10–12T/H Cow Dung Compost Powder Production Line in Poland

Project Background and Client Requirements

The client approached RICHI Machinery in early 2023 with a clear set of objectives:

• Process 10–12 tons per hour of fresh cow dung.
• Produce compost powder suitable for agricultural applications.
• Ensure low environmental impact, particularly concerning odor and wastewater management.
• Integrate the production line into an existing warehouse facility to reduce construction costs.

After initial consultations, our team conducted a site survey, analyzed raw material properties, and recommended a layout that allowed smooth material flow, minimized cross-contamination, and simplified maintenance. The production line had to be flexible, as seasonal variations in manure moisture content required adjustable fermentation and drying processes.

Plant Layout and Facilities

The production line occupies a total area of 6,666.7 m², with a total building footprint of 4,640 m². The main plant structures and auxiliary facilities are distributed as follows:

The organic fertilizer production project includes basic utilities: municipal water supply, electricity from the local grid, and wastewater treated on-site for agricultural reuse.

Raw Materials

The 10–12t/h cow dung compost powder production line in Poland primarily utilizes cow manure sourced from local dairy farms, complemented by small quantities of sawdust and other organic additives to optimize C:N ratio during fermentation. This approach ensures nutrient-rich, well-textured compost powder suitable for Polish agricultural soils.

During production, moisture content is regularly monitored. The first few tons were sometimes too wet or too dry, but the fermentation process was adjusted accordingly. Maintaining uniform moisture was essential to avoid uneven decomposition and odor issues.

Production Equipment

The production line was equipped with a combination of automated and semi-automated machinery to ensure smooth operation at 10–12t/h. The client preferred equipment with reliable performance, low maintenance, and the ability to operate in a compact footprint.

RICHI engineers installed the turning compost machine in the fermentation workshop, allowing precise control over aeration and mixing. The packaging machine was placed near the exit point of the drying system, reducing handling time.

Production Process

The workflow for the 10–12t/h cow dung compost powder production line in Poland integrates several core steps. Below is the detailed process flow based on actual operation:

Detailed Process Flow

1. Raw Material Reception and Pre-Treatment
   • Fresh cow dung (70–80% moisture) is collected daily from local dairy farms using sealed trucks
   • Material is discharged into the raw material warehouse (800 m²) and stacked in rows for initial settling
   • Sawdust (10–15% moisture) is pre-screened for impurities and stored in a dry section adjacent to the mixing area
   • Tobacco dust and fermentation inoculant are stored in sealed containers to maintain potency
   • All incoming materials are logged by weight, source farm, and moisture content for quality tracking
2. Mixing and Moisture Adjustment
   • Raw cow dung is loaded into the mixing workshop via loader or conveyor
   • Sawdust is added at approximately 25–30% of total volume to achieve target C:N ratio (25:1 to 30:1)
   • Fermentation inoculant (microbial culture) is diluted with water and sprayed during mixing
   • Tobacco dust (1–2% of total volume) is added to enhance microbial activity and suppress certain pathogens
   • Target moisture after mixing: 50–55%; if too wet, additional sawdust is incorporated; if too dry, water is sprayed
   • Mixing continues for 5–8 minutes until uniform consistency and color are achieved
3. Fermentation and Aeration
   • Mixed material is transferred to the fermentation workshop (1,600 m²) and formed into long rows (3 m wide × 1.5 m high)
   • The turning compost machine passes through each row every 12–24 hours, ensuring oxygen penetration and uniform temperature distribution
   • Temperature monitoring probes are placed at 0.5 m and 1.0 m depths; core temperature is recorded daily
   • Thermophilic phase (55–65°C) typically begins within 48 hours and lasts 7–10 days, destroying weed seeds and pathogens
   • During peak heating, turning frequency is increased to twice daily to prevent anaerobic pockets
   • Forced aeration via floor ducts supplements oxygen when natural convection is insufficient
   • Total fermentation cycle: 15–20 days, depending on ambient temperature and initial moisture
4. Drying and Dehydration
   • After fermentation, material moisture is reduced to 25–30%; it is transferred to the drying system
   • Hot air furnace (electric heating) supplies controlled heat at 80–100°C to reduce moisture below 12%
   • Material passes through a rotating rotary dryer with retention time adjusted based on output moisture readings
   • Dried material is discharged onto a cooling conveyor to bring temperature down to ambient before screening
   • Energy consumption is optimized by recirculating exhaust heat where feasible
5. Screening and Sieving
   • Dried material enters a rotary screening machine with 3 mm and 5 mm mesh layers
   • Oversize particles (>5 mm) are returned to the crusher for size reduction
   • On-size powder (3–5 mm) proceeds to packaging; fines (<3 mm) are collected separately for specialty applications
   • Screening efficiency is monitored daily to maintain consistent particle size distribution
6. Quality Inspection
   • Samples are taken from each batch for laboratory analysis: moisture content, organic matter, pH, and nutrient levels (N-P-K)
   • Pathogen testing (Salmonella, E. coli, parasite eggs) is conducted weekly to verify safety standards
   • Heavy metal analysis is performed quarterly to ensure compliance with EU agricultural standards
   • Any batch not meeting specifications is diverted for re-processing or blending adjustment
7. Packaging and Storage
   • Approved compost powder is conveyed to the packaging machine in the packaging workshop (1,300 m²)
   • Automatic filling system packs powder into 25 kg, 40 kg, or 500 kg bulk bags depending on customer requirements
   • Bags are sealed, labeled with batch number, nutrient analysis, and application instructions
   • Palletized bags are stretch-wrapped and stored in the finished goods area before dispatch
   • Daily packaging capacity is synchronized with production output to maintain efficient inventory turnover

