Compost Fertilizer Plant in Argentina

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Start with the Grower’s Application Method

Growers need to understand handling, application and nutrient contribution alongside the delivered quantity.

Supply context	Procurement question	Material role	Acceptance basis
Livestock operations	Collectable manure volume	Compost base	Composition and contaminants
Maize processing	Available clean residue	Carbon and structure	Moisture and size
Wheat handling	Competing uses	Bulking material	Cleanliness
Horticulture	Separated organic residues	Qualified blend component	Foreign matter and salts
Mushroom production	Local deliveries	Substrate component	Analysis and traceability

Procurement concentrates on collectable livestock and processing streams, leaving room for the soil-protection role of field residues. Tested composition and maturity give the sales team a product growers can relate to their crop and soil programme. The customer groups place different demands on the product:

Buyer	Product consideration	Commercial focus
Nearby arable farms	Tested nutrient and organic matter contribution	Application and transport
Maize growers	Soil-based application plan	Delivered quantity
Horticultural farms	Maturity and salts	Consistent small batches
Orchard operators	Spreading and storage	Product form
Specialist growers	Scheme-specific input eligibility	Documentation

Powder serves suitable nearby users; granules suit customers equipped for controlled granular spreading. The finishing machines run in campaigns supplied by released mature compost, rather than demanding fresh material continuously at their nameplate rates.

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Build the Product from Suitable Local Materials

Manure and qualified agro-processing residues provide the organic base. Clean bulking material supplies structure, while individual amendments are included for the intended formulation. Each ingredient has a purpose rather than simply contributing weight.

Material	Supply basis	Role	Acceptance
Livestock manure	Qualified local receipts	Organic base	Moisture and contaminants
Crop-derived bulking material	Available clean lots	Structure and carbon	Particle size
Qualified biomass ash	Controlled addition	Mineral amendment	Metals, salts and alkalinity
Spent mushroom substrate	Local supplier lots	Organic blend component	Salinity and foreign matter
Humic amendment	Product-specific dosing	Formulation component	Supplier analysis
Process inoculant	Only where justified	Biological process aid	Declared specification
Combined blend	Weighed batch	Composting feed	Recorded recipe

The intake basis is 14 tonnes/day of prepared wet blend at about 55% moisture. Allowing 25% dry-matter loss through composting leaves roughly 4.7 tonnes/day of solids, equivalent to about 5.6 tonnes of granules at 15% moisture. This balance governs intake and stock space.

• Manure supplies organic material and nutrients
• Clean crop-derived material improves structure and carbon balance
• Qualified ash contributes a controlled mineral addition
• Suitable spent mushroom substrate adds another organic stream
• Humic amendments serve specific product formulations
• Water adjusts the mixture’s working moisture
• Mature compost becomes the common base for both finished products

Structure, absorbency and water addition work together to produce an aerated mixture suitable for turning. Material selection considers the following characteristics:

Material	Moisture check	Blend role	Chemical check	Handling check
Manure	Measure each lot	Nitrogen and organic matter	Salts and contaminants	Contained unloading
Bulking residue	Measure before blending	Air space and carbon	Feedstock suitability	Clean particle structure
Ash	Keep dry	Restricted mineral addition	Alkalinity and metals	Dust control
Mushroom substrate	Measure each lot	Qualified organic component	Salinity	Remove packaging
Humic amendment	Supplier specification	Product formulation	Declared composition	Accurate dosing

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Six Composting Bays Ahead of the Finishing Workshop

Three 50 m bays and one 35 m bay serve active processing; the other two 35 m bays serve curing. At 4 m width and 1.5 m working depth, gross volumes are 1,110 m³ active and 420 m³ curing. Usable allocations are 850 and 320 m³ respectively, leaving operating clearance.

The building schedule is:

Building	Area (m²)	Arrangement	Function
Composting	2,340	Covered bays	Active treatment and curing
Finishing	450	Enclosed workshop	Powder and granule routes
Finished warehouse	350	Protected storage	Released stock
Receiving and additive store	150	Separated materials	Short-term buffer
Office	80	Staff and laboratory	Administration and checks
Staff facilities	60	Support space	Breaks and changing
Electrical room	40	Controlled access	Power distribution
Total listed buildings	3,470	Within 6,000 m² site	Circulation outside buildings

The covered composting area serves both long and short bays: The bay arrangement includes:

• Three bays measuring 50 m × 4 m
• Three bays measuring 35 m × 4 m

The six bays provide 1,530 m³ gross volume. Active and curing stock occupy separate allocations within that total. The roof limits rainfall. Turning supports aerobic processing, followed by curing before product finishing.

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RICHI Equipment Connecting Composting and Finishing

Shared preparation feeds two finishing routes, giving the owner a clear division of biological and mechanical duties.

