reused, further reducing treatment costs.
Solution Approach 2:
The system enables self-service by allowing farms to recover and reuse their own metal resources on-site. The electrochemical extraction process is designed to be relatively simple and can be implemented at the farm level, allowing operators to independently manage their waste streams and recover valuable materials without requiring complex external processing facilities.
3Productivity
If electrochemical extraction is performed on large volumes of antibacterial solution, then metal recovery efficiency is improved, but energy consumption and process complexity increase
Solution Approach 1:
The patent segments the large volume treatment process into manageable stages: initial electrochemical extraction at high current density for rapid metal recovery, followed by lower current density stages for complete extraction. This segmented approach optimizes energy efficiency by using high energy input only when most beneficial, rather than maintaining high energy consumption throughout the entire process.
Solution Approach 2:
The electrochemical extraction process uses periodic variation in current density and extraction conditions to optimize metal recovery efficiency while managing energy consumption. The system cycles through different extraction phases, allowing high-rate recovery when metal concentrations are high and lower-rate completion phases when concentrations decrease, thereby improving overall productivity without excessive energy use.
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 achieves high efficiency in extracting elemental metals with purities of 90% or greater, enabling the reuse of antibacterial solutions and reducing environmental pollution, with potential for significant cost savings and improved agricultural practices.
Implementation Method 1
performing an electrochemical extraction on the antibacterial solution; producing a metal precipitate
Implementation Method 2
introducing an oxidizing agent into the copper (Cu) and the sulfuric acid (H2SO4); and regenerating a fresh copper sulfate (CuSO4)
Data Source
AI summary
A method for extracting an elemental metal from agricultural waste including collecting a sample of the waste and performing an electrochemical extraction on the waste to producing a metal precipitate and a byproduct. The method further including collecting the metal precipitate and byproduct produced via the electrochemical extraction for further reaction, recycling, sale, or reuse.