Humic Acid Extraction

The escalating challenge of global food waste necessitates innovative solutions that transform waste streams into valuable resources. Concurrently, the demand for sustainable agricultural practices to enhance soil health and productivity is paramount. Our company is at the forefront of this nexus, offering a cutting-edge humic acid extraction service. We specialize in the bioprocessing of food industry waste, utilizing advanced technologies to produce high-purity humic acid, a critical component for effective soil remediation and enrichment.

Fig 1. Hydrothermal synthesis of similar mineral-sourced humic acid from food waste (Chen P.F., 2022)

Our core service involves the sophisticated extraction of high-purity humic acid (purity >85%) from compost derived from food industry waste. This humic acid is specifically produced for application as a highly effective soil remediation agent and agricultural amendment. We employ an environmentally sound and efficient extraction process, ensuring a premium product that supports sustainable farming and ecological restoration.

Technical Principles

The cornerstone of our extraction process is supercritical carbon dioxide extraction technology. This method leverages the unique properties of CO2 when it is subjected to temperatures and pressures above its critical point (31.1° C and 73.8 bar). In this supercritical state, CO2 exhibits liquid-like density and gas-like viscosity and diffusivity, making it an excellent solvent.

The process involves:

• Pressurizing and heating CO2 to its supercritical state.
• Passing the supercritical CO2 through the composted food waste feedstock.
• The supercritical CO2 selectively dissolves humic acid fractions due to its enhanced solvating power and tailored operational parameters (temperature, pressure, flow rate).
• The humic acid-laden supercritical CO2 is then depressurized, causing the CO2 to return to its gaseous state and precipitate the dissolved humic acid.
• The gaseous CO2 can be recycled and reused in the process, minimizing environmental impact.
• The separated humic acid is collected as a high-purity solid.

Technical Classification

Our service is classified under:

• Extraction Technology: Supercritical Fluid Extraction (SFE).
• Feedstock Processing: Biological Waste Valorization; Composted Organic Material Treatment.
• Product Category: Bio-stimulants; Soil Conditioners; Organic Soil Amendments.

Application Areas

The high-purity humic acid extracted through our service is primarily utilized in:

• Soil Remediation: Improving the structure of contaminated or degraded soils, enhancing water retention, and immobilizing heavy metals.
• Agriculture: Serving as a soil conditioner and plant growth stimulant, increasing nutrient uptake, improving crop yields, and enhancing stress resistance in plants.
• Horticulture: Used in potting mixes and for high-value crops to promote vigorous growth.
• Landscaping and Reforestation: Aiding in the establishment of vegetation in challenging soil environments.

Environmental Benefits

Our humic acid extraction service provides significant environmental advantages:

• Waste Valorization: Diverts food industry waste from landfills, reducing methane emissions and transforming it into a valuable agricultural input.
• Circular Economy: Promotes a circular economy model by recycling nutrients and organic matter back into the ecosystem.
• Reduced Chemical Fertilizer Dependency: Offers a natural alternative to synthetic fertilizers, decreasing their environmental footprint.
• Enhanced Soil Carbon Sequestration: Humic substances contribute to stable soil organic carbon, aiding in climate change mitigation.
• Sustainable Land Management: Supports practices that improve soil health and resilience for long-term agricultural productivity.

Our Services

Our company is dedicated to providing comprehensive solutions tailored to our clients' needs in the realm of humic acid production and application. We understand that each feedstock and desired outcome can be unique, and our services are designed to offer flexibility and expertise at every stage. We offer the following specific services:

• Feedstock Evaluation and Pre-treatment Consultation: Analysis of your composted food waste material to determine its suitability for humic acid extraction and advice on optimal pre-treatment methods.
• Customized Supercritical CO2 Extraction: Tailoring the extraction parameters (pressure, temperature, flow rate, co-solvents if necessary) to maximize yield and purity from your specific feedstock.
• Pilot-Scale and Full-Scale Extraction Services: Offering both pilot trials for process validation and full-scale contract manufacturing of high-purity humic acid.

• Product Formulation Support: Assisting in the formulation of the extracted humic acid into user-friendly soil remediation agents or agricultural biostimulants.
• Analytical Services: Providing detailed analysis of the extracted humic acid, including purity assessment, molecular weight distribution, and functional group characterization.
• Process Optimization and Technology Transfer: For clients interested in establishing their own extraction facilities, we offer consultation services for process optimization and technology transfer.

Company Service Advantages

Contact Us

Our humic acid extraction service offers an advanced, environmentally sound solution for transforming food industry waste into a high-value product for sustainable agriculture and soil remediation. By leveraging the precision and efficiency of Supercritical CO2 Extraction, we deliver superior purity humic acid, empowering our clients to enhance soil health, improve crop yields, and contribute to a healthier planet. We are committed to partnering with organizations seeking sustainable innovations in waste management and agricultural inputs.

How to Place an Order

Our products and services are for research use only and cannot be used for any clinical purposes.