Engineering Tool · Treatment Process Design
Screen supplemental carbon, phosphorus precipitation, alkalinity, sludge impacts, and operating cost for wastewater treatment.
Carbon, phosphorus, sludge & OpEx screening.
Stage 1 — Supplemental COD dosing
Flow, nitrate, dissolved oxygen, and selected reagent drive the first estimate.
Applies to all cost inputs and outputs. No currency conversion is performed.
Stage 2 — Metal salt coagulant dosing
Calculation basis: Preliminary stoichiometric screening estimate; not a guaranteed full-scale operating or compliance dose. Confirm the final plant dose with site-specific testing and operating data.
TP load, selected coagulant, and alkalinity determine the engineering check.
Set a manual ratio or return to the target-TP rule.
Measured alkalinity used to determine residual and buffer need.
Alkalinity demand is evaluated from the selected coagulant screening basis.
Valid inputs will calculate stoichiometric dosing rates automatically
Carbon demand · Coagulant dosing · OpEx · Sludge yield
The screening converts design flow and nutrient targets into supplemental carbon demand, metal-salt phosphorus dosing, reagent feed rates, sludge yield, alkalinity response, and operating-cost indicators.
Preliminary stoichiometric screening for denitrification carbon, DO-scavenging demand, alum, ferric, ferrous, and PAC dosing, buffer demand, sludge production, clarifier loading, storage, and cost comparisons.
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