Activated Carbon Black Microbe Stabilization in Fertilizer
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Solution Overview
Problem
Current fertilizer compositions face limitations in delivering a wide range of microorganisms effectively, as high temperatures during fertilizer creation can render microorganisms inactive, and highly acidic or basic fertilizers can be harmful to them.
Innovation Solution
A microbe-enhanced fertilizer composition that includes nitrogen, potassium, sulfur, acid modified and activated carbon black, and a plurality of live microorganisms, where the microorganisms are stabilized and delivered effectively alongside the fertilizer, potentially increasing shelf-life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If high temperatures are used during fertilizer creation, then fertilizer production efficiency is improved, but microorganisms become inactive and lose their beneficial properties
Solution Approach 1:
The fertilizer production process is segmented into distinct temperature zones: a high-temperature zone (400-900°C) for carbon black activation that excludes microorganisms, and a low-temperature zone for introducing and preserving microorganisms. This spatial and temporal segmentation allows each component to be processed under optimal conditions without compromising the other.
Solution Approach 2:
The carbon black is pre-activated at high temperatures before microorganisms are introduced. This preliminary action prepares the carbon black structure (creating porous, acid-modified activated carbon) while ensuring that microorganisms are not exposed to damaging temperatures, as they are added only after the high-temperature processing is complete.
2Quantity of substance
If highly acidic or basic fertilizers are used, then nutrient availability is improved, but microorganisms are harmed and their survival is reduced
Solution Approach 1:
Acid-modified activated carbon serves as an intermediary carrier that can tolerate acidic conditions during production but provides a protective microenvironment for microorganisms. The carbon structure acts as a buffer and protective matrix, allowing the fertilizer to maintain acidic properties for nutrient availability while the carbon-black coating protects embedded microorganisms from direct acid damage.
Solution Approach 2:
The fertilizer is formulated as a composite material containing carbon black, activated carbon, sulfate salts (potassium sulfate, ammonium sulfate), and microorganisms. This composite structure combines materials with different properties: the carbon components provide structural stability and acid resistance, while the sulfate salts provide nutrients, and the microorganisms provide biological functions. The composite nature allows the system to simultaneously achieve high nutrient availability and microorganism survival.
3Reliability
If microorganisms are coated on fertilizers under ambient conditions, then microorganism survival is improved, but the scope of microorganism types and delivery methods is limited
Solution Approach 1:
The invention changes the physical and chemical parameters of the fertilizer carrier (creating porous, high-surface-area activated carbon with specific acid modification) to enable new delivery methods. This allows microorganisms to be introduced at various stages (during granulation, after cooling, or as coatings) and enables the use of diverse microorganism types that can be delivered in different physical states, expanding beyond traditional ambient coating methods.
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 microbe-enhanced fertilizer composition enables the stable delivery of microorganisms with the fertilizer, enhancing soil fertility and plant growth while extending the shelf-life of both the microorganisms and the fertilizer.
Implementation Method 1
acid modified and activated carbon black
Data Source
Figure 1~2
AI summary
A fertilizer composition comprising nitrogen, potassium, sulfur, a carbon black that is acid modified and activated and a plurality of live microorganisms and methods for producing and using the same are disclosed.