Four content tracks, one purpose: informed reading
"Services" here means structured information, not installation work. Everything below is a summary of public material, organised so a farm manager can find the relevant section quickly.
Educational guides on the digestion process itself
Plain-language explanations of what happens inside the tank, written from public technical bulletins rather than manufacturer marketing.
Mesophilic vs thermophilic operation
Most small Polish farm systems run mesophilic, around 35 to 38°C, because it tolerates temperature swings better and needs less heating input than thermophilic operation near 55°C. We outline the trade-offs public sources describe for each.
Feedstock mixing ratios
Manure alone digests slowly. Public agronomy guidance often recommends co-digesting with a small share of crop residue or silage waste to balance carbon-to-nitrogen ratio and improve gas yield stability.
Sizing reference for a thirty-head herd
A worked example based on published sizing formulas, useful as a sanity check before commissioning a professional feasibility study.
| Parameter | Typical published range |
|---|---|
| Herd size | 30 cattle (dairy or beef) |
| Fresh manure output | 20-30 kg per head per day |
| Total daily feedstock | 600-900 kg |
| Digester volume | 100-200 m³ |
| Retention time | 30-50 days, mesophilic |
| Indicative gas yield | 4-8 m³ biogas per hour |
| Digestate storage | Sized to local storage period rules, often 4-6 months |
Figures compiled from published agricultural extension sizing formulas. Actual output varies with diet, bedding material, ambient temperature and tank insulation. This table is a reference point, not an engineering calculation for a specific farm.
Reading an ARiMR call for proposals document
Programme documents follow a recognisable structure. Knowing the sections in advance makes the actual document easier to read.
Scope and objective
States which investment types qualify, usually including renewable energy production for on-farm use such as small biogas installations.
Eligibility conditions
Farm size thresholds, registration requirements and sometimes minimum agricultural income criteria published for the specific call.
Required documents
Typically includes land ownership or lease proof, herd registration extracts, a cost estimate or offer, and sometimes an environmental declaration.
Payment and monitoring period
Sets out reimbursement structure and the multi-year period during which the funded asset must remain in agricultural use.
Programme details change between calls. Always confirm current requirements directly on the official ARiMR website before preparing an application; this page summarises the general document structure only.
Month-by-month maintenance reference
A generalised calendar drawn from operator manuals and farm accounts. Actual tasks vary by system design and manufacturer.
| Period | Typical focus |
|---|---|
| January - February | Monitor tank temperature closely, check insulation and heating elements, watch for reduced gas pressure in cold weather. |
| March | Inspect gasholder membrane for frost damage, check pipework for condensation blockages after winter. |
| April - May | Adjust feeding rate as manure composition shifts with early grazing, recalibrate mixing if bedding type changes. |
| June - July | Watch for foam formation as temperatures rise, check safety valves and pressure relief more frequently. |
| August | Clean sediment from inlet and outlet pipes, inspect stirring mechanism for wear. |
| September | Review digestate storage capacity ahead of the autumn spreading window and any storage period rules. |
| October | Begin winter preparation: check insulation, seals and heating system before temperatures drop. |
| November - December | Full inspection of gas lines, pressure gauges and safety equipment before the coldest months. |
Want the printable versions of these tables?
The downloads page has checklist and reference sheet versions of the sizing and maintenance tables above.
Go to free downloads