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Turnkey Services

Turnkey Services

Tired of dealing with numerous consultants and subcontractors? Let SRI provide you with a piece of mind for your water and wastewater projects. SRI offers full turnkey services that include system specification, system design, project management, fabrication & manufacturing, installation, and testing. Our management team has over 100 years of combined experience in providing turnkey solutions for clients worldwide. We are ready to help you no matter where your project is located. Contact us for more detail on how we can support you in building a first-class facility.

Waste Water Neutralization Calculations_U S

1. Caustic Addition – (pH is too low and must be raised)
Instructions: Enter values in blue boxes. Spreadsheet calculates values in yellow boxes
Inputs
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

Wastewater Neutralization Calculations – U.S. units
1. Caustic Addition – (pH is too low and must be raised)
Instructions: Enter values in blue boxes. Spreadsheet calculates values in yellow boxes
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

Wastewater Neutralization Calculations – U.S. units
2. Acid Addition – (pH is too high and must be lowered)
Instructions: Enter values in blue boxes. Spreadsheet calculates values in yellow boxes
Inputs
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

Wastewater Neutralization Calculations – U.S. units
2. Acid Addition – (pH is too high and must be lowered)
Instructions: Enter values in blue boxes. Spreadsheet calculates values in yellow boxes
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