Solid–liquid separation
Evaluating settling, compaction, clarification and cake formation to understand whether a separation duty is technically realistic.
Peter-John Bull · Process engineering
Engineering clearer decisions for difficult separation problems.
I work on industrial process problems where feed behaviour, separation equipment and operating conditions interact. My focus is turning limited plant data into structured test work, defensible assumptions and practical equipment decisions.
Current interests
Applied process work, from sample to operating plant.
I am interested in the decisions that connect laboratory observations to equipment selection and stable operation. That includes how a material behaves under force, what the result means at scale, and which operating variables matter most.
Decanter centrifuge applications
Connecting feed properties and separation objectives to bowl speed, differential speed, pond depth, torque, wear and throughput.
Test work and scale-up
Building repeatable test methods, recording limitations and translating bench-scale evidence into useful design or trial hypotheses.
Commissioning and optimisation
Using controlled changes, clear acceptance criteria and operating data to improve stability without losing sight of the process objective.
Selected work
Technical work built around evidence and operating reality.
Separation test programmes
Structured sample testing for difficult slurries and sludges. The work covers representative sampling, bench centrifuge trials, visual and measured comparison of solids and liquid phases, polymer response, moisture measurement, and a clear record of uncertainty.
SamplingSpin testingMoisturePolymer screening
Decanter application development
Application work that links the required outcome to the machine and the feed. Instead of treating capacity as a single number, the assessment considers clarification, cake dryness, solids loading, residence time, scroll transport, torque margin and likely wear exposure together.
G-forceDifferential speedTorqueWear
Plant trials and technical reporting
Trial planning and reporting designed to make results usable after the site work is finished. A defined test matrix, controlled variable changes, sample timing, operating records and concise conclusions help separate equipment effects from normal process variation.
Trial matrixOperating dataMass balanceRecommendations
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