Digestate / organic sludge
Wet organic solids requiring separation and stabilization
Home / Solutions / Biogas Residue & Sludge Solutions / Biogas Digestate Organic Fertilizer Production Line
01 · Complete production solution
Biogas Digestate Organic Fertilizer Production Line
Converts variable organic feedstock into a more stable, manageable fertilizer product through a coordinated treatment process.
02
Project definition
Quick answer
Start with material condition, product specification and operating plan before selecting equipment.
SolutionBiogas Digestate Organic Fertilizer Production Line
Primary feedDigestate / organic sludge, Crop straw & biomass, Humic acid / biochar
Finished productMarket-ready fertilizer granules
Process routeMaterial preparation → Aerobic fermentation → Crushing & mixing → Granulation → Drying & classification → Finishing / packing
CapacityProject-specific; confirmed by mass balance
VoltageConfirmed for the destination country
AutomationManual-assisted, coordinated automatic or integrated
Project scopeProcess, equipment, controls, layout and service as agreed
One connected process, not isolated machines
Published ranges support planning; final specifications follow the material, site and local-standard review.
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Feedstock readiness
Suitable raw materials
Each material card combines the project requirement with a realistic visual reference.
Crop straw & biomass
Chopped stalks, husks and agricultural residues
Humic acid / biochar
Carbon-rich soil-conditioning material
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Moisture
Measure free water and seasonal variation.
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Particle condition
Confirm size, lumps, fibers and abrasiveness.
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Impurities
Identify stones, metal, plastics or insolubles.
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Storage behavior
Review caking, odor, flow and biological stability.
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Market output
Target finished product
The line is configured backward from the required product and packaging standard.
Target product
Market-ready fertilizer granules
Granule size, strength, moisture, nutrient formula and packaging
Representative material reference. Replace with an approved finished-product photograph.Product formMarket-ready fertilizer granules
Quality basisGranule size, strength, moisture, nutrient formula and packaging
PackagingSmall bag, big bag, bulk or filling format by project
SamplingAgreed location, method and acceptance criteria
TraceabilityRecipe, batch and operating records when configured
Design priorities
- Stable quality across operating shifts
- Practical storage and dispatch
- Safe operator and maintenance access
- Local environmental compliance
- Expansion-ready interfaces when required
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Production sequence
Process flow
Every stage is sized against its inlet, outlet and recycle duty.
01
Material preparation
Protect the next process stage
02
Aerobic fermentation
Stabilize biodegradable organic matter
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Crushing & mixing
Control particle size and break agglomerates
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Granulation
Form the required fertilizer granule
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Drying & classification
Bring product moisture and temperature into the storage range
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Finishing / packing
Weigh and prepare approved product for dispatch
StagePurposeInputEquipmentOutputCritical control
1. Material preparationProtect the next process stageMaterial from the previous stageMobile Compost TurnerConditioned material for the next stageFlow stability, condition and interface
2. Aerobic fermentationStabilize biodegradable organic matterBlended organic feed at the confirmed moistureSemi-Wet Material CrusherMature material ready for size reductionTemperature, time, moisture and aeration
3. Crushing & mixingControl particle size and break agglomeratesPrepared material within the approved moisture rangeDouble-Shaft MixerSized material for mixing or screeningFeed rate, particle size, wear and foreign objects
4. GranulationForm the required fertilizer granuleUniform feed at the process moisture and particle sizeNew-Type Organic Fertilizer GranulatorFresh granules plus controlled recycleFeed rate, moisture or pressure, size and recycle
5. Drying & classificationBring product moisture and temperature into the storage rangeFresh granules at measured moisture and temperatureRotary Drum DryerConditioned granules for classificationAirflow, temperature, residence time and dust
6. Finishing / packingWeigh and prepare approved product for dispatchReleased finished productRotary Drum CoolerFilled package or containerWeight accuracy, cleanliness and traceability
Process balance rule
The final throughput is limited by the complete mass balance—including moisture change, recycle, storage buffers and packaging—not one machine’s nominal number.
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Line architecture
Equipment configuration
Open each machine page for its role and selection boundary.
Integrated equipment
Mobile Compost Turner
Controls aeration, mixing and heat release during the biological stabilization stage.
View details →Integrated equipment
Semi-Wet Material Crusher
Reduces feed material to a controlled particle size for stable downstream processing.
View details →Integrated equipment
Double-Shaft Mixer
Meters, buffers or homogenizes materials to maintain stable recipe control and line flow.
View details →Integrated equipment
New-Type Organic Fertilizer Granulator
Forms conditioned fertilizer feed into market-ready granules with a selected shaping mechanism.
View details →Integrated equipment
Rotary Drum Dryer
Provides thermal conditioning, size classification or surface treatment after granulation.
View details →Integrated equipment
Rotary Drum Cooler
Provides thermal conditioning, size classification or surface treatment after granulation.
View details →
Integrated equipment
Rotary Drum Screener
Provides thermal conditioning, size classification or surface treatment after granulation.
View details →
Integrated equipment
Fertilizer Packing Machine
Completes accurate filling, bag handling and end-of-line preparation for dispatch.
View details →07
Scalable planning
Capacity & operating options
Use these as planning bands only. Final capacity follows the verified mass balance and operating schedule.
≤1 T/H planning band
Compact equipment and more manual-assisted handling where the mass balance supports it.
