Fish Feed Manufacturing Plant in Brazil

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Project Background

The client is a Brazilian aquaculture company specializing in the production of high-value fish species for domestic consumption and export. Recognizing the need for locally produced, high-quality fish feed, the client initiated this expansion project to reduce dependence on imported feed and ensure consistent supply.

The choice of Brazil as the project site leverages the country’s abundant supply of fishmeal, soybean meal, starch, and other feed additives. The production line was designed to handle an annual output of 140,000 tons of fish feed, primarily targeting commercial aquaculture operations. The feed products are formulated for optimal growth performance and digestibility, particularly for species such as tilapia, catfish, and shrimp.

The fish feed manufacturing plant in Brazil project includes the construction of one main production workshop (4,930.77 m², four floors including one basement), five finished product warehouses, and one raw material storage building (16,000 m²), along with office facilities and a boiler house. Environmental protection measures are incorporated to meet local regulations, including wastewater treatment, dust and odor control, and solid waste management.

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Construction and Project Scope

Main Project Components

Main Products and Capacity

Key Production Units

The fish feed manufacturing plant in Brazil is centralized in the main production workshop. The facility incorporates a raw material receiving system, pre-mixing, grinding, secondary mixing, extrusion (expansion) and pelleting, drying, coating, cooling, and packaging systems. The plant also includes boiler facilities, air compression systems, and auxiliary dust collection and filtration equipment.

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Raw Materials

Brazil provides abundant access to high-quality feed ingredients suitable for aquaculture feed production. The primary raw materials for this fish feed manufacturing plant in Brazil include fishmeal, soybean meal, wheat flour, starch, oils, and feed additives. These materials are sourced from domestic suppliers to ensure consistency and cost-effectiveness.

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Water and Waste Management

Water consumption for the plant is approximately 200 t/d (50,000 t/a), including boiler water, cleaning water, and domestic water for employees. The boiler system recycles condensate, minimizing fresh water intake. The plant employs a biochemical wastewater treatment system to handle domestic and process wastewater, discharging treated water in compliance with local municipal standards. Rainwater is collected and directed to municipal drainage.

The fish feed manufacturing plant in Brazil project adopts zero-discharge practices for boiler condensate and cleaning wastewater, maximizing water recycling. Domestic wastewater, accounting for 11.4 t/d (2,800 t/a), is treated using a septic tank followed by secondary biological treatment before release into the municipal sewer.

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Workforce

The fish feed mill project employs 120 personnel, working three shifts over 24 hours. 80 employees reside on-site, reducing commuting-related emissions and improving operational efficiency. Worker safety and training are integral parts of the facility management.

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Plant Layout

The fish feed plant layout is carefully designed for optimal material flow and operational efficiency. The main production building is located on the eastern side of the plot, the boiler house is positioned north (downwind) to minimize air pollution impact, and warehouses occupy the remaining area. Production processes are arranged to reduce cross-contamination and ensure safe, efficient operations.

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Detailed Production Process and Operation Control

The fish feed manufacturing plant in Brazil follows a fully integrated production process designed for high efficiency, feed quality consistency, and operational safety. The process combines raw material preparation, pre-mixing, grinding, secondary mixing, extrusion/pelleting, drying, coating, cooling, screening, packaging, and auxiliary operations.

1. Raw Material Handling and Pre-Mixing

Operation:

• Incoming raw materials (corn, soybean meal, fish meal, wheat middlings, vitamins, minerals) are received in the Receiving Hopper and conveyed via Scraper Conveyors and Bucket Elevators to pre-mixing silos.
• Materials pass through Magnetic Separators to remove metal contaminants. Oversized debris is screened via Screens.
• Pre-Mixer blends materials for 3–5 minutes for initial homogeneity. Minor additives are measured with Electronic Weighing Scales for accurate dosing.

Control Points:

• Moisture content of raw materials monitored continuously; ideal range 12–14%.
• Pre-mixer speed adjusted to maintain uniform blending without material segregation.
• Dust collected by Pulse Dust Collector to maintain air quality.

Maintenance:

• Daily inspection of conveyors, elevators, and separators for wear or blockages.
• Dust collector bags replaced monthly or as needed.
• Magnetic separator magnets cleaned weekly.

2. Grinding System

Operation:

• Hammer Mills grind pre-mixed materials to fine powder (<1 mm).
• Ground powder passes through Cyclone Separators to remove airborne dust, returning fines to the process.
• Air Lock Valves maintain negative pressure in pneumatic systems, ensuring smooth material flow.

Control Points:

• Monitor hammer wear; replace every 3–6 months depending on feed type.
• Adjust fan speed to maintain proper airflow and prevent overheating.
• Moisture and particle size checked before transferring to secondary mixers.

3. Secondary Mixing and Additive Incorporation

Operation:

• Ground material enters Vertical Mixers for homogenization.
• Liquid Spray Systems add oils, attractants, and micro-nutrients uniformly.
• Batching Scales ensure precise addition of vitamins and trace minerals.

Control Points:

• Mixing time 5–8 minutes to prevent segregation.
• Temperature monitored during oil addition to prevent oxidation.
• Continuous sampling for quality control.

4. Extrusion and Pelleting

Operation:

• Conditioned feed enters Multi-Layer Conditioner with controlled steam injection to gelatinize starches.
• Fish Feed Extruder shapes feed into pellets; Dies determine pellet diameter.
• Cutters ensure consistent pellet length.

Control Points:

• Steam pressure and temperature monitored continuously.
• Screw speed and die temperature adjusted for desired density.
• Moisture content of pellets post-extrusion targeted at 20–22%.

