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Water/Wastewater Math Calculator
Treatment Unit Efficiency Calculator (Wastewater)

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This calculator can calculate how efficiently a treatment unit (or entire treatment process) is working. It will calculate pounds in, pounds out, pounds removed and percent removal. You will need to enter data for flow, influent and effluent values (BOD, TSS, NH3-N, Etc.) to calculate removal efficiency. See the Lab manual for information on testing


Formula:

(F x I) x 8.34
=Influent Lbs.

***

(F x E) x 8.34
=Effluent Lbs.

***

Inf lbs - Eff Lbs
=Lbs Removed

***

Lbs Rem / Inf Lbs
x 100
= % Removal



Enter the treatment unit Flow MGD
(millions of gallons per day)
(example 2000 gallons per day = .002 MGD)

FLOW

MGD.

Enter Treatment Unit INFLUENT Concentration of Parameter, mg/l or PPM
(mg/l of BOD, TSS, etc..)

Influent

mg/l

Enter Treatment Unit EFFLUENT Concentration of Parameter, mg/l or PPM (mg/l of BOD, TSS, etc...)

Effluent

mg/l



Click on this button to do the calculations

Lbs. Coming into Treatment Unit
INFLUENT LBS.

Influent

Lbs.

Lbs. Leaving the Treatment Unit
EFFLUENT LBS.
.

Effluent

Lbs.

Lbs. Removed by the Treatment Unit
REMOVED LBS.

Lbs.

Removed

% Removed by Treatment Unit

REMOVAL EFFICIENCY %

Removal

Efficiency %

Water/Wastewater math calculator. Select the calculator you want, then press GO!