## Regulations: (full text, PDF format, unless otherwise noted)

(40 CFR–Chapter I–Environmental Protection Agency, Supchapter N-Effluent Guidelines)

(40 CFR–Chapter I–Environmental Protection Agency, Supchapter D-Water Programs)

(40 CFR–Chapter I–Environmental Protection Agency, Supchapter C-Air Programs)

(40 CFR–Chapter I–Environmental Protection Agency, Supchapter I-Solid Wastes)

Soil/Groundwater Contamination

(40 CFR–Chapter I–Environmental Protection Agency, Supchapter R-Toxic Substances Control Act)

(40 CFR–Chapter I–Environmental Protection Agency, Supchapter J-Superfund Emergency

(Standard, 29 CFR– html format)

(40 CFR Part 68)(text format, 470 kb)

## Waste Water Neutralization Calculations_U S

##### Calculations

gmp

WW Flow Rate, Qww =

gal/day

Moles/L of OH needed =

moles/L

Incoming pH, pHin =

NaOH rate needed =

moles/day

Desired pH, pHout =

Caustic solution rate =

lb/day

Caustic sol’n % NaOH =

Caustic solution rate =

gal/day

Caustic sol’n density, ρ =

lb/gal

Daily cost of caustic =

\$/day

Caustic solution cost =

\$/lb

##### Inputs

gmp

WW Flow Rate, Qww =

gal/day

Incoming pH, pHin =

Desired pH, pHout =

Caustic sol’n % NaOH =

Caustic sol’n density, ρ =

lb/gal

Caustic solution cost =

\$/lb

##### Calculations

Moles/L of OH needed =

moles/L

NaOH rate needed =

moles/day

Caustic solution rate =

lb/day

Caustic solution rate =

gal/day

Daily cost of caustic =

\$/day

##### Calculations

gmp

WW Flow Rate, Qww =

gal/day

Moles/L of H+ needed =

moles/L

Incoming pH, pHin =

H2SO4 rate needed =

moles/day

Desired pH, pHout =

Acid solution rate =

lb/day

Acid sol’n % H2SO4 =

Acid solution rate =

gal/day

Acid sol’n density, ρ =

lb/gal

Daily cost of acid =

\$/day

Acid solution cost =

\$/lb

##### Inputs

gmp

WW Flow Rate, Qww =

gal/day

Incoming pH, pHin =

Desired pH, pHout =

Acid sol’n % H2SO4 =

Acid sol’n density, ρ =

lb/gal

Acid solution cost =

\$/lb

##### Calculations

Moles/L of H+ needed =

moles/L

H2SO4 rate needed =

moles/day

Acid solution rate =

lb/day

Acid solution rate =

gal/day

Daily cost of acid =

\$/day