Composting time–temperature profile
The sanitation window, how it is measured, and what to do when a pile will not hold temperature.
Read the note →
01
Published notes
Moisture and carbon–nitrogen balance
The two-variable calculation that decides amendment volume, fermentation performance and dryer load.
Read the note →Granule strength and size distribution
Targets, test methods, and the process settings that move granule quality in the right direction.
Read the note →02
Why we publish numbers
Most fertilizer plant problems are not mysteries. A pile that will not heat is usually too dry or too wet; granules that break in the bag usually lack binder or were dried too fast; a dryer that cannot keep up is usually being fed material wetter than it was specified for. Writing the ranges down and measuring against them turns those problems into routine corrections.
These notes are the same material we hand over in a commissioning package, published in a shorter form. Where a note states a range, it is a planning or operating range from our own plants — not a substitute for the design basis of a specific project.
Ask a specific question
If a plant is not behaving as the notes suggest, send us the measurements and we will say what we would check first.
FAQ
Plant engineering questions
Can I use these notes to design my own plant?
They are useful for planning and for checking a design, but a plant still needs a mass and moisture balance from its own feedstock data, and drawings that account for the actual site.
Do the notes cover equipment specifications?
No. They cover process targets and checks. Equipment is selected against the design basis, because the same duty can be met by machines of very different sizes depending on feedstock and moisture.
How often are notes added?
As commissioning and plant-operation questions repeat. The three published here are the ones that come up most often in the first year of a plant's life.
Send us your design basis
Tell us the feedstock, the daily tonnage and the product you want to sell. The engineering team replies with the plant configuration, the equipment scope and the information we still need before layout drawings start.
- Feedstock profile — type, moisture, contamination, seasonal peaks
- Capacity — t/day fresh material or t/h finished fertilizer
- Product — powder, granules, bagged retail, bulk compost
- Site — available area, power supply, water, access road
Prefer to talk first? WhatsApp +86 182 0399 3035 or email [email protected].