Maurice Tutor

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  • MCS,PHD
    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 21 Oct 2017 My Price 7.00

constituents of industrial waste

Ammonia is one of the chemical constituents of industrial waste that must be removed in a treatment plant before the waste can safely be discharged into a river or estuary. Ammonia is normally present in wastewater as aqueous ammonium hydroxide (NH+4OH–). A two-part process is frequently carried out to accomplish the removal. Lime (CaO) is first added to the wastewater, leading to reaction the hydroxide ions produced in this reaction drive the following reaction to the right, resulting in the conversion of ammonium ions to dissolved ammonia: Air is then contacted with the wastewater stripping out the ammonia.
(a) One million gallons per day of alkaline wastewater containing 0.03 mole NH3/mole ammonia- free H2O is fed to a stripping tower that operates at 68°F. Air at 68°F and 21.3psia contacts the wastewater counter currently as it passes through the tower. The feed ratio is 300ft3air/gal wastewater, and 93% of the ammonia is stripped from the wastewater. Calculate the volumetric flow rate of the gas leaving the tower and the partial pressure of ammonia in thisgas.

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Maurice Tutor
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Status NEW Posted 21 Oct 2017 10:10 AM My Price 7.00

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