- Confirm inlet and finished-product basis
- Balance utilities, labor and buffers
- Reserve only validated expansion interfaces
1–5 T/H planning band
Coordinated commercial line with balanced buffers, utilities and controls.
- Confirm inlet and finished-product basis
- Balance utilities, labor and buffers
- Reserve only validated expansion interfaces
≥5 T/H planning band
Higher-duty configuration requiring confirmed recycle, thermal and logistics capacity.
- Confirm inlet and finished-product basis
- Balance utilities, labor and buffers
- Reserve only validated expansion interfaces
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Site engineering
Plant layout
Concept arrangements show the route; final 2D and 3D drawings require the actual site and approved equipment schedule.
01Material preparation
02Aerobic fermentation
03Crushing & mixing
04Granulation
05Drying & classification
06Finishing / packing
Material flow →Dimensions, elevations, aisles, foundations and utilities are issued only after site engineering.
Illustrative production-line view. A project-specific 3D model has not been supplied.
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Customized design
Adapt the arrangement to the land size and building.
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Material flow
Keep the production route direct and efficient.
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Equipment spacing
Reserve operation, lifting and maintenance access.
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Local compliance
Coordinate structure, fire, drainage and discharge.
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Operating boundary
Utility requirements
Utilities are calculated from the final equipment schedule and local conditions.
01
Electricity
Voltage, frequency, connected load and transformer margin
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Water
Process, cleaning and treatment requirements where applicable
03
Heat source
Fuel and hot-air system when thermal conditioning is used
04
Compressed air
Packing, valves and instruments where required
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Workshop
Clear height, foundations, access, ventilation and drainage
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Operators
Shift staffing based on automation and local handling
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Stable production
Quality & environmental control
Control points are selected from the real material risks and product standard.
01
Odor management
Capture and treat emissions from wet-material and fermentation zones.
02
Moisture control
Measure moisture before forming, drying and storage.
03
Dust capture
Control crushing, screening and packing points.
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Biological stability
Confirm maturity before storage or granulation.
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Recycle balance
Return usable off-size material without overloading the line.
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Product sampling
Verify size, moisture and agreed product indicators.
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Budget planning
Investment factors
Compare proposals only after aligning process boundary, local scope and acceptance criteria.
Material pretreatmentTarget capacityCore process routeFinishing systemEnvironmental controlsAutomation levelPacking & local scopePROJECT COST
What determines the investment?
- Raw-material variability and required pretreatment
- Finished-product specification and operating hours
- Core processing, recycle and storage buffers
- Drying, cooling, screening or filtration duty
- Dust, odor, exhaust and wastewater controls
- Automation, packing and finished-product logistics
- Country, freight, installation and civil-work boundary
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Three planning levels
Configuration options
The final equipment list remains project-specific at every automation level.
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Comparable evidence
Project cases
Cases are linked only when their material and core process are relevant.
Illustrative visual
Indonesia · 3 T/H · Chicken manure
Indonesia 3 T/H Chicken Manure Disc Granulation Line
A disc-granulation route for fermented chicken manure, configured around controlled feeding, mixing, granulation and finishing.
Open project record →Illustrative visual
India · 2 T/H · Cow dung
India 2 T/H Cow Dung Organic Fertilizer Line
A stirring-granulation organic fertilizer line developed around local cow dung feedstock and the required finished granule.
Open project record →Illustrative visual
Liberia · 1–2 T/H · Composted organics
Liberia 1–2 T/H Composted Organic Fertilizer Line
A compact stirring-granulation configuration without a cooling stage, matched to the project’s process boundary.
Open project record →14
Engineering rationale
Why this process
The route is built around the required material transformation and the next stage’s inlet condition.
01
Why material preparation?
Protect the next process stage. The critical review covers flow stability, condition and interface.
02
Why aerobic fermentation?
Stabilize biodegradable organic matter. The critical review covers temperature, time, moisture and aeration.
03
Why crushing & mixing?
Control particle size and break agglomerates. The critical review covers feed rate, particle size, wear and foreign objects.
04
Why granulation?
Form the required fertilizer granule. The critical review covers feed rate, moisture or pressure, size and recycle.
05
Why drying & classification?
Bring product moisture and temperature into the storage range. The critical review covers airflow, temperature, residence time and dust.
06
Why finishing / packing?
Weigh and prepare approved product for dispatch. The critical review covers weight accuracy, cleanliness and traceability.
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Buyer questions
Frequently asked questions
These answers define the next engineering step without inventing fixed specifications.
Can the raw material enter the line directly?
Only after moisture, particle size, impurities and pretreatment readiness are confirmed.
Is every listed stage mandatory?
No. The final route is simplified or expanded according to the material and product specification.
How is the final capacity confirmed?
Capacity follows the mass balance, operating hours, recycle load and the slowest connected stage.
Can existing equipment be reused?
Yes, after checking condition, duty, interfaces, controls, elevation and compatibility with the new mass balance.
Can the line be expanded later?
Yes, when space, conveyors, utilities, controls and structural loads reserve the correct interfaces.
What utilities should I provide?
Send local power, fuel, water, compressed-air and environmental conditions for engineering review.
How many operators are required?
Staffing depends on automation, shifts, storage, loading and the local handling method.
Do you provide installation and training?
The project scope can include layout coordination, installation guidance, commissioning and operator training.
What is needed for a quotation?
Send raw-material data, target product, capacity, site, utilities, packaging and preferred automation.
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Start the engineering study
Get a customized production line design
Required project fields are standardized for engineering review and lead routing.