During process commissioning, adjustments were made for moisture variability and particle size uniformity. Operators reported that early batches required minor corrections in aeration frequency and drying temperature to achieve consistent quality.

Environmental Management

Environmental considerations were key to the project’s planning and execution. The 10–12t/h cow dung compost powder production line in Poland incorporates measures for odor control, dust management, wastewater treatment, and noise reduction.

• Odor: Workshops are fully enclosed, with ventilation directed through biofilters. Regular application of odor-neutralizing agents further reduces emissions.
• Dust: Screening and drying operations produce dust, which is captured by bag filters before release to the atmosphere.
• Wastewater: Only domestic wastewater is generated, treated in a septic tank and reused for plant irrigation.
• Noise: Equipment noise ranges from 65–85 dB(A). Strategic placement of machines and sound-dampening structures ensure compliance with local regulations.

Labor and Operation

The plant employs 5 full-time staff, including operators, a process engineer, and quality control personnel. The production schedule runs 300 days per year. Operators handle the fermentation, drying, and packaging operations, while the process engineer monitors quality and efficiency.

Investment and Project Cost

The total investment for the 10–12t/h cow dung compost powder production line in Poland is approximately USD 600,000, with environmental protection measures accounting for USD 30,000. The equipment cost falls within industry standards, offering an efficient, cost-effective solution for medium-scale manure composting.

Shipping and Logistics

All equipment and spare parts were shipped from Qingdao Port, China. The destination port for Poland was the Port of Gdańsk, facilitating inland transport to the client’s facility. This route minimized transit time and cost, ensuring timely commissioning of the production line.

Market Outlook in Poland

Poland has a well-developed dairy and livestock sector, with increasing emphasis on sustainable agriculture and organic farming. The 10–12t/h cow dung compost powder organic fertilizer production line aligns with government incentives for manure recycling and soil improvement. Demand for organic fertilizers is rising among crop farmers seeking nutrient-rich, chemical-free alternatives.

Investors and cooperatives can achieve steady returns by supplying local farms and regional distributors. RICHI Machinery’s turnkey solutions, including process design, equipment supply, and installation support, ensure rapid startup and reliable operation.

This case illustrates how the 10–12t/h cow dung compost powder production line in Poland converts livestock waste into valuable fertilizer, supports environmental protection, and delivers consistent production for the agricultural market.