Chicken Manure to Fertilizer Process: Industrial Machinery & Equipment Guide

Poultry litter is one of the most nutrient-dense organic waste streams available, rich in essential nitrogen, phosphorus, and potassium (N-P-K). However, raw chicken manure contains high moisture, aggressive organic acids, weed seeds, and pathogens like Salmonella. Converting raw poultry waste into stable, high-value commercial organic fertilizer requires an engineered processing line.

Below is an operational engineering guide on how Gofine fertilizer equipment transforms raw chicken manure into marketable bio-organic fertilizer powder or dust-free commercial granules.

Step 1: Dewatering and Carbon Balancing

Fresh poultry manure typically exits chicken houses with a moisture content between 60% and 70%. High moisture stalls oxygen movement, triggering foul anaerobic odors and slowing fermentation.

Dewatering Pre-Treatment: Raw slurry passes through a heavy-duty Gofine solid-liquid separator. High-torque stainless steel screw press technology extracts free water, dropping the moisture level down to the ideal 45%–55% window required for rapid microbial activation.

C:N Ratio Adjustment: Poultry waste naturally carries excess nitrogen. Mixing dry carbonaceous materials (such as sawdust, straw, or rice husks) balances the Carbon-to-Nitrogen ratio to roughly 25–30:1, preserving valuable nutrients while preventing ammonia volatilization.

Step 2: High-Temperature Aerobic Fermentation

Before applying manure to soil, it must undergo high-temperature aerobic stabilization to eliminate pathogens and weed seeds.

Active Aeration: The adjusted poultry waste is arranged in long outdoor windrows or placed into indoor concrete fermentation trenches.

Gofine Compost Turners: Utilizing either a Gofine self-propelled windrow turner or a hydraulic groove-type compost turner, the machinery thoroughly flips, pulverizes, and oxygenates the organic pile.

Pathogen Thermal Eradication: Continuous mechanical aeration fuels aerobic microbes, rapidly elevating internal pile temperatures to 55°C–65°C. Maintaining this thermal threshold for several days destroys harmful pathogens and insect larvae, completing aerobic fermentation within 12 to 15 days.

Step 3: Crushing, Screening, and Powder Refining

Once thermal stabilization is complete, the composted cake moves to the primary refining pad to prepare fine, uniform powder.

Fine Pulverizing: A Gofine high-moisture vertical chain crusher breaks down consolidated manure clumps and fiber bundles into fine organic powder without clogging.

Particle Screening: The pulverized material feeds into a heavy-duty rotary screening machine, separating oversized fibers and un-decomposed debris from the target fine powder.

Nutrient Fortification: If custom NPK formulas or humic acids are needed, a twin-shaft horizontal mixer uniformly blends functional additives into the organic base.

Step 4: Spherical Granulation, Drying, and Packaging

For commercial fertilizer manufacturers targeting broad-acre agricultural markets, converting fine compost powder into dense, dust-free granules maximizes transport efficiency and spreading performance.

The Continuous Granulation Line Sequence

Precision Granulation: Refined manure powder feeds into a Gofine wet-type stirring granulator or disc granulator. Liquid misting paired with high-speed centrifugal force forms tight, spherical 2–5 mm fertilizer pellets.

Thermal Drying and Cooling: Freshly formed wet granules pass through a heavy-duty rotary drying drum to reduce internal moisture below 15%, followed by a rotary cooling drum to harden pellet structure and prevent caking during storage.

Automated Sizing and Recycling: A secondary rotary screen isolates qualified 2–5 mm granules for final automated bagging, while undersized fines automatically route back to the granulator in a continuous recycling loop.

Design Your Poultry Waste Processing Line

Are you looking to resolve farm manure compliance issues or build a new commercial organic fertilizer manufacturing plant? Our engineering team designs and manufactures complete, synchronized material handling lines tailored to your target output, site footprint, and budget.

Contact our technical department today for custom layout blueprints, utility calculation reports, and factory-direct equipment quotes!