A biogas plant: digester, gas holder preventive maintenance schedule lists the checks and jobs done on the equipment at fixed intervals, how long each takes, and in what order of frequency, so problems are found before the biogas plant: digester, gas holder fails. This page gives the schedule used in the PlantOps360 task library for biogas plant: digester, gas holder (, gas engine and scrubber), which follows common industry practice for general-purpose equipment. It is also searched for as biogas, digester, gas holder, biogas engine.
The maker’s manual and your site safety procedures always come first where they differ. Intervals set by law differ by state.
Biogas plant: digester, gas holder preventive maintenance schedule and checklist
| How often | Task | Estimated time |
|---|---|---|
| Daily | Check digester temperature, pH, gas production and pressure; check for leaks with a gas detector | 10 min |
| Weekly | Check mixers or agitators and slurry pumps; drain condensate | 20 min |
| Monthly | Check gas engine oil level and spark plugs; check H2S scrubber media | 45 min |
| Quarterly | Check safety valves and flame arrestors; check the gas holder membrane | 90 min |
| Half-yearly | Gas engine service as per OEM hours: oil change, filters and valve clearance | 150 min |
| Annual | Annual inspection of the digester and gas holder; safety valve test | 360 min |
Biogas plant: digester, gas holder maintenance frequency and yearly workload
At the estimated times, one biogas plant: digester, gas holder needs about 104 hours of preventive maintenance a year. The biggest single job is “Annual inspection of the digester and gas holder; safety valve test” at 360 minutes, done annual. Multiply by the number of units you have to see the workload for your plant.
| Frequency | Tasks | Time per round | Hours per year |
|---|---|---|---|
| Daily | 1 | 10 min | 60.8 h |
| Weekly | 1 | 20 min | 17.3 h |
| Monthly | 1 | 45 min | 9.0 h |
| Quarterly | 1 | 90 min | 6.0 h |
| Half-yearly | 1 | 150 min | 5.0 h |
| Annual | 1 | 360 min | 6.0 h |
What goes wrong on a biogas plant: digester, gas holder without preventive maintenance
- Digester temperature and mixer faults
- Gas leaks
- Gas engine and spark plug faults
- Scrubber and holder faults
What to watch between services
- Digester temperature, pH and gas production
- Mixers and slurry pumps
- Gas holder and leak checks
Safety and statutory notes for biogas plant: digester, gas holder maintenance
Biogas is flammable and contains hydrogen sulphide, which is toxic. Gas-test before entry, and keep ignition sources away.
Where a biogas plant: digester, gas holder preventive maintenance schedule is used
This equipment is used in the industries below. Each link opens the preventive maintenance schedule guide for that industry, and the maintenance software page where we have one.
- Preventive maintenance schedule for food, dairy and beverage plants · maintenance software for food processing · maintenance software for dairy
- Preventive maintenance schedule for agro, grain, edible oil and sugar plants · maintenance software for sugar and distilleries
- Preventive maintenance schedule for solar, wind and renewable energy plants · maintenance software for renewable energy
- Preventive maintenance schedule for water and wastewater utilities
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Browse the full list of equipment preventive maintenance schedules (317 types).
Run this biogas plant: digester, gas holder schedule in maintenance software
In preventive maintenance software, each row above becomes a recurring task on the asset with its checklist, time estimate and parts. Tasks can be triggered by calendar date, running hours, meter readings or production cycles, each completed task is recorded with the person and date, and a failed check can open a work order. For the method behind it, read the guide to the preventive maintenance schedule, or use the free generator to get a 12-month plan for your whole equipment list.
Build my preventive maintenance schedule (free Excel)
Frequently asked questions
How often should a biogas plant: digester, gas holder be serviced?
In our schedule a biogas plant: digester, gas holder has 6 tasks: 1 daily, 1 weekly, 1 monthly, 1 quarterly, 1 half-yearly, 1 annual. The biggest job is “Annual inspection of the digester and gas holder; safety valve test”, which is done annual. Always follow the maker’s manual where it gives a different interval.
What is included in biogas plant: digester, gas holder preventive maintenance?
It covers routine checks and jobs such as “Check digester temperature, pH, gas production and pressure; check for leaks with a gas…”, “Check mixers or agitators and slurry pumps; drain condensate”, “Check gas engine oil level and spark plugs; check H2S scrubber media”, up to the annual overhaul or inspection. The full list with times is in the table above.
How many hours of maintenance does a biogas plant: digester, gas holder need per year?
About 104 hours per unit per year at the estimated times in our library, including the daily checks done every day. Use it to plan workload, not as a benchmark.
Is there a free biogas plant: digester, gas holder maintenance checklist?
Yes. The table on this page is a ready checklist. The free preventive maintenance schedule generator turns it into a 12-month Excel schedule for your list of equipment, with monthly workload hours.