How do you calculate filtration capacity?

Multiply filtrate output per cycle by available cycles for gross capacity, then multiply by uptime and recovery yield. With 850 L/cycle, 14 cycles, 82% uptime, and 94% yield, gross is 11,900 units and validated capacity is 9,172.52 units.

What is the difference between gross and validated filtration capacity?

Gross capacity (11,900 in the example) is the ideal volume if every cycle ran full and lost nothing. Validated capacity (9,172.52) subtracts availability loss from downtime and recovery loss from hold-up and incomplete recovery.

What is a good uptime for an enzyme filtration skid?

Well-run UF/MF skids on liquid enzymes typically achieve 78-88% uptime over a campaign once CIP, integrity tests, and changeovers are counted. The 82% default is a realistic mature-operation figure.

Why is recovery yield below 100%?

Some product stays in the retentate, dead legs, and membrane hold-up, and diafiltration is never perfectly complete. A 94% recovery yield, as used here, costs about 585 units of capacity even at full uptime.

How do I increase validated filtration capacity?

Add membrane area or cycles to raise gross capacity, reduce CIP and integrity-test time to lift uptime, or improve diafiltration and hold-up recovery to raise yield. Each lever moves a different term in the formula.

Does this account for flux decay over the campaign?

No. The model uses a single average filtrate-per-cycle. If flux declines sharply late in a run, use a lower average value or split early and late cycles into separate estimates.

Industrial Enzymes & Bio-Ingredients calculator

Filtration Capacity Calculator

Filtration capacity tells you how much usable filtrate an ultrafiltration or microfiltration skid can actually deliver over a campaign, once you derate gross throughput for downtime and recovery yield. Bioprocess engineers and operations planners in enzyme and bio-ingredient plants use it to size membrane areas, schedule campaigns, and commit to delivery volumes. It matters because nameplate filtrate-per-cycle is a clean-membrane fiber-spec number — real plants lose hours to CIP, integrity testing, and flux decay, and lose product to retentate hold-up and incomplete diafiltration. Validated capacity is the figure you can actually promise a customer.

What this calculator does

Estimate validated filtration capacity for enzyme broth or bio-ingredient slurry using permeate output per cycle, available cycles, uptime, and recovery yield.
Use it when checking whether clarification, microfiltration, ultrafiltration, or depth filtration can support the batch schedule.
It computes validated filtration capacity by derating gross throughput (filtrate per cycle times available cycles) for expected uptime and recovery yield.

Formula used

Gross filtration capacity = filtrate output per cycle × available filtration cycles
Validated filtration capacity = gross capacity × expected filtration uptime × filtration recovery yield

Inputs explained

Filtrate output per cycle:
Available filtration cycles:
Expected filtration uptime:
Filtration recovery yield:

How to use the result

Use it when sizing a membrane skid, planning campaign volumes, or checking whether existing filtration can meet a production target.
It assumes flux and recovery yield are stable across all cycles; in reality flux declines and fouling worsens late in a campaign before CIP.

Current U.S. benchmarks

Industrial natural gas averages $4.9 per Mcf (EIA, Apr 2026), down 7.7% from a year earlier, with industrial electricity at 8.66 cents per kWh. Process heating and refrigeration budgets track both.

Common questions

How do you calculate filtration capacity? Multiply filtrate output per cycle by available cycles for gross capacity, then multiply by uptime and recovery yield. With 850 L/cycle, 14 cycles, 82% uptime, and 94% yield, gross is 11,900 units and validated capacity is 9,172.52 units.
What is the difference between gross and validated filtration capacity? Gross capacity (11,900 in the example) is the ideal volume if every cycle ran full and lost nothing. Validated capacity (9,172.52) subtracts availability loss from downtime and recovery loss from hold-up and incomplete recovery.
What is a good uptime for an enzyme filtration skid? Well-run UF/MF skids on liquid enzymes typically achieve 78-88% uptime over a campaign once CIP, integrity tests, and changeovers are counted. The 82% default is a realistic mature-operation figure.
Why is recovery yield below 100%? Some product stays in the retentate, dead legs, and membrane hold-up, and diafiltration is never perfectly complete. A 94% recovery yield, as used here, costs about 585 units of capacity even at full uptime.
How do I increase validated filtration capacity? Add membrane area or cycles to raise gross capacity, reduce CIP and integrity-test time to lift uptime, or improve diafiltration and hold-up recovery to raise yield. Each lever moves a different term in the formula.

Last reviewed 2026-05-12.