boiler sewage ratio and continuous discharge amount

Sewage Parameters 7: Chemical Oxygen Demand (COD) Butler ...

May 23 2018 · Furthermore there is usually a stable ratio between COD/BOD in a stable wastewater flow. BMS have recorded average ratios of 2-3 mg/l COD to 1 mg/l BOD over its 30 years of business. Influent COD in normal domestic sewage is therefore generally 600 900 mg/l and it is then treated to at least 75 -100 mg/l before discharge to minimise ...

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Steam Calculators: Boiler Calculator

Mar 17 2015 · Steam Boiler and Blowdown Pressure are the same. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure.

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Steam Calculators: Boiler Calculator

Mar 17 2015 · Steam Boiler and Blowdown Pressure are the same. Combustion Efficiency is the % of fuel energy that is directly added to the feedwater and not otherwise lost or used. Blowdown Rate is the % of incoming feedwater mass flow rate that leaves the boiler as a saturated liquid at boiler pressure.

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Controlling Water Usage and Wastewater Discharge | Power ...

Sep 01 2011 · Lets look at a unit operation that has a large impact on makeup water usage and wastewater discharge: cooling towers. The primary method of heat transfer in a cooling tower comes from ...

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