Equipment	Selection basis	Quantity	Duty
Compost turner	4 m bay width	1	Turn and aerate
Blending mixer	Material trial	1	Prepare consistent blend
Organic fertilizer granulator machine	2 T/H product	1 package	Form granules
Gas-fired hot-air system	Evaporation heat balance	1	Dryer heat
Rotary dryer	Up to 0.6 T/H evaporation	1	Controlled water removal
Cooler	Granule duty	1	Cool before storage
Crusher	Mature compost and recycle	1	Break lumps
Screens	Powder and granule duties	2	Classification
Weighing and closing system	25 kg and 50 kg formats	1	Campaign packing
Conveyors	Coordinated route	8 positions	Material transfer
Cyclones	Exhaust duty	1	Coarse separation
Collection chambers	Accessible collection	1	Accessible separation
Wet treatment units	Matched exhaust	1	Air treatment
Packing filter	Local dust loading	1	Dry dust capture
Exhaust outlet	Site-specific design	1 arrangement	Controlled discharge

Turning, fertilizer granulation, drying, cooling and packing form one coordinated equipment package.

The main equipment choices follow the process:

Turning across six bays. A transfer arrangement lets the turner serve both bay lengths. The machine works within the defined width and depth, while the batch schedule determines which bay is serviced next.

A defined granule route. Fertilizer granulation targets 2–5 mm saleable granules. Forming, screening and recycle handling are selected for up to 4 T/H gross flow, supporting 2 T/H finished output with circulating material.

One controlled drying route. A single rotary dryer handles the required evaporation, followed by a cooler. Feed rate, hot-air input and discharge moisture are controlled together; a second dryer is unnecessary for the selected duty.

Air treatment follows the main handling points:

• Coarse-particle collection on appropriate exhaust streams
• Accessible ducts and collection chambers
• Wet treatment matched to the selected exhaust route
• Local extraction beside powder and bag filling

Accessible ducts simplify cleaning and filter service.

Delivered LPG supplies the hot-air generator, avoiding dependence on an assumed local gas-main connection. A modulating burner around 0.8 MW thermal input provides capacity for up to 0.6 T/H water removal, including operating margin above the normal drying balance.

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The Shared Process and the Product Split

Mature compost is the shared base for both product routes.

Bring Each Material to Its Own Receiving Position

Wet residues unload on contained surfaces; dry amendments remain protected and separately identified.

The receiving arrangement provides:

• Enclosed or protected handling for dusty amendments
• Contained drainage under wet organic material
• Supplier and batch identification before blending

Mix for Structure as Well as Moisture

The starting blend targets 50–60% moisture and a carbon-to-nitrogen ratio around 25–30:1. Recipe changes respond to the manure analysis and bulking material, so adding water is not the automatic answer to every uneven batch.

The blending stage establishes:

• A batch within the mixer’s working capacity
• Even distribution of wet and dry components
• Moisture suited to the selected organic mixture

Extraction also serves dry amendment charging before the materials become a moist blend.

Aerobic Processing in Identified Batches

The active schedule allows about 28 days before a separate 14–21-day curing period. Temperature and maturity results can extend either stage; the intake rate is reduced if material needs longer residence.

At 14 tonnes/day and 550 kg/m³ blend density, 28 days of active stock occupy about 713 m³, below the 850 m³ usable allocation. With 35% moisture after active processing, the same solids balance gives about 278 m³ of curing stock over 21 days at that density.

The main biological operating variables are:

Parameter	Working basis	Control
Bay lengths	Three × 50 m and three × 35 m	4 m width
Working depth	1.5 m calculation basis	Turner and clearance limits
Starting condition	Batch-specific starting measurement	Record loading time
Active temperature	Common thermophilic working zone: 55–65°C	Multiple measurement positions; manage aeration
Exposure period	Documented product-specific time and temperature	Validated exposure
Residence	About 28 days active, followed by 14–21 days curing	Maturity release
Turning	Condition-based schedule	Oxygen, moisture and temperature

The turner supports four functions:

• Travel along the selected bay
• Mixing across the working width
• Aeration through the permitted depth
• Repeatable movement with guarded drives

Turning redistributes material and restores air space.

Moisture control and aeration limit anaerobic pockets.

The transition to curing follows:

• The temperature response after turning
• The material’s odour and physical condition
• The required maturity assessment
• Product-specific laboratory release requirements

Prepare the Mature Compost for Sale

Mature material is released using stability, maturity and contaminant checks. The powder route takes compost at no more than about 25% moisture; wetter batches receive further controlled moisture reduction before crushing and screening.

Powder production follows crushing, screening and packing.

Lump reduction prepares the screen feed. Excessively wet material is conditioned before crushing.

Classification separates:

• Oversize returning to preparation
• Accepted powder moving to packing

Powder campaigns bypass the granulator and thermal finishing train.

