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About

We are Engineers Scientists Contractors

Solutions Recovery International (SRI) is a full-service engineering company capable of providing Mechanical, Electrical, Chemical, Civil, structural engineering and Fire Safety and code compliance services and depending upon the scope of the project provide turnkey services for Semiconductor, Plating, PCB, Dairy and Winery industries. SRIis committed to client satisfaction by providing the most innovative engineering solutions.

SRI full range of capabilities based on the skill set of our talented employees and subcontractors enables us to offer total MEP solutions.  Based on these skill sets we also offer  Project Management, coordination, planning, and construction support.

SRI also offers a full line of proven treatment/recycling/reuse technologies that can recycle up to 95% of the rinse water from your operation. These technologies have resulted in a tremendous saving in water and treatment chemicals. In some cases, the product water is deionized water, which can also improve the products’ quality

Solutions Recovery International Professionals

Our team consists of multi-disciplinary, professional and licensed Engineers Scientists Contractor who are experienced and well-informed about current engineering, environmental, and construction technologies.

Ken Ravon, PE, MBA

Kent Sezen, P.E., S.E.

David Hammond, M.S., Ph.D.

Brian Moon, P.E.

Ray Pagaduan, P.E. (Electrical Engineer)

Charles Michaud, Chemical Engineer

Craig Gamma, Code Specialist

Lawrence Esquerra, Field Installation

Hormoz Mogarei, Kaizen Services

David Gramazio

Nigel Slater

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