Plumbing Reverse Osmosis Recovery Rate Calculator
Reconcile actual reverse-osmosis feed/permeate batches and pooled volume recovery, concentration inventory by closure only; no rejection/quality or operating pressure inference.
Description
Reverse-osmosis recovery compares permeate with feed volume.
Reverse-osmosis recovery compares permeate with feed volume. Volume closure gives concentrate without establishing solute rejection.1
The returned values include Observed ro recovery fractions, Pooled ro recovery fraction, Observed concentrate liters by batch. The How section below explains the calculation, input rules and interpretation.
When to use Plumbing Reverse Osmosis Recovery Rate Calculator
Use Plumbing Reverse Osmosis Recovery Rate Calculator when you need to evaluate the supplied records under the calculation and evidence rules below. No membrane rejection, water quality or operating-pressure inference is supplied.
Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
How to use Plumbing Reverse Osmosis Recovery Rate Calculator and understand its results
- Prepare measured flows, pressures, temperatures or inventories with consistent units. For catalog tools, use independently verified capacities at the stated operating conditions and supply the explicit design demand.
- Enter observedRoFeedLitersByBatch, observedRoPermeateLitersByBatch using the field table and calculation rules, then run the tool.
- Read observedRoRecoveryFractions, pooledRoRecoveryFraction, observedConcentrateLitersByBatch. The explanation below defines the units, signs, ordering and any flags or placeholder values.
- If the tool reports an input issue, correct the values and run it again. Apply the stated assumptions when interpreting a successfully returned result.
| Input field | Meaning | Value type; see rules below | Requirement |
|---|---|---|---|
| observedRoFeedLitersByBatch | Observed ro feed liters by batch | list of number | Required |
| observedRoPermeateLitersByBatch | Observed ro permeate liters by batch | list of number | Required |
Enter aligned nonempty positive feed and nonnegative permeate liters, with permeate at most feed in every batch. Return batch recovery, pooled recovery and concentrate volumes.
recovery_i=permeate_i/feed_i; pooled=sum(permeate)/sum(feed); concentrate_i=feed_i−permeate_i Units, indexing, boundary conditions and exceptional cases are defined in the calculation rules above.
| Output field | Meaning | Value type |
|---|---|---|
| observedRoRecoveryFractions | Observed ro recovery fractions | list of number |
| pooledRoRecoveryFraction | Pooled ro recovery fraction | number |
| observedConcentrateLitersByBatch | Observed concentrate liters by batch | list of number |
{
"input": {
"observedRoFeedLitersByBatch": [
100,
200
],
"observedRoPermeateLitersByBatch": [
30,
80
]
},
"output": {
"observedRoRecoveryFractions": [
0.3,
0.4
],
"pooledRoRecoveryFraction": 0.36666666666666664,
"observedConcentrateLitersByBatch": [
70,
120
]
}
}Limitations and assumptions
No membrane rejection, water quality or operating-pressure inference is supplied.
Numeric inputs, where present, must be finite. Follow the calculation-specific rules for overflow, underflow and exceptional cases. Numeric lists are limited to 10,000 entries; string lists to 128 strings of at most 128 characters each. The rules above may impose smaller limits. Missing required fields, extra fields, wrong value types and violations of the calculation rules are input errors.
Alternative or Complementary methods
Use Plumbing Water Hardness As Caco3 Calculator: Hardness expressed as CaCO3 converts ion concentrations using equivalent weights. Consistent equivalent weights distinguish this from summing raw ion masses. For a complementary task, use Plumbing Chlorine Contact Time Calculator: Chlorine CT multiplies measured residual concentration by effective contact time. A baffling fraction adjusts nominal volume/flow residence time.
References
Similar or alternative tools
- Plumbing Water Hardness As Caco3 Calculator
Hardness expressed as CaCO3 converts ion concentrations using equivalent weights. Consistent equivalent weights distinguish this from summing raw ion masses.
- Plumbing Chlorine Contact Time Calculator
Chlorine CT multiplies measured residual concentration by effective contact time. A baffling fraction adjusts nominal volume/flow residence time.