Shape the Granular Product

A fertilizer granulator equipment combines screened mature compost, controlled liquid addition and return fines. Binder use is determined by the formulation trial; the configuration does not assume every compost will form durable granules with water alone.

Granule formation is controlled through:

• Feed distribution
• The selected forming configuration
• Speed and residence
• A finished-product duty of 2 T/H

Weekly finishing is approximately forty tonnes of granules or forty-four tonnes of powder on this intake basis. That means about twenty granulating hours or fifteen powder-processing hours, scheduled over five days. Mixed orders share those hours and the same mature stock; the two rates are never added together.

Consistent formation depends on:

• Even moisture addition
• A prepared feed with repeatable particle character
• Formulation suited to the desired granule

Remove Moisture Before Long-Term Storage

Evaporation duty connects wet feed, heat input and the required product discharge condition.

At 2 T/H product and 15% moisture, the dry-solids flow is 1.7 T/H. At 30% inlet moisture, wet feed is about 2.43 T/H and evaporation about 0.43 T/H before losses. The 0.6 T/H evaporation selection provides margin for feed variation; return fines are included in the gross equipment flow.

The dryer inlet arrangement provides:

• Steady introduction of wet granules
• Contact between hot air and moving material
• Heat input matched to the evaporation load
• Separate observation of product temperature
• The main moisture-removal duty
• Residence through the rotating drum

The dryer discharge controls provide:

• Continuous transfer toward the cooler
• Heat input adjusted to outlet moisture
• Product-temperature observation
• Stable discharge through the drum outlet
• Residence and airflow adjustment within the same dryer

The drying route follows:

1. Wet granules entering at a controlled rate
2. Hot air supplying evaporation energy
3. Drum movement exposing the material
4. Continuous movement through the drying drum
5. Discharge toward cooling

Exhaust handling combines:

• Coarse-particle separation
• Accessible collection equipment
• Wet treatment where selected for the exhaust

The wet-treatment system retains a defined water and solids circuit separate from clean fertilizer.

Bring the Granules Toward Storage Temperature

Cooling follows drying while the product remains in the enclosed process route. The cooler prepares granules for classification and packing without leaving hot stock waiting on the workshop floor.

Its operating arrangement provides:

• Even material exposure to air
• Residence matched to discharge rate
• Access around drives and service points
• Airflow appropriate to the ambient conditions
• Product approaching a suitable packing temperature
• Moisture retained within the release specification

Dust from cooling is handled within the designated collection circuit. The clean finishing area remains separate from incoming organic residues.

Classify a Consistent Granule Fraction

The product screen works with the granulator’s circulating load. Its role is to send saleable granules forward while returning unsuitable fractions through the appropriate process route.

The screen arrangement includes:

• Capacity for the gross flow including recycle
• Access for cleaning and replacement
• Apertures selected for the marketed granule range

Three streams leave classification:

• Oversize to crushing and reprocessing
• Accepted granules to finished packing
• Fine material to granulation return

Weigh and Label by Product Campaign

Powder and granules enter packing through their assigned campaigns. Product identity, packaging and batch information change together, helping the warehouse keep the two ranges distinct.

The packing system provides:

• Bags suited to the product and storage period
• Throughput matched to the finishing route
• Repeatable net-weight control
• Secure closure and clear identification

Local extraction beside powder filling improves housekeeping where operators handle bags. The collection route is accessible for regular service.

Keep Released Stock Ready for Dispatch

The 350 m² warehouse separates powder and granule batches with clear loader aisles. Production follows confirmed orders and released mature stock.

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Utilities Follow the Powder–Granule Sales Mix

Utility	Duty	Sizing basis	Operating record
Fuel gas	Drying heat	Evaporation plus losses	Gas meter
Electricity	Drives and fans	Connected and running demand	Section metering
Treatment water	Exhaust system	Make-up and purge balance	Water record
Process water	Blend adjustment	Incoming moisture	Batch addition

The compact line has a preliminary connected electrical load of 120–160 kW on a three-phase 50 Hz supply. Routine water provision is 1–3 m³/day for staff, blend adjustment and treatment-system make-up; fire-water provision is separate.

Utility duties are divided by equipment group:

Section	Electrical duty	Operating pattern	Main control	Record
Turner	Travel and agitation	Condition-based	Bay schedule	Hours per batch
Mixer	Blending	Batch	Recipe and uniformity	Batches
Compost pellet making machine	Product formation	Granule campaigns	Feed and recycle	Net tonnes
Crusher	Size reduction	Both routes	Load and moisture	Throughput
Dryer and fans	Rotation and air	Granule campaigns	Temperature and moisture	Dryer hours
Cooler	Movement and air	With granules	Release temperature	Outlet checks
Screens	Classification	Route-dependent	Size separation	Reject ratio
Weighing	Packing	Dispatch schedule	Net weight	Bags
Conveyors	Transfer	Interlocked	Level and flow	Run hours
Treatment systems	Air and water	With process	Pressure and flow	Inspection log
Office and lighting	Support	Occupied hours	Separate load	Metering
Whole plant	Demand study	Campaign schedule	Campaign operation	Metered consumption

Route-specific operating records separate powder preparation from the extra forming and thermal work required for granules.