5. Drying, Cooling, Coating, and Packaging

Operation:

• Horizontal Fish Feed Dryers reduce pellet moisture to 8–10%.
• Pellet Coolers cool pellets to ambient temperature to prevent microbial growth.
• Coating Drums apply oils, vitamins, and attractants uniformly.
• Rotary Sieves ensure uniform pellet size.
• Automatic Bagging Machines pack feed into 25 kg bags.

Control Points:

• Drying temperature and airflow monitored to prevent pellet cracking.
• Coating rate adjusted for nutrient requirements.
• Packaging scales calibrated daily.

6. Auxiliary Systems

• Boiler (2 t/h Natural Gas): Steam generation for conditioning; monitored for pressure and temperature.
• Compressed Air System (7.5 kW): Supports pneumatic transport; moisture traps maintained weekly.
• Emergency Generator (100 kW): Ready for power interruptions; tested monthly.

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Key Equipment and Machinery

The fish feed manufacturing plant in Brazil is equipped with a comprehensive suite of machinery to ensure high-efficiency production, precise formulation, and consistent feed quality. All equipment supplied by the client has been retained, including models, specifications, and quantities. The full production line covers raw material handling, pre-mixing, grinding, secondary mixing, extrusion/pelleting, drying, coating, cooling, packaging, and auxiliary systems.

1. Raw Material Receiving and Handling System

2. Pre-Mixing and Primary Mixing Equipment

3. Grinding System

4. Secondary Mixing and Additive Incorporation

5. Extrusion / Pelleting System

6. Drying and Cooling

7. Coating and Flavoring

8. Screening and Packaging

9. Auxiliary Equipment

Note: The plant incorporates over 100 individual equipment items, all specifically selected to meet feed quality standards, ensure high operational efficiency, and provide flexibility for multiple feed formulas, including tilapia, catfish, shrimp, and specialty feeds.

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Environmental Protection Measures

The fish feed manufacturing plant in Brazil is designed with a strong emphasis on sustainability and compliance with Brazilian environmental regulations.

1. Wastewater Treatment

• Domestic Wastewater: 11.4 t/d (2,850 t/a) collected and treated through a septic tank and secondary biological treatment before discharge.
• Process and Boiler Wastewater: Fully recycled for reuse in the system. Steam condensate, cooling water, and cleaning water are returned to storage tanks and reused, minimizing fresh water consumption.
• Rainwater Management: Rainwater from roofs and hard surfaces is collected and directed to municipal drainage, preventing flooding and soil erosion.

2. Air Pollution Control

• Boiler Emissions: Natural gas-fired boiler, 2 t/h capacity, exhaust vented through a 15 m stack to ensure dispersion.
• Dust Collection: Pulse bag filters (3 units) capture dust from pre-mixing, grinding, and pelleting stages. Collected dust is returned to the process or safely stored.
• Odor Control: Exhaust from feed processing lines is passed through an alkaline scrubber system before release, controlling odor and reducing environmental impact.

3. Solid Waste Management

• Waste packaging materials are collected and sent to municipal recycling or disposal.
• Sludge from wastewater treatment is processed, dried, and can be used as organic soil amendment if suitable.
• Equipment maintenance generates minimal solid waste, managed via internal procedures.

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Investment and Project Cost

The total investment for the fish feed manufacturing plant is approximately USD 3.58 million, including:

• Equipment and machinery: USD 2.6 million
• Construction and infrastructure: USD 900,000
• Environmental protection facilities: USD 50,000
• Contingencies and miscellaneous costs: USD 30,000

The Brazil fish feed mill plant cost breakdown:

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Market Prospects of Fish Feed Manufacturing in Brazil

Brazil is among the top aquaculture producers globally, with tilapia, catfish, and shrimp farms expanding rapidly. Key market drivers include:

• Rising demand for high-quality, protein-rich fish feed to increase growth rates and feed conversion efficiency.
• Government incentives for sustainable aquaculture practices, including support for pelletized feed.
• Growing export markets for farmed fish and shrimp.
• Shift from farm-made feed to professional feed processing for consistency and safety.

The fish feed industry in Brazil is expected to grow at 5–7% annually, with high potential for modern, fully automated plants capable of producing multiple feed types.

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RICHI’s Support and Service for the Project

RICHI provided comprehensive support throughout the fish feed production line project lifecycle:

• Feasibility Study: Detailed assessment of raw materials, production capacity, and local regulations.
• Customized Line Design: Layout and equipment selection tailored to client specifications and feed types.
• Equipment Supply and Installation: All machinery, including twin screw extruder, mesh belt dryers, and DCS bagging machines, delivered and installed.
• Staff Training: On-site training for operators, maintenance staff, and quality control personnel.
• Technical Assistance: Post-installation support, process optimization, and troubleshooting.
• Environmental Compliance Guidance: Ensured all air, water, and solid waste treatment systems meet Brazilian standards.

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Project Summary

The fish feed manufacturing plant in Brazil represents a modern, fully automated production facility, capable of producing high-quality feed for multiple aquaculture species. Key achievements include:

• Retention of all client-specified equipment models and specifications, ensuring operational reliability.
• Integration of advanced environmental protection measures: dust collection, wastewater recycling, and odor control.
• Efficient, flexible production process allowing customization of pellet size, density, and nutritional content.
• Comprehensive technical support and training provided by RICHI, guaranteeing smooth commissioning and operational readiness.
• Strong market positioning, leveraging Brazil’s growing aquaculture sector and rising demand for professional feed solutions.

This fish feed processing line project establishes a benchmark for fish feed production in Brazil, combining high-quality feed output, environmental responsibility, and operational efficiency, positioning the client for sustainable growth in the aquaculture industry.