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Sequential Batch Reactor (SBR) Wastewater Treatment Systems

Sequential Batch Reactor Water Treatment

Sequential Batch Reactor Water Treatment (SBR) was developed for congested area where construction of collection system (sewer) is not cost effective. This technology was designed to for small to medium population such as apartment and office complexes, hospitals rest stops. Its advantage over the conventional domestic wastewater treatment system is its small foot print and ease of operation.

This technology utilizes aerobic process and is capable of treating wastewater with high strength in BOD and TSS to 20/20 at the plant discharge. Lower BOD/TSS is possible for the application of discharging to local the river. The resultant sludge is further treated by aerobic process for sludge volume reduction. Standard filter press for small size plant and belt presses for larger one can be utilized for dewatering the treated sludge to a non-hazardous, dry sludge.

We designed and managed the construction of more than 30 of these plants in Taiwan, where implementation of sewer collection system was not possible. Five of these plants won the national award form a Environmental Protection office in Taiwan, the equivalent of EPA award in US.

SBR can be designed from 100,000 GPD to 50,000,000 GPD.

Call us for obtaining a quotation on our SBR system.

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