Determine COD N and P Fractionations for Raw and Settled Wastewaters Excel Task

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nyvzvfuny

Engineering

Description

Please do the manual calculation for the Nutrient Removal for Activated Sludge. A sample Calculation sheet is provided, please follow smiliar to the excel sheet. Word file is the design calcuation requirements.

A conventional activated sludge (CAS) wastewater treatment plant (WWTP) has been monitored to assess its performance. For that purpose, a sampling campaign has been conducted to determine the influent wastewater characteristics based on the most important analytical parameters of interest.

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Design procedure Define WWTP configuration Calculate COD, N and P fractions Define kinetic (ToC) and stoichiometric parameters Try to keep fx,ana ≥ 0.10 and fx1 ≥ 0.15 Propose fxt (~0.50-0.60), fx,ana, fx1 and find SRTmin for nitrification EBPR Design aopt > 5.0? Decrease fx1 and consider to decrease fxt Nitrification Design Denitrification Design Meet Standards? yes no Dp1
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Explanation & Answer

Attached. Please let me know if you have any questions or need revisions.

Q1.1) Determine the COD, N and P fractionations for the raw and settled wastewaters

Known data
COD

Nitrogen

Sti
=
540
mg/L
Soluble
=
210
mg/L
Si
=
41
mg/L
103 mg/L
Tss(raw waste)
=
ISS(Raw waste)
=
25
mg/L
Tss(settle waste)
=
35
mg/L
ISS(Settle waste)
=
32
mg/L
VSS(Settle waste)
=
7
mg/L
297 mg/L
Sbi
Sf+SVFA+Xs=Sti-(Tss+Iss+Vss)-FCOD
SVFA
=
139
mg/L
Calculation
Non-biodegradable
=
Sti - Sbi
=
243
mg/L
Particulate =
=

Sti - Soluble
33...


Anonymous
I was having a hard time with this subject, and this was a great help.

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