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Where the Dual-Product Layout Adds Value

Shared preparation gives the customer flexibility while avoiding duplication of every part of the plant. The two finishing routes create different products from an organized common supply of mature compost.

Powder orders. The shorter route serves buyers who value the organic material in a screened form.

The product split directs prepared material toward:

• Powder screening and packing
• Granulation, drying, cooling and final classification
  

Variable organic materials. The mixer gives the operator a controlled place to combine wet residues, structural material and selected amendments. Recipe records link supplier variation with compost behaviour and finished composition.

Different bay lengths. The turner arrangement serves the composting building without forcing every batch into identical space. Assigned transfers keep active material away from released mature stock.

Clean product handling. Dry finishing and packing are kept away from wet receiving activity. Extraction covers:

• Dryer exhaust
• Cooling and dry transfers
• Powder classification and filling
  

An eight-person team. Responsibilities span compost handling, process operation, maintenance, laboratory work and dispatch. Training connects the two parts of the business:

• Mixture preparation, bay management and curing
• Granule formation and recycle
• Drying, cooling and product condition
• Collection-system and water-circuit service

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Give the Grower Useful Product Information

Product declarations describe the material actually supplied: organic matter, nutrient content, pH, salts, moisture and the relevant contaminant results. Those details support agronomic decisions and give the sales team a concrete product to discuss.

Granular-product information includes:

Property	Product declaration	Role
Organic matter	Dry-basis analysis	Agronomic value
Nutrients	Individual contents	Application planning
Organic nitrogen	Analytical result	Product composition
pH	Measured value	Soil suitability
Moisture	Storage specification	Packing
Granule size	2–5 mm target	Spreading
Salmonella	Product-release requirement	Hygiene
Indicator organisms	Laboratory requirement	Hygiene
Heavy metals	Applicable limits	Material acceptance

Powder-product information includes:

Property	Release basis
Organic matter	Measured on declared basis
Nutrients	Tested product composition
pH and salts	Suitable for intended use
Moisture and maturity	Storage and agronomic specification
Particle size	Product-specific screened fraction

Packing choices reflect the buyer’s handling system:

Format	Handling	Product control
Granules in bags	Palletized dispatch	Size and moisture
Granules in large packs	Suitable filling arrangement	Pack strength
Powder in bags	Dust-controlled filling	Moisture and closure
Powder in bulk packs	Buyer-compatible unloading	Flow and storage

The two routes serve different commercial needs:

Route	Processing	Buyer handling	Quality focus
Powder	Crush and screen	Suitable spreader or blending	Maturity and salts
Granules	Form, dry and cool	Granular spreading	Size and strength
Shared base	Mature compost	Traceable batch	Composition and stability

Each delivery identifies composition, batch, quantity and product format.

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Develop the Market Around Repeatable Product Quality

Nearby growers can evaluate consistent product within their own crop and soil programmes.

• Organic matter. A stated analytical basis makes the declaration meaningful alongside product moisture.
• Nutrient contribution. Individual nutrient results support application alongside other inputs.
• Application suitability. Product form and composition are considered together with the grower’s equipment and cropping system.
• Batch traceability. Ingredient and process records follow the material through to the bag or bulk delivery.

Additional orders need released mature stock before more finishing hours. The operation addresses these practical constraints:

Constraint	Response
Variable organic receipts	Adjust blend using analysis and measured moisture
Odour	Aerobic processing and contained handling
Drying demand	Balance evaporation against product schedule
Transport-sensitive customers	Choose product format and delivery radius together

Eight staff cover processing, packing, quality and administration, with specialist maintenance contracted. Compost checks continue daily; finishing follows a five-day order schedule.

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Configure Your Compost Fertilizer Plant in Argentina

RICHI Machinery can connect your material-handling and finishing requirements in one process proposal. The most useful starting information is the condition and weekly quantity of the organic material, followed by the product your customers need.

• Material analyses. Moisture, salts, organic matter and relevant contaminants guide the process route.
• Heat and electrical supply. The available services define how the drying and drive systems connect to the premises.
• Product formats. Powder, granules and packing sizes determine the finishing and dispatch scope.
• Site arrangement. Receiving, bays, curing and warehouse positions show how material can move through the facility.

Request an organic fertilizer production line proposal that compares the compost granulation line and powder fertilizer plant on the same material basis. RICHI can identify the shared fertilizer plant equipment and the additional machinery needed for each product route.

Send the material analyses and site drawing for a coordinated